昂宝OB2263中文规格书

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OB2263芯片

GENERAL DESCRIPTIONOB2263 is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flybackconverter applications in sub 30W range.PWM switching frequency at normal operation is externally programmable and trimmed to tight range. At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching loss. Lower standby power and higher conversion efficiency is thus achieved. VDD low startup current and low operating current contribute to a reliable power on startup design with OB2263. A large value resistor could thus be used in the startup circuit to minimize the standby power. The internal slope compensation improves system large signal stability and reduces the possible sub-harmonic oscillation at high PWM duty cycle output. Leading-edge blanking on current sense(CS) input removes the signal glitch due to snubber circuit diode reverse recovery and thus greatly reduces the external component count and system cost in the design. OB2263 offers complete protection coverage with automatic self-recovery feature including Cycle-by-Cycle current limiting (OCP), over load protection (OLP), VDD over voltage clamp and under voltage lockout (UVLO). The Gate-drive output is clamped to maximum 18V to protect the power MOSFET. Excellent EMI performance is achieved with On-Bright proprietary frequency shuffling technique together with soft switching control at the totem pole gate drive output. Tone energy at below 20KHZ is minimized in the design and audio noise is eliminated during operation. OB2263 is offered in SOT23-6, SOP-8 and DIP-8 packages.FEATURES ■ On-Bright Proprietary Frequency Shuffling Technology for Improved EMI Performance.■ Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design ■ Audio Noise Free Operation ■ External Programmable PWM Switching Frequency■ Internal Synchronized Slope Compensation■ Low VDD Startup Current and Low Operating Current (1.4mA)■ Leading Edge Blanking on Current Sense Input ■ Good Protection Coverage With Auto Self-Recovery oVDD Over Voltage Clamp and Under Voltage Lockout with Hysteresis (UVLO) o Gate Output Maximum Voltage Clamp (18V) o On-Bright Proprietary Line Input Compensated Cycle-by-Cycle Over-current Threshold Setting For Constant Output Power Limiting OverUniversal Input Voltage Range. o Overload Protection (OLP) APPLICATIONS Offline AC/DC flyback converter for■ Battery Charger ■ Power Adaptor ■ Set-Top Box Power Supplies■ Open-frame SMPSTYPICAL APPLICATIONGENERAL INFORMATIONPin ConfigurationThe OB2263 is offered in SOT23-6, DIP8 and SOP8 packages, shown as below.Ordering Information Part Number DescriptionOB2263MP SOT23-6, Pb-free OB2263AP DIP8, Pb-free OB2263CP SOP8, Pb-freePackage Dissipation RatingPackageR θJA (°C/W)DIP8 90 SOP8 150SOT23-6200Absolute Maximum RatingsParameter Value VDD DC Supply Voltage30 V VDD Zener Clamp VoltageNoteVDD_Clamp+0.1VVDD DC Clamp Current 10 mA V FB Input Voltage -0.3 to 7V V SENSE Input Voltage to Sense Pin-0.3 to 7V V RI Input Voltage to RI Pin -0.3 to 7V Min/Max Operating Junction Temperature T J -20 to 150 o C Min/Max Storage Temperature T stg-55 to 160 o C Note: VDD_Clamp has a nominal value of 34V.Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute maximum-rated conditions for extended periods may affect device reliability.Marking InformationTERMINAL ASSIGNMENTSPin Name I/O DescriptionGND PGroundFB I Feedback input pin. The PWM duty cycle is determined by voltage level into this pin and SENSE pin input.RI I Internal Oscillator frequency setting pin. A resistor connected between RI and GND sets the PWM frequency.SENSE I Current sense input pin. Connected to MOSFET current sensing resistor node.VDD P Chip DC power supply pin.GATE O Totem-pole gate drive output for the power MOSFET.RECOMMENDED OPERATING CONDITIONSymbol Parameter MinMaxUnitVDD VDD Supply Voltage 10 to 30 VRI RI Resistor Value 100 KohmT A Operating Ambient Temperature -20 to 85 o CBLOCK DIAGRAMELECTRICAL CHARACTERISTICS(T A = 25O C if not otherwise noted)Symbol Parameter Test Conditions Min Typ Max Unit Supply Voltage (VDD) I_VDD_Startup VDD Start up Current VDD =12.5V, RI=100K Measure Leakage currentinto VDD3 20 uAI_VDD_Ops Operation Current VDD =16V,RI=100Kohm, V FB =3V1.4 mA UVLO(ON) VDD Under Voltage Lockout Enter7.8 8.8 9.8 VUVLO(OFF) VDD Under Voltage Lockout Exit (Recovery)13 14 15 VVDD_Clamp VDD Zener Clamp VoltageI VDD = 5 mA 34 VFeedback Input Section(FB Pin)A VCS PWM Input Gain ΔV FB /ΔV cs2.0 V/V V FB_Open V FB Open Loop Voltage4.8 VI FB _Short FB pin short circuit current Short FB pin to GND and measure current1.2 mAV TH _0D Zero Duty Cycle FB Threshold Voltage VDD = 16V, RI=100Kohm0.75 VV TH _PL Power Limiting FB Threshold Voltage3.7 VT D _PL Power limiting Debounce Time35 mSecZ FB _IN Input Impedance 6 Kohm DC_MAX Maximum Duty Cycle VDD=18V, RI=100Kohm, FB=3V,CS=075 %Current Sense Input(Sense Pin) T_blanking Leading edge blanking timeRI = 100 Kohm 300 nsZ SENSE _IN Input Impedance 40 Kohm T D _OC Over Current Detection andControl DelayVDD = 16V, CS>V TH _OC, FB=3.3V 75 nSecV TH _OC Over CurrentThreshold Voltage at zero Duty CycleFB=3.3V, RI=100 Kohm 0.70 0.75 0.80 V Oscillator F OSC Normal Oscillation FrequencyRI = 100 Kohm 60 65 70 KHZ∆f_TempFrequency Temperature Stability VDD = 16V, RI=100Kohm, T A -20oCto 100 o C5 % ∆f_VDDFrequency Voltage Stability VDD = 12-25V, RI=100Kohm5 % RI_range Operating RI Range 50 100 150 Kohm V_RI_open RI open load voltage 2 VF osc_BM Burst Mode BaseFrequency VDD = 16V, RI =100Kohm22 KHZGate Drive OutputVOL Output Low Level VDD = 16V, Io = -20 mA0.8 V VOH Output High Level VDD = 16V, Io = 20 mA 10 VV_Clamp OutputClampVoltage Level 18VT_r Output Rising Time VDD = 16V, CL = 1nf 220 nSec T_f Output Falling Time VDD = 16V, CL = 1nf 70 nSec Frequency Shuffling∆f_OSC FrequencyModulation range/Base frequencyRI=100K -33%f_shuffling Shuffling Frequency RI=100K 64 HZUVLO(ON) vs Temp8.08.28.48.68.89.0-20104070100130Temp(C)U V L O (O N ) (V )OPERATION DESCRIPTIONThe OB2263 is a highly integrated PWM controller IC optimized for offline flyback converter applications in sub 30W power range. The extended burst mode control greatly reduces the standby power consumption and helps the design easily meet the international power conservation requirements.•Startup Current and Start up Control Startup current of OB2263 is designed to be very low so that VDD could be charged up above UVLO threshold level and device starts up quickly. A large value startup resistor can therefore be used to minimize the power loss yet provides reliable startup in application. For AC/DC adaptor with universal input range design, a 2 MΩ, 1/8 W startup resistor could be used together with a VDD capacitor to provide a fast startup and low power dissipation solution.•Operating CurrentThe Operating current of OB2263 is low at 1.4mA. Good efficiency is achieved with OB2263 low operating current together with extended burst mode control features.•Frequency shuffling for EMI improvement The frequency Shuffling/jittering (switching frequency modulation) is implemented in OB2263. The oscillation frequency is modulated with a random source so that the tone energy is spread out. The spread spectrum minimizes the conduction band EMI and therefore reduces system design challenge.•Extended Burst Mode OperationAt zero load or light load condition, majority of the power dissipation in a switching mode power supply is from switching loss on the MOSFET transistor, the core loss of the transformer and the loss on the snubber circuit. The magnitude of power loss is in proportion to the number of switching events within a fixed period of time. Reducing switching events leads to the reduction on the power loss and thus conserves the energy.OB2263 self adjusts the switching mode according to the loading condition. At from no load to light/medium load condition, the FB input drops below burst mode threshold level. Device enters Burst Mode control. The Gate drive output switches only when VDD voltage drops below a preset level and FB input is active to output an on state. Otherwise the gate drive remains at off state to minimize the switching loss and reduces the standby power consumption to the greatest extend. The frequency control also eliminates the audio noise at any loading conditions.•Oscillator OperationA resistor connected between RI and GND sets the constant current source to charge/discharge the internal cap and thus the PWM oscillator frequency is determined. The relationship between RI and switching frequency follows the below equation within the specified RI in Kohm range at nominal loading operational condition.)()(6500KhzKohmRIFOSC=•Current Sensing and Leading Edge Blanking Cycle-by-Cycle current limiting is offered in OB2263 current mode PWM control. The switch current is detected by a sense resistor into the sense pin. An internal leading edge blanking circuit chops off the sense voltage spike at initial MOSFET on state due to Snubber diode reverse recovery so that the external RC filtering on sense input is no longer required. The current limit comparator is disabled and thus cannot turn off the external MOSFET during the blanking period. PWM duty cycle is determined by the current sense input voltage and the FB input voltage.•Internal Synchronized Slope Compensation Built-in slope compensation circuit adds voltage ramp onto the current sense input voltage for PWM generation. This greatly improves the close loop stability at CCM and prevents the sub-harmonic oscillation and thus reduces the output ripple voltage.•Gate DriveOB2263 Gate is connected to an external MOSFET gate for power switch control. Too weak the gate drive strength results in higher conduction and switch loss of MOSFET while too strong gate drive output compromises the EMI.A good tradeoff is achieved through the built-in totem pole gate design with right output strength and dead time control. The low idle loss and good EMI system design is easier to achieve with this dedicated control scheme. An internal 18V clamp is added for MOSFET gate protection at higher than expected VDD input.Current Mode PWM Controllerm kw k c om• Protection ControlsGood power supply system reliability is achieved with its rich protection features including Cycle-by-Cycle current limiting (OCP), Over Load Protection (OLP) and over voltage clamp, Under Voltage Lockout on VDD (UVLO).With On-Bright Proprietary technology, the OCP threshold tracks PWM Duty cycles and is line voltage compensated to achieve constant output power limit over the universal input voltage range with recommended reference design.At overload condition when FB input voltage exceeds power limit threshold value for more than TD_PL, control circuit reacts to shut down the output power MOSFET. Device restarts when VDD voltage drops below UVLO limit.VDD is supplied by transformer auxiliary winding output. It is clamped when VDD is higher than threshold value. The power MOSFET is shut down when VDD drops below UVLO limit and device enters power on start-up sequence thereafter.PACKAGE MECHANICAL DATASOT23-68-Pin Plastic DIP8-Pin Plastic SOPIMPORTANT NOTICERIGHT TO MAKE CHANGESOn-Bright Electronics Corp. reserves the right to make corrections, modifications, enhancements, improvements and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.WARRANTY INFORMATIONOn-Bright Electronics Corp. warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with its standard warranty. Testing and other quality control techniques are used to the extent it deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed.On-Bright Electronics Corp. assumes no liability for application assistance or customer product design. Customers are responsible for their products and applications using On-Bright’s components, data sheet and application notes. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards.LIFE SUPPORTOn-Bright Electronics Corp.’s products are not designed to be used as components in devices intended to support or sustain human life. On-bright Electronics Corp. will not be held liable for any damages or claims resulting from the use of its products in medical applications.MILITARYOn-Bright Electronics Corp.’s products are not designed for use in military applications. On-Bright Electronics Corp. will not be held liable for any damages or claims resulting from the use of its products in military applications.。

ob6683cgpa规格书

ob6683cgpa规格书英文回答：OB6683CGPA Specification.Introduction:The OB6683CGPA specification outlines the requirements and standards for the OB6683CGPA product. Thisspecification aims to provide a detailed description of the product's features, functionality, and performance expectations. In this response, I will discuss the key aspects of the OB6683CGPA specification and provide examples to illustrate its application.Product Features:The OB6683CGPA is a versatile and high-performance device that offers a range of features to meet the needs of users. It is equipped with advanced technology andinnovative design elements. Some of its notable features include:1. High-resolution display: The OB6683CGPA boasts a vibrant and sharp display, allowing users to enjoy crystal-clear visuals and an immersive viewing experience.2. Powerful processor: With a state-of-the-art processor, the OB6683CGPA delivers lightning-fast performance, enabling seamless multitasking and smooth operation of resource-intensive applications.3. Extensive storage capacity: The OB6683CGPA offers ample storage space, allowing users to store a large amount of data, including photos, videos, and documents, without worrying about running out of space.4. Advanced camera system: The OB6683CGPA is equipped with a high-quality camera system, enabling users to capture stunning photos and videos with exceptional clarity and detail.Performance Expectations:The OB6683CGPA is designed to deliver exceptional performance across various tasks and applications. Its powerful hardware and optimized software ensure smooth and efficient operation. Some performance expectations for the OB6683CGPA include:1. Fast and responsive user interface: The OB6683CGPA provides a seamless user experience with its quick and responsive interface. Users can navigate through menus, open applications, and perform tasks without any lag or delay.2. Smooth gaming experience: The OB6683CGPA is capable of handling graphically demanding games with ease. Users can enjoy a smooth and immersive gaming experience without experiencing any frame drops or stuttering.3. Efficient multitasking: The OB6683CGPA allows users to run multiple applications simultaneously without compromising performance. Users can switch between appsseamlessly and enjoy a seamless multitasking experience.4. Long battery life: The OB6683CGPA is equipped with a high-capacity battery that provides extended usage time. Users can enjoy using the device for extended periodswithout worrying about frequent recharging.中文回答：OB6683CGPA规格书。

开关环路设计与计算

开关电源系统基本组成部分(Voltage Mode PWM System)开关电源环路分析和设计流程开关电源环路的小信号传函FlybackTL431Power StageFlyback PWM Stage右半平面零点PWM Stage()t d)+考虑斜率补偿后的考虑斜率补偿后的考虑斜率补偿后的考虑斜率补偿后的考虑斜率补偿后的DCM模式下电流模式与电压模式的直观理解()(O V D V D =−−1()(v d V V vI L 1ˆˆˆ−−+=()D I I L O −=1dI i L O ˆˆ−=电压模式的信号流程图(siˆ电流模式的信号流程图零极点对环路稳定性的影响及环路带宽选择标准环路的补偿方法把控制带宽拉低，在功率部分或加有其他补偿的部分相位达环路的补偿方法常用的补偿方式.补偿网络产生一个s=0(DC)极点，而且通常所以补偿网络需补偿网络的高频极点抵消输出滤波电容的ESR零点。

环路的补偿方法复杂，适用于输出带LC滤波的拓扑结构中.补偿网络产生一个s=0(DC)极点，以及两个零点和两个极点，反激变换器反馈回路的设计采用补偿方法Power Stage GainOB2263 控制芯片内部模块图OB2263OB2263基于OB2263的基于OB2263的基于OB2263的基于OB2263的5) 确定EA补偿网络的零点和极点的位置基于OB2263的基于OB2263的附录: 431及其补偿网络传函的推导6KR I v ⋅−=Thank you Any Questions？。

因为OB2263直接驱动时只适合做到36W左右为了降低成本很多

因为OB2263直接驱动时，只适合做到36W左右，为了降低成本，很多工程师在实际应用中，都加上了图腾柱驱动，那么，什么是图腾柱驱动呢？在实际应用中有会有什么问题呢？由于此结构画出的电路图有点儿象印第安人的图腾柱（图中左下角的照片），所以叫图腾柱式输出（也叫图腾式输出）。

输出级分别采用一个NPN型晶体管和一个PNP型晶体管。

NPN管集电极接正电源（或接地），发射极接下面PNP管的发射极，同时输出；PNP管的集电极接地（或负电源）。

两管的基极同时接前级的控制端。

就是上下两个输出管，从直流角度看是串联，而从交流看是并联，两管发射极连接处为输出端，实际是一对射极跟随器。

追随输入电平，上管导通、下管截止输出高电平，下管导通、上管截止输出低电平，如果上下两管均截止则输出为高阻态。

在开关电源中，类似的电路常称为“半桥”。

1.不就是OUT高位时，上三极管导通，下三极管关断，Rgate接上Vdrv，MOS开通，OUT低位时，反过来，Rgate接地，MOS关断。

2.输出极采用一个上电阻接一个NPN型晶体管的集电极,这个管子的发射极接下面管子的集电极同时输出;下管的发射极接地.两管的基极分别接前级的控制.就是上下两个输出管,从直流角度看是串联,两管联接处为输出端.上管导通下管截止输出高电平,下管导通上管截止输出低电平,如果电路逻辑可以上下两管均截止则输出为高阻态.其实也是用NPN和PNP管子的搭配使用，当上升沿的时候NPN工作打开，当下降沿的时候PNP工作关闭，依次循环。

3.这个电路看似简单，其实用起来要考虑的还比较多，简单谈谈个人的看法，先声明一下，只是随手总结，可能有不对或不足之处，1）首先要确定的是你需要多少的驱动能力？要驱动的负载（一般可认为是功率管）有多少？以MOSFET为例，驱动其实就是对MOS的门级电容的充放电，这就要考虑你有几个MOS并联，门级电容有多大？MOS的Rg 有多大，加上驱动回路寄生电感等，其实就是一个LRC串联回路。

OB2263

GENERAL DESCRIPTIONOB2263 is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flybackconverter applications in sub 30W range.PWM switching frequency at normal operation is externally programmable and trimmed to tight range.At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching loss.Lower standby power and higher conversion efficiency is thus achieved.VDD low startup current and low operating currentcontribute to a reliable power on startup design with OB2263. A large value resistor could thus be used in the startup circuit to minimize the standby power.The internal slope compensation improves system large signal stability and reduces the possible sub-harmonic oscillation at high PWM duty cycle output.Leading-edge blanking on current sense(CS) inputremoves the signal glitch due to snubber circuit diodereverse recovery and thus greatly reduces the externalcomponent count and system cost in the design.OB2263 offers complete protection coverage withautomatic self-recovery feature including Cycle-by-Cycle current limiting (OCP), over load protection(OLP), VDD over voltage clamp and under voltagelockout (UVLO). The Gate-drive output is clamped to maximum 18V to protect the power MOSFET. Excellent EMI performance is achieved with On-Bright proprietary frequency shuffling technique together with soft switching control at the totem pole gate drive output. Tone energy at below 20KHZ is minimized in the design and audio noise is eliminated during operation. OB2263 is offered in SOT23-6, SOP-8 and DIP-8 packages.FEATURES ■ On-Bright Proprietary Frequency ShufflingTechnology for Improved EMI Performance. ■ Extended Burst Mode Control For ImprovedEfficiency and Minimum Standby Power Design ■ Audio Noise Free Operation■ External Programmable PWM Switching Frequency ■ Internal Synchronized Slope Compensation■ Low VDD Startup Current and Low OperatingCurrent (1.4mA) ■ Leading Edge Blanking on Current Sense Input■ Good Protection Coverage With Auto Self-Recovery o VDD Over Voltage Clamp and Under Voltage Lockout with Hysteresis (UVLO) o Gate Output Maximum Voltage Clamp (18V) o On-Bright Proprietary Line Input Compensated Cycle-by-Cycle Over-current Threshold Setting For Constant Output Power Limiting OverUniversal Input Voltage Range. o Overload Protection (OLP) APPLICATIONS Offline AC/DC flyback converter for■ Battery Charger ■ Power Adaptor ■ Set-Top Box Power Supplies■ Open-frame SMPSTYPICAL APPLICATIONGENERAL INFORMATIONPin ConfigurationThe OB2263 is offered in SOT23-6, DIP8 and SOP8 packages, shown as below.Ordering Information Part Number DescriptionOB2263MP SOT23-6, Pb-free OB2263AP DIP8, Pb-free OB2263CP SOP8, Pb-freePackage Dissipation RatingPackageR θJA (°C/W)DIP8 90 SOP8 150SOT23-6200Absolute Maximum RatingsParameter Value VDD DC Supply Voltage 30 VVDD Zener Clamp VoltageNoteVDD_Clamp+0.1VVDD DC Clamp Current 10 mA V FB Input Voltage -0.3 to 7V V SENSE Input Voltage to Sense Pin-0.3 to 7V V RI Input Voltage to RI Pin -0.3 to 7V Min/Max Operating Junction Temperature T J -20 to 150 o C Min/Max Storage Temperature T stg-55 to 160 o C Note: VDD_Clamp has a nominal value of 34V.Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute maximum-rated conditions for extended periods may affect device reliability.Marking InformationTERMINAL ASSIGNMENTSPin Name I/O DescriptionGroundGND PFB I Feedback input pin. The PWM duty cycle is determined by voltage level into this pin and SENSE pin input.RI I Internal Oscillator frequency setting pin. A resistor connected between RI and GND sets the PWM frequency.SENSE I Current sense input pin. Connected to MOSFET current sensing resistor node.VDD P Chip DC power supply pin.GATE O Totem-pole gate drive output for the power MOSFET.RECOMMENDED OPERATING CONDITIONUnit Symbol Parameter MinMaxVDD VDD Supply Voltage 10 to 30 VRI RI Resistor Value 100 KohmT A Operating Ambient Temperature -20 to 85 o CBLOCK DIAGRAMELECTRICAL CHARACTERISTICS(T A = 25O C if not otherwise noted)Symbol Parameter Test Conditions Min Typ Max Unit Supply Voltage (VDD) I_VDD_Startup VDD Start up Current VDD =12.5V, RI=100K Measure Leakage currentinto VDD3 20 uAI_VDD_Ops Operation Current VDD =16V,RI=100Kohm, V FB =3V1.4 mA UVLO(ON) VDD Under Voltage Lockout Enter7.8 8.8 9.8 VUVLO(OFF) VDD Under Voltage Lockout Exit (Recovery)13 14 15 VVDD_Clamp VDD Zener Clamp VoltageI VDD = 5 mA 34 VFeedback Input Section(FB Pin)A VCS PWM Input Gain ΔV FB /ΔV cs2.0 V/V V FB_Open V FB Open Loop Voltage4.8 VI FB _Short FB pin short circuit current Short FB pin to GND and measure current1.2 mAV TH _0D Zero Duty Cycle FB Threshold Voltage VDD = 16V, RI=100Kohm0.75 VV TH _PL Power Limiting FB Threshold Voltage3.7 VT D _PL Power limiting Debounce Time35 mSecZ FB _IN Input Impedance 6 Kohm DC_MAX Maximum Duty Cycle VDD=18V, RI=100Kohm, FB=3V,CS=075 %Current Sense Input(Sense Pin) T_blanking Leading edge blanking timeRI = 100 Kohm 300 nsZ SENSE _IN Input Impedance 40 Kohm T D _OC Over Current Detection andControl DelayVDD = 16V, CS>V TH _OC, FB=3.3V 75 nSecV TH _OC Over CurrentThreshold Voltage at zero Duty CycleFB=3.3V, RI=100 Kohm 0.70 0.75 0.80 V Oscillator F OSC Normal Oscillation FrequencyRI = 100 Kohm 60 65 70 KHZ∆f_TempFrequency Temperature Stability VDD = 16V, RI=100Kohm, T A -20oCto 100 o C5 % ∆f_VDDFrequency Voltage Stability VDD = 12-25V, RI=100Kohm5 % RI_range Operating RI Range 50 100 150 Kohm V_RI_open RI open load voltage 2 VF osc_BM Burst Mode BaseFrequency VDD = 16V, RI =100Kohm22 KHZGate Drive OutputVOL Output Low Level VDD = 16V, Io = -20 mA0.8 V VOH Output High Level VDD = 16V, Io = 20 mA 10 VV_Clamp OutputClampVoltage Level 18VT_r Output Rising Time VDD = 16V, CL = 1nf 220 nSec T_f Output Falling Time VDD = 16V, CL = 1nf 70 nSec Frequency Shuffling∆f_OSC FrequencyModulation range/Base frequencyRI=100K -33%f_shuffling Shuffling Frequency RI=100K 64 HZUVLO(ON) vs Temp8.08.28.48.68.89.0-20104070100130Temp(C)U V L O (O N ) (V )OPERATION DESCRIPTIONThe OB2263 is a highly integrated PWM controller IC optimized for offline flyback converter applications in sub 30W power range. The extended burst mode control greatly reduces the standby power consumption and helps the design easily meet the international power conservation requirements.•Startup Current and Start up Control Startup current of OB2263 is designed to be very low so that VDD could be charged up above UVLO threshold level and device starts up quickly. A large value startup resistor can therefore be used to minimize the power loss yet provides reliable startup in application. For AC/DC adaptor with universal input range design, a 2 MΩ, 1/8 W startup resistor could be used together with a VDD capacitor to provide a fast startup and low power dissipation solution.•Operating CurrentThe Operating current of OB2263 is low at 1.4mA. Good efficiency is achieved with OB2263 low operating current together with extended burst mode control features.•Frequency shuffling for EMI improvement The frequency Shuffling/jittering (switching frequency modulation) is implemented in OB2263. The oscillation frequency is modulated with a random source so that the tone energy is spread out. The spread spectrum minimizes the conduction band EMI and therefore reduces system design challenge.•Extended Burst Mode OperationAt zero load or light load condition, majority of the power dissipation in a switching mode power supply is from switching loss on the MOSFET transistor, the core loss of the transformer and the loss on the snubber circuit. The magnitude of power loss is in proportion to the number of switching events within a fixed period of time. Reducing switching events leads to the reduction on the power loss and thus conserves the energy.OB2263 self adjusts the switching mode according to the loading condition. At from no load to light/medium load condition, the FB input drops below burst mode threshold level. Device enters Burst Mode control. The Gate drive output switches only when VDD voltage drops below a preset level and FB input is active to output an on state. Otherwise the gate drive remains at off state to minimize the switching loss and reduces the standby power consumption to the greatest extend. The frequency control also eliminates the audio noise at any loading conditions.•Oscillator OperationA resistor connected between RI and GND sets the constant current source to charge/discharge the internal cap and thus the PWM oscillator frequency is determined. The relationship between RI and switching frequency follows the below equation within the specified RI in Kohm range at nominal loading operational condition.)()(6500KhzKohmRIFOSC=•Current Sensing and Leading Edge Blanking Cycle-by-Cycle current limiting is offered in OB2263 current mode PWM control. The switch current is detected by a sense resistor into the sense pin. An internal leading edge blanking circuit chops off the sense voltage spike at initial MOSFET on state due to Snubber diode reverse recovery so that the external RC filtering on sense input is no longer required. The current limit comparator is disabled and thus cannot turn off the external MOSFET during the blanking period. PWM duty cycle is determined by the current sense input voltage and the FB input voltage.•Internal Synchronized Slope Compensation Built-in slope compensation circuit adds voltage ramp onto the current sense input voltage for PWM generation. This greatly improves the close loop stability at CCM and prevents the sub-harmonic oscillation and thus reduces the output ripple voltage.•Gate DriveOB2263 Gate is connected to an external MOSFET gate for power switch control. Too weak the gate drive strength results in higher conduction and switch loss of MOSFET while too strong gate drive output compromises the EMI.A good tradeoff is achieved through the built-in totem pole gate design with right output strength and dead time control. The low idle loss and good EMI system design is easier to achieve with this dedicated control scheme. An internal 18V clamp is added for MOSFET gate protection at higher than expected VDD input.•Protection ControlsGood power supply system reliability is achieved with its rich protection features including Cycle-by-Cycle current limiting (OCP), Over Load Protection (OLP) and over voltage clamp, Under Voltage Lockout on VDD (UVLO).With On-Bright Proprietary technology, the OCP threshold tracks PWM Duty cycles and is line voltage compensated to achieve constant output power limit over the universal input voltage range with recommended reference design. At overload condition when FB input voltage exceeds power limit threshold value for more than TD_PL, control circuit reacts to shut down the output power MOSFET. Device restarts when VDD voltage drops below UVLO limit.VDD is supplied by transformer auxiliary winding output. It is clamped when VDD is higher than threshold value. The power MOSFET is shut down when VDD drops below UVLO limit and device enters power on start-up sequence thereafter.PACKAGE MECHANICAL DATA SOT23-68-Pin Plastic DIP8-Pin Plastic SOP。

昴宝OB2263PDF详细文档

OB2263
Current Mode PWM ControllerFrequency Shuffling
Tone energy at below 20KHZ is minimized in the
GENERAL DESCRIPTION
design and audio noise is eliminated during operation.
OB2263AP
DIP8, Pb-free
The OB2263 is offered in SOT23-6, DIP8 and SOP8
OB2263CP
SOP8, Pb-free
packages, shown as below.
Package Dissipation Rating
Package
RθJA
Cycle-by-Cycle Over-current Threshold Setting
rFor Constant Output Power Limiting Over aUniversal Input Voltage Range. Cho Overload Protection (OLP)
lockout (UVLO). The Gate-drive output is clamped to maximum 18V to protect the power MOSFET.
-0.3 to 7V -20 to 150 oC
r Temperature TJ a Min/Max Storage Temperature -55 to 160 oC
hTstg CNote: Stresses beyond those listed under “absolute maximum

开关电源芯片HT2263、2269的基本运用(1)

设备，电子产品，照明产品等等，目前在中国市场上做得最多的是照明产品，包括节能灯(CFL，灯具(RLF)，交通信号灯和出口指示灯。目前全球计有七个国家参与美国环保署推动的能源之星计划，分别为美国、加拿大、日本、台湾、澳洲、新西兰、欧盟。
对于小型开关电源的标准如下：
Foxit PDF Document
二、开关电源的概念开关电源就是用通过电路控制开关管进行高速的导通与截止．将直流电转换为高频率的交流电提供给变压器进行变压，从而产生所需要的一组或多组电压的电源。 1、开关电源主要有以下特点：（1）.体积小、重量轻：由于没有工频变压器，所以体积和重量只有线性电源的20～30%。（2）.功耗小、效率高：功率晶体管工作在开关状态，所以晶体管上的功耗小，转化效率高，一般为60～70%，而线性电电源只有30～40%。
五、我们公司的AC-DC产品
产品型号 SP3706 SP3842 SP3843 SP7500 TL494 VIPER22A HT202 HT203 HT2262 HT2263 HT2268 HT2269 功能 PWM PWM PWM PWM PWM PWM+MOSFET PWM+三级管 PWM+三级管 PWM PWM PWM PWM Vin(AC) 85-264V 85-264V 85-264V 85-264V 85-264V 85-264V 85-264V 85-264V 85-264V 85-264V 85-264V 85-264V Vdd 4.8-5.3V 10－30V 10-30V 7-40V 7-40V 9-38V 4.8-9V 4.8-10V 11-30V 11-30V 12-23V 12-23V 启动电流 70uA 0.5mA 0.5mA 1mA 2.4mA 2.4mA 3uA 3uA 6.5uA 6.5uA 输出最大电振荡频率流/功率 10W 1A 1A 200mA 200mA 20W 5W 18W 30W 30W 100W 100W Adaptive 500KHz 500KHz 300KHz 300KHz 60KHz 66KHz 66KHz 65KHz 65KHz 65KHz 65KHz 封装 SOIC-8 SOIC-8 DIP8 SOIC-8 DIP8 SOIC-16 DIP-16 SOIC-16 DIP-16 DIP-8 DIP-8 DIP-8 SOT23-6 SOT23-6 SOIC-8 DIP8 SOIC-8 DIP8 备注

昂宝-OB2535规格书

MBr i d e ch n ol o gy Co .,Lt d .OB2535High Precision CC/CV Primary-Side PWM Power SwitchGENERAL DESCRIPTIONOB2535 is a high performance offline PWM Power switch for low power AC/DC charger and adaptor applications. It operates in primary-side sensing and regulation. Consequently, opto-coupler and TL431 could be eliminated. Proprietary Constant Voltage (CV) and Constant Current (CC) control is integrated as shown in the figure below.In CC control, the current and output power setting can be adjusted externally by the sense resistor Rs at CS pin. In CV control, multi-mode operations are utilized to achieve high performance and high efficiency. In addition, good load regulation is achieved by the built-in cable drop compensation. Device operates in PFM in CC mode as well at large load condition and it operates in PWM with frequency reduction at light/medium load.OB2535 offers power on soft start control and protection coverage with auto-recovery features including Cycle-by-Cycle current limiting, VDD OVP, VDD clamp and UVLO. Excellent EMI performance is achieved with On-Bright proprietary frequency shuffling technique.High precision constant voltage (CV) and constant current (CC) can be achieved by OB2535. .Fig.1. Typical CC/CV CurveFEATURES5% Constant Voltage Regulation, 5% ConstantCurrent Regulation at Universal AC input Primary-side Sensing and Regulation WithoutTL431 and Opto-couplerProgrammable CV and CC RegulationAdjustable Constant Current and Output PowerSettingBuilt-in Secondary Constant Current Controlwith Primary Side FeedbackBuilt-in Adaptive Current Peak Regulation Built-in Primary winding inductancecompensationProgrammable Cable drop Compensation Power on Soft-startBuilt-in Leading Edge Blanking (LEB) Cycle-by-Cycle Current LimitingVDD Under Voltage Lockout with Hysteresis(UVLO) VDD OVP VDD ClampAPPLICATIONSLow Power AC/DC offline SMPS for Cell Phone ChargerDigital Cameras Charger Small Power AdaptorAuxiliary Power for PC, TV etc. Linear Regulator/RCC ReplacementOB2535 is offered in SOP8 package.TYPICAL APPLICATIONM icr oBge Te ch n ol o gy Co .,Lt d .OB2535High Precision CC/CV Primary-Side PWM Power SwitchGENERAL INFORMATIONPin ConfigurationThe pin map is shown as below for SOP8VDD COMP INVCSGND GNDOrdering Information Part Number Description OB2535CP SOP8, Pb-free, Tube OB2535CPA SOP8, Pb-free, T&RPackage Dissipation Rating Package R θJA (℃/W) SOP8 90Note: Drain Pin Connected 100mm 2 PCB copper clad.Absolute Maximum RatingsParameter Value Drain Voltage (off state) -0.3V to Bvdss VDD Voltage -0.3 to V DD _clamp VDD Zener Clamp Continuous Current 10 mA COMP Voltage -0.3 to 7V CS Input Voltage -0.3 to 7V INV Input Voltage -0.3 to 7V Min/Max Operating Junction Temperature T J -20 to 150 o C Min/Max Storage Temperature T stg -55 to 150 o C Lead Temperature (Soldering, 10secs) 260 o CNote: Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute maximum-rated conditions for extended periods may affect device reliability.M ic r oBr id ge Te ch nol o gy Co .,Lt d .OB2535High Precision CC/CV Primary-Side PWM Power SwitchMarking InformationOB2535CP YWWSC:SOP8 Package P:Pb-free Package Y:Year Code(0-9)WW:Week Code(01-52)S:Internal Code(Optional)TERMINAL ASSIGNMENTSPin Num Pin Name I/O Description 1 VDD P Power Supply 2 COMP I Loop Compensation for CV Stability3 INV I The voltage feedback from auxiliary winding. Connected to resistor dividerfrom auxiliary winding reflecting output voltage. PWM duty cycle isdetermined by EA output and current sense signal at pin 4.4 CS I Current sense input5/6 DRAIN OHV MOSFET Drain Pin. The Drain pin is connected to the primary lead ofthe transformer7/8 GND P GroundOUTPUT POWER TABLE230VAC±15% 85-264VAC Product Adapter 1 Adapter 1OB2535 6W 5WNotes:1.Maximum practical continuous power in an Adapter design with sufficient drain pattern as a heat sink, at 50℃ ambient.M ic r oBr i d geBLOCK DIAGRAMM ic r oBr i d ge Te ch n ol o gy Co .,Lt d .ELECTRICAL CHARACTERISTICS(T A = 25O C, VDD=VDDG=16V, if not otherwise noted)Symbol Parameter Test Conditions Min Typ Max UnitSupply Voltage (VDD) Section I DD ST Standby Current VDD=13V5 20uA I DD op Operation CurrentOperation supply current INV=2V, CS=0V,VDD=VDDG=20V- 2.5 3.5 mAUVLO(ON) VDD Under Voltage Lockout Enter VDD falling 7.5 8.5 10V UVLO(OFF) VDD Under Voltage Lockout Exit VDD rsing13.5 14.5 16.0V V DD _clamp Maximum VDD operationvoltageI DD =10mA30.5 32.5 34．5V OVPOver voltage protection ThresholdRamp VDD until gate shut down27.5 29.5 31.5V Current Sense Input SectionTLEB LEB time540 ns Vth_oc Over current threshold870 900 930 mVTd_oc OCP Propagation delay150 ns Z SENSE _IN Input Impedance50 KohmT_ssSoft start time10msFrequency SectionFreq_Max Note 1 IC Maximum frequency66 72 78 KHzFreq_NomSystem Nominal switch frequency60KHzFreq_startup INV =0V, Comp =5V 14 KHz △f/FreqFrequency shuffling range+/-4% Error Amplifier section Vref_EA Reference voltage for EA 1.972 2.03 V GainDC gain of EA60 dB I_COMP_MAXMax. Cable compensationcurrentINV=2V, Comp=0V42uAPower MOSFET Section BVdss MOSFET Drain-Source Breakdown Voltage 600 V RdsonOn ResistanceStatic, Id=0.4A1215ΏNote:1. Freq_Max indicates IC internal maximum clock frequency. In system application, the maximum operation frequency of 60Khz nominal occurs at maximum output power or the transition point from CV to CC.M ic r oBr i d g e T en t CHARACTERIZATION PLOTSM ic r oBr i d ge Te c.,Lt d .OPERATION DESCRIPTIONOB2535 is a cost effective PWM power switch optimized for off-line low power AC/DC applications including battery chargers and adaptors. It operates in primary side sensing and regulation, thus opto-coupler and TL431 are not required. Proprietary built-in CV and CC control can achieve high precision CC/CV control meeting most adaptor and charger application requirements.z Startup Current and Start up ControlStartup current of OB2535 is designed to be very low so that VDD could be charged up above UVLO threshold and starts up quickly. A large value startup resistor can therefore be used to minimize the power loss in application.z Operating CurrentThe Operating current of OB2535 is as low as 2.5mA. Good efficiency is achieved with the low operating current together with ‘Muti-mode’ control features.z Soft StartOB2535 features an internal soft start to minimize the component electrical over-stress during power on startup. As soon as VDD reaches UVLO (OFF), the control algorithm will ramp peak current voltage threshold gradually from nearly zero to normal setting of 0.90V. Every restart is a soft start.z CC/CV OperationOB2535 is designed to produce good CC/CV control characteristic as shown in the Fig. 1.In charger applications, a discharged battery charging starts in the CC portion of the curve until it is nearly full charged and smoothly switches to operate in CV portion of the curve.In an AC/DC adapter, the normal operation occurs only on the CV portion of the curve. The CC portion provides output current limiting. In CV operation, the output voltage is regulated through the primary side control. In CC operation mode, OB2535 will regulate the output current constant regardless of the output voltage drop.z Principle of OperationTo support OB2535 proprietary CC/CV control, system needs to be designed in DCM mode for flyback system (Refer to Typical Application Diagram on page1).In the DCM flyback converter, the output voltage can be sensed via the auxiliary winding. During MOSFET turn-on time, the load current is supplied from the output filter capacitor Co. The current inthe primary winding ramps up. When MOSFET turns off, the primary current transfers to the secondary at the amplitude ofP SPS I N N I ⋅=（1） The auxiliary voltage reflects the output voltage as shown in fig.2 and it is given by)(V V N N V O SAUXAUX Δ+⋅=(2) Where ΔV indicates the drop voltage of the output Diode.Fig.2. Auxiliary voltage waveformVia a resistor divider connected between the auxiliary winding and INV (pin 3), the auxiliary voltage is sampled at the end of the de-magnetization and it is hold until the next sampling. The sampled voltage is compared with Vref (2.0V) and the error is amplified. The error amplifier output COMP reflects the load condition and controls the PWM switching frequency to regulate the output voltage, thus constant output voltage can be achieved.When sampled voltage is below Vref and the error amplifier output COMP reaches its maximum, the switching frequency is controlled by the sampled voltage thus the output voltage to regulate the output current, thus the constant output current can be achieved.z Adjustable CC point and Output PowerIn OB2535, the CC point and maximumoutput power can be externally adjusted by external current sense resistor Rs at CS pin as illustrated in Typical Application Diagram. The output power is adjusted through CC point change. The larger Rs, the smaller CC point is, and the smaller output power becomes, and vice versa as shown in Fig.3.M ic r oBr i d ge Te ch n ol o gy Co .,Lt d .Fig.3 Adjustable output power by changing Rsz Operation switching frequencyThe switching frequency of OB2535 is adaptively controlled according to the load conditions and the operation modes. No external frequency setting components are required. The operation switching frequency at maximum output power is set to 60K Hz internally.For flyback operating in DCM, The maximum output power is given by221pSW P MAX I F L Po =(3) Where Lp indicate the inductance of primary winding and Ip is the peak current of primary winding.Refer to the equation 3, the change of the primary winding inductance results in the change of the maximum output power and the constant output current in CC mode. To compensate the change from variations of primary winding inductance, the switching frequency is locked by an internal loop such that the switching frequency isDemagSW T F 21=(4)Since T Demag is inversely proportional to the inductance, as a result, the product Lp and fsw is constant, thus the maximum output power and constant current in CC mode will not change as primary winding inductance changes. Up to +/-10% variation of the primary winding inductance can be compensated.z Frequency shuffling for EMI improvement The frequency shuffling (switching frequency modulation) is implemented in OB2535. The oscillation frequency is modulated so that the tone energy is spread out. The spread spectrum minimizes the conduction band EMI and therefore eases the system design.z Gate DriveThe internal power MOSFET in OB2535 is driven by a dedicated gate driver for power switch control. Too weak the gate drive strength results in higher conduction and switch loss of MOSFET while too strong gate drive compromises EMI.A good tradeoff is achieved through the built-in totem pole gate design with right output strength control.z Programmable Cable drop CompensationIn OB2535, cable drop compensation is implemented to achieve good load regulation. An offset voltage is generated at INV by an internal current flowing into the resister divider. The current is inversely proportional to the voltage across pin COMP, as a result, it is inversely proportional to the output load current, thus the drop due to the cable loss can be compensated. As the load current decreases from full-load to no-load, the offset voltage at INV will increase. It can also be programmed by adjusting the resistance of the divider to compensate the drop for various cable lines used.z Protection ControlGood power supply system reliability is achieved with its rich protection features including Cycle-by-Cycle current limiting (OCP), VDD clamp, Power on Soft Start, and Under Voltage Lockout on VDD (UVLO).VDD is supplied by transformer auxiliary winding output. The output of OB2535 is shut down when VDD drops below UVLO (ON) limit and Switcher enters power on start-up sequence thereafter.M ic r oBr i d ge Te ch n ol o gy Co .,Lt d .PACKAGE MECHANICAL DATADimensions In Millimeters Dimensions In InchesSymbolMin Max Min MaxA 1.350 1.750 0.053 0.069 A1 0.050 0.250 0.002 0.010 A2 1.250 1.650 0.049 0.065 b 0.310 0.510 0.012 0.020 c 0.170 0.250 0.006 0.010D 4.700 5.150 0.185 0.203E 3.800 4.000 0.150 0.157 E1 5.800 6.200 0.228 0.244 e 1.270 (BSC) 0.05 (BSC)L 0.400 1.270 0.016 0.050 θ 0º 8º 0º 8º。

OB2263 OB2263 设计指导

，可以为系统节省了一个外部的R-C网络，2. OB2263内部模块图On -B ri g h tc o nf i de nt i al to Ma x i wo rl d三．典型应用电路：端各电压门限相对应的系统工作状态为系统在空载或轻载时工作在间歇模式下的为环路开环，过功率保护或短路保护时FB 的短路电流典型值为采用传统的电流模式结构设计，其关断时间根据峰值电流调整，通过与主开关管转化成电压反馈到具有如下关系式：端的电压。

与主开关管MOSFET 源极相连接的电流反馈电阻阻值的时间(f=65KHz)或VF 止输出脉冲，保证整个系统的安全。

时系统工作在间歇工作模式，如果系统出现可听及的异音，请先检查系统是否工作正常，如果你确认无误，请检查系统缓冲吸收回路中的电容材质，如果使用的是普通压电陶瓷电容，那么当系统工作在间歇工作状态时电容由于发生压电效应而产生异音是很可能的。

这时，请更换电容的材质，如电容；考虑成本及电容体积大小的因素，我们推荐使用果的前提下可以通过调整缓冲吸收回路中的电阻阻值来减少该电容的值有利于缩小电容体积及降低系统成本，例如2200PF/250V ，4700PF/250V 当系统工作在满载的情况下如果系统出现可听及的异音时，如果你确认无误，请检查芯片的FB 端的电压波形是否较平滑，如果发现较大的干扰请检PCB layout 是否合理，对于较小的干扰可通过外加滤波网络进行抑制，如图中组成的低通滤波器，FB ，FB 的取值不宜过大，根据系统的实际情况，R FB 可以为。

R ，C 的取值会影响系统的环路稳定，一般4700PF 电路，可以为系统节省一个外部的流反馈信号前沿噪声干扰持续时间超过芯片内置的前沿消隐tc o nf i de nt i al。

A2263规格书

Value Symbol Parameter Conditions Min. Supply Voltage(V dd Pin) Idd_startup Idd current VDD under voltage UVLO(ON) lockout enter VDD under voltage UVLO(OFF) lockout exit VDD zener clamp VDD_clamp voltage Voltage Feedback (FB Pin) AVCS VFB_open IFB_short VFB_burst VTH_PL PWM input gain VFB open loop voltage Short FB pin to GND and FB pin short current measure current Burst mode voltage Power limiting FB Iout=－ 10mA 1.2 3.7 V V 0.9 mA ΔVFB/Δ VSENSE 2 5.7 V/V V Idd=10mA 32 V 13 14 15 V 7.7 8.8 9.8 V VDD start up current VDD Operation VDD=12.5V,RI=100K VDD=16V RI=100KΩ , FB=3V 2.3 mA 3 15 uA Typ. Max Unit
� � �
� �
�
Applications
� � � � � � Cell Phone Charger Digital Cameras Charger Power adptor Set_frame SMPS Battery charger
Features
� � Proprietary frequency shuffling technology for improved EMI performance. External programmable PWM switching frequency.

OB2263设计电路图

OB2263设计电路图外壳厚2.5-2.6毫米,两侧面长75毫米,去除厚度,PCB的两边不会超过70毫米,假设锡点高2毫米,PCB厚1.6毫米,元件的高度要限制在22毫米左右,由于外壳的弧形结构,四周的元件要矮一点. 算下体积,做个反激24W左右的电源应该可以,就按12V2A做吧.接着应该定个方案了,先选IC,反激这一块可选的IC真是不能再多了,公司里常用的是昂宝这个品牌,这个功率段用OB2263不会有问题,由于体积有点小,优选贴片的,同样很多元件都应该以贴片为主..... 接下来就按OB2263设计电路图..... 完成的原理图,是按OB的典型应用设计的,电脑上没有PDF生成软件,只好截图.... 下面是各部分,输入滤波/整流PWM及VCC供电部分:输出和电压取样部分: 先说下输入滤波/整流部分元件取值估计方法: 重传下这部分电路,方便观看由于PCB的面积较小,而保险要求的距离要2.5毫米以上,为方便布局并节省空间,把保险丝放到输入的最前.假设输出24W,允许最大输出为1.2倍,效率假设为80%,最低输入交流85V,加上只有电容滤波,PF值约0.5,那么输入电流有效值约为IAC=24*1.2/0.8/85/0.5,约等于0.85A; 由于温度降额,开机冲击等原因,这个保险丝取值应该在1A以上,而且保险的作用并不在于保护后面元件的安全,只要求能断开电网,所以取个2A250V的值. 输入端离外壳比较近,元件不能用太高的,X电容用了小体积(约13*12*6)的,容量只有0.1微法,R1,R2为放电电阻,要求断开电源1秒后X电容上的电压降到安全范围内,经计算,1.5M以下完全满足要求,但要满足耐压,还得用二个电阻串联. 接下来是桥堆,按保险丝算出来的电流取就可以,耐压同样要满足,个子也尽量小,用了个KBP206. 共模电感也是按经验用的,40W以下一般是UU9.8,这颗料常见成本也低,考虑到X电容偏小,在桥堆和电感之间加入一个聚酯类的电容,好处是可以做到小体积大容量. 电解电容也是按2微法/W的经验值取,这里用47微法. C1,C7是小容量贴片高压电容,如果做EMI的话可以按需要取舍. 接下来说说PWM部分,原理图如下:。

OB2263 15W demo

© On-Bright Electronics
OB2263 Application Note
15W Adapter Module Design with OB2263
(Preliminary Release)
Key Features Low component count Standby Power ＜ 0.2W Audio noise free operation OCP with line compensation
2
3
பைடு நூலகம்
Figures
Figure 1 Measured ripple& noise waveform@90Vac/60HZ, no load. ....................................................... 12 Figure 2 Measured ripple& noise waveform@90Vac/60HZ, full load. ..................................................... 13 Figure 3 Measured ripple& noise waveform@264Vac/50HZ, no load ...................................................... 14 Figure 4 Measured ripple& noise waveform@264Vac/50HZ, full load .................................................... 15 Figure 5 Measured overshoot waveform@90Vac/60HZ, full load............................................................. 16 Figure 6 Measured overshoot waveform@264Vac/50HZ, full load........................................................... 16 Figure 7 Output voltage waveform of under Dynamic test@264Vac/50HZ,full load................................ 17 Figure 8 Output voltage waveform under Dynamic test@90Vac/60HZ,full load ...................................... 18 Figure 9 Turn on delay time measured waveform@90Vac/60HZ,full load................................................ 19 Figure 10 Turn on delay time measured waveform@240Vac/50HZ,full load............................................ 20 Figure 11 Hold on delay time measured waveform@100Vac/60HZ,full load ........................................... 21 Figure 12 Rise time measured waveform@100Vac/60HZ,full load........................................................... 21 Figure 13. Rise time measured waveform@240Vac/50HZ with full load ................................................. 22 Figure 14 Fall time measured waveform@100Vac/60HZ,full load ........................................................... 22

OB2263 IC对应表

PWM控制IC+内置MOS管电源IC:CR6229T.全新原装现货.由深圳市创明微空间供应:一、CR6221---PWM控制IC,内置高压MOSFET---建议做5W （建议输出电流1.1A内）二、CR6224--- PWM控制IC,内置高压MOSFET---建议做12W内（建议输出电流2.1A内）三、CR6228--- PWM控制IC,内置高压MOSFET---建议做16W内（建议输出电流2.5A内）四、CR6229--- PWM控制IC,内置高压MOSFET---建议做18W内（建议输出电流3A内）CR622X系列：高集成、低成本，电流模式PWM功率转换芯片，内置650V高压MOSFET,有效简化系统设计，多重完善的保护功能更使您的设计稳定可靠。

采用频率抖动技术有效降低系统EMI;根据负载变化，智能进入PFM/BustMode 模工，降低系统功耗，实现绿色节能。

齐全的产品规格，可满足您0-28W不同的功率要求。

（注0-28W属开放式单电压电流！）BrandPower-rail On-Bright SG LD Power bound PackageItem1CR6850OB2262SG6848LD7550<60WSOT-23-6 OB2263SG6849LD7535DIP-8SG5701Sop-82CR6853OB2262SG6848LD7550<60WSOT-23-6 OB2263SG6849LD7535DIP-8SG5701Sop-83CR6842OB2268/69SG6841LD7552<120WDIP-8 OB2278/79SG6842Sop-84CR6202Thx202/TFC719内置13003三极管6W DIP-85RM6203CR6203Thx203/TFC718内置13003三极管12W DIP-86CR6221内置4A/650V高压MOS管6W DIP-87CR6224OB2353/4内置4A/650V高压MOS管12W DIP-88CR6228OB2358内置4A/650V高压MOS管16W DIP-89CR6229OB2359内置4A/650V高压MOS管18W DIP-810CR6235OB2535原边反馈内置高压MOS管可节省光藕/TL4315W DIP-811CR6236OB2536原边反馈内置高压MOS管可节省光藕/TL4317W DIP-812CR6238OB2538原边反馈内置高压MOS管可节省光藕/TL43112WBrandPower-rail On-Bright SG LD Power bound Package Item1CR6850OB2262SG6848LD7550<60WSOT-23-6 OB2263SG6849LD7535DIP-8SG5701Sop-82CR6853OB2262SG6848LD7550<60WSOT-23-6 OB2263SG6849LD7535DIP-8SG5701Sop-83CR6842OB2268/69SG6841LD7552<120WDIP-8 OB2278/79SG6842Sop-84CR6202Thx202/TFC719内置13003三极管6W DIP-85RM6203CR6203Thx203/TFC718内置13003三极管12W DIP-86CR6221内置4A/650V高压MOS管6W DIP-87CR6224OB2353/4内置4A/650V高压MOS管12W DIP-88CR6228OB2358内置4A/650V高压MOS管16W DIP-89CR6229OB2359内置4A/650V高压MOS管18W DIP-810CR6235OB2535原边反馈内置高压MOS管可节省光藕/TL4315W DIP-811CR6236OB2536原边反馈内置高压MOS管可节省光藕/TL4317W DIP-812CR6238OB2538原边反馈内置高压MOS管可节省光藕/TL43112W。

昂宝电子与茂捷半导体替换型号

昂宝电子与茂捷半导体替换型号
昂宝与茂捷兼容型号
M5573兼容OB2263,OB2273、M5576兼容OB2269(管脚不容）
SSR+外置MOS管，各种保护功能，待机功耗<100mW,抖频功能,65KHz,高性能PWM控制器,过温保护，欠压保护，高性能PWM控制。

SSR电压电流精度高, M5576最大待机功耗〔100mW〕高效率:〔24V5A平均效率>89%〕，轻载，空载无异响声
M5358兼容OB2358
低待机功耗,抖频功能,50KHz,各种保护功能，高性能PWM控制器,SSR性能稳定，动态响应好，输出电压精度高，适用于对电压精度要求高的应用领域
M5832兼容OB2532
PSR+外置MOS，各种保护功能，PSR成本低，节省PCB板上空间，省掉光耦和431,节省成本
M5835兼容OB2535、M5836兼容OB2536、M5838兼容OB2538
PSR内置MOS有线补功能，各种保护功能，PSR成本低，节省PCB板上空间，省掉光耦
和431,节省成本。

OB2263_OB2263_设计指导

与主开关管MOSFET 源极相连接的电流反馈电阻阻值的时间(f=65KHz)或VF 止输出脉冲，保证整个系统的安全。

昂宝OB2263中文规格书

昂宝OB2263中文规格书通用描述：OB2263是一个高度集成的电流模式PWM控制IC，优化了高性能、低待机功耗和低成本有效，用于30W内的离线反激变换器。

正常操作时，PWM开关频率由外部编程并在小范围内调整。

在空载或轻载条件下，IC工作在扩展“burst模式”来减少开关损耗，实现低待机功耗和高转换效率。

VDD低启动电流和低工作电流有助于用OB2263设计一个启动可靠的电源。

一个大的电阻值可以用于启动电路以最小化待机功率。

内部斜率补偿，提高了系统的大信号稳定性，减少高PWM占空比输出时的可能的次谐波振荡。

电流检测输入脚(CS)过滤信号前沿消除了信号的干扰，从而大大降低了设计中的外部元件数量和系统成本。

OB2263提供完整的保护，覆盖自动的自恢复功能，包括逐周期电流限制（OCP），过载保护（OLP），VDD过压钳位和欠压锁定（UVLO）。

栅极驱动输出钳位到最大18V以保护功率MOSFET。

优良的EMI性能的获得是图腾柱式栅极驱动输出基于昂宝的专有的频率抖动技术和软开关控制。

工作时，低于20kHz的音能量被最小化，音频噪声设被消除。

OB2263封装提供SOT23-6、SOP-8和DIP-8。

特征：⏹∙∙昂宝特有频率抖动技术，提升EMI性能。

⏹∙∙扩展“burst模式”提高效率和最小的待机功耗。

⏹∙∙无音频噪音。

⏹∙∙扩展的可编程PWM开关频率。

⏹∙∙内同步斜率补偿。

⏹∙∙低VDD启动电流和工作电流(1.4mA)。

⏹∙∙CS前沿消除。

⏹∙∙覆盖自动自恢复的良好保护：➢∙∙迟滞的VDD过压钳位和欠压锁定（UVLO）。

➢∙∙栅极驱动最大18V锁定。

➢∙∙对于超过通用输入电压的连续输出功率限值，昂宝专有线性输入补偿逐周期过流阈值设定。

➢∙∙过载保护（OLP）。

应用：离线的AC/DC反激式变换器●∙∙∙电池充电器●∙∙∙电源适配器●∙∙∙机顶盒电源●∙∙∙开放式开关电源（SMPS）1 典型应用2 通用信息脚位配置OB2263封装提供SOT23-6、SOP-8和DIP-8，如下图：元件号描述OB2263MP SOT23-6，无铅OB2263AP DIP8，无铅OB2263CP SOP8，无铅9 工作描述OB2263是一个高度集成的PWM控制器IC，针对离线反激变换器做了优化，用于30W以下。

M5573替换GR8837,OB2263,OB2273

描述M5573是一款优化的高性能高集成的用于反激式变换器的电流模式PWM控制芯片，具备低待机功耗和低成本的优点。

正常工作下，PWM开关频率通过外部电阻可调。

在空载或轻载条件下，IC就会工作在“跳周期模式”来减少开关损耗，从而实现低待机功耗和高转换效率的实现。

M5573提供全面的保护，包括自动恢复保护，逐周期电流限制（OCP），过载保护（OLP）、带迟滞功能的VDD欠压保护，和过电压（固定或可调的）保护（OVP）。

M5573频率抖动能实现优良的EMI性能。

M5573在工作中消除了低于20kHz音频噪声的消除。

M5573采用SOT-23-6封装。

典型应用图典型应用图特征软启动功能，减少应力功率MOSFETVDS降低EMI频率抖动功能跳周期模式控制的改进，提高效率降低待机功耗最小功率的备用电源设计消除音频噪声开关频率通过外部电阻可调综合保护性能1.带迟滞功能的VDD欠压保护2.逐周的过流阈值设置，在全电压范围内恒定输出功率3.过载保护（OLP）与自动恢复4.自动恢复的VDD过压保护（OVP）应用领域适用于AC/DC反激式变换器手机充电器,上网本充电器笔记本适配器机顶盒电源各种开放式开关电源引脚功能描述绝对值范围芯片框图应用信息M5573是一款优化的高性能高集成的用于反激式变换器的电流模式PWM控制芯片，具备低待机功耗和低成本的优点，扩展模式大大降低了待机功耗，方案设计适应国际节能的要求。

●启动电流和启动控制M5573启动电流非常低，便于获取高于VDD的UVLO值并迅速启动。

因此，高阻值启动电阻可减少功率损耗，并能在应用中稳定可靠的启动。

●工作电流M5573工作电流低至1.4mA。

跳周期模式与工作电流一起扩展能实现较高效率。

●软启动M5573在通电时触发一个4ms的软启动来降低启动时的应力。

当VDD达到VDD_O，SE尖峰电压由0.15V逐渐升高增至最大。

每次重启后都会重新软启动。

●频率抖动干扰的改进M5573集成了频率抖动（开关频率调制）功能进行扩频，最大限度地降低了EMI带宽，简化了系统设计。

JT3027与OB2263管脚一致PIN-PIN替代方案资料datasheet

恢复造成的感应电压毛刺，因此 SENSE 统可以获得最高可靠性。其中包括逐周期
输入端的外接 RC 滤波电路可以省去。限流保护(OCP)，过载保护(OLP)，低压
限流比较器在消隐期间被禁止而无法关断锁定(UVLO)。JT3027 内置的 OCP 保护
外部 MOSFET。PWM 占空比由电流检电路可以有效地检测 PWM 控制信号的
引脚 1 2 3 4
符号 GATE VDD
NC SENSE
5
RI
6
NC
7
FB
8
GND
极限参数：
引脚类型驱动输出
电源 ― 电流侦测参考设置－
反馈输入
电源
功能说明图腾柱栅极驱动输出引脚。用于驱动外接的 MOSFET开关管。内部具有电压钳位电路(18.5V)。电源。 ― 电流检测反馈输入引脚。连接到MOSFET电流检测电阻端。内部振荡频率设定引脚。RI和GND之间所接的电阻决定芯片的工作频率。－反馈输入引脚。其输入电平值与6脚的电流侦测引脚共同确定PWM控制信号的占空比。如果FB端的输入电压大于某个设定的阈值电压，则内部的保护电路会自动关断PWM输出。电源地。
(Cycle-by-Cycle current limiting)功能。开的钳位电路，有效地保护了外接
关电流通过检测电阻输入到 SENSE 引 MOSFET 开关管。
脚。引脚内部的前沿消隐电路可以消除 ■ 保护控制
MOSFET 开启瞬间由于缓冲二极管反向
JT3027 提供了全面的保护特性，系
CCM 模式下闭环的稳定性，避免了谐波 MOSFET。
振荡，减少了输出纹波电压。
■ 栅极驱动

欧宝COB系列产品数据表说明书

DATA SHEETIntroduction Performance Characteristics Mechanical Dimensions Characteristic Curves ReliabilityPacking Specification PrecautionP 2P 3P 5P 6P 9P 10P 11 CITILED COB SeriesStandard TypeRa90 Min. ModelCLU028-1201C41. Introduction1-1. Product Description1-2. FeaturesCITIZEN ELECTRONICS is the first COB manufacture. Our advanced knowledge and packaging technology for many years has excellent reliability and high quality of our products. CITILED COB Series covers a wide range of luminous flux from a 10W incandescent bulb to a 500W mercury lamp in general lighting sources. The element arrangement of LED package is capable of utilizing light more effectively and higher performance.The new version of CITILED COB Series succeed to reduce the thermal resistance significantly. New version creates more options to match luminaire's products design (ex. High performance , Cost effective , Higher lumen density ,Increased allowable max. If). The outline and LES size is same since version 1. 3-step MacAdam ellipse color definition at Tj=85C is available.・Mechanical Dimensions :13.5×13.5×1.4 (mm)・Package Structure :Aluminum Base Chip on Board ・Reference Assembly :M3 screw, Connector ・CRI (Ra):90 Min.・Nominal CCT :2,700K, 3,000K, 3,500K, 4,000K ・Chromaticity Range :3-step MacAdam Ellipse, the center refers to ANSI C78.377:2011.・Thermal Resistance : 2.6C/W ・Maximum drive current :230mA ・RoHS compliant・Better die arrangement for optics・Wide range of luminous flux and high efficacy・Improved lumen density compared with previous versionCLU028-1201C4-273H5M3-F1[1][2][3][4][5][1][2][3][4][5]Product NomenclatureCRI (Ra)CLU028********K Min.90Product shape Die count in series Die count in parallel Nominal CCT2. Performance Characteristics2-1. Electro Optical Characteristics2-2. Absolute Maximum RatingsSymbol RatingPi 9.8*1If 230*1Ir 1Top -40 ~ +100Tst -40 ~ +100Tc 120*2Tj150*3*3. D.C. Current : Tj = Tc + Rj-c × PiStorage Temperature (C)Case Temperature (C)Junction Temperature (C)Operating Temperature (C)*1. Input power and forward current are the values when the LED is used within the range of the derating curve in this data sheet.*2. Refer to 3. Outline drawing for Tc measurement point.ParameterInput Power (W)Forward Current (mA)Reverse Current (mA)( Tj=85C )Ra R9Tc=25C*Min.Min.Min.Typ.Typ.Typ.Min.Typ.Max.CLU028-1201C4-273H5M3-F12700K 90503383854271269031.234.036.8 2.6CLU028-1201C4-303H5M3-F13000K 90503524014451319031.234.036.8 2.6CLU028-1201C4-353H5M3-F13500K 90503584074521339031.234.036.8 2.6CLU028-1201C4-403H5M3-F14000K90503584074521339031.234.036.82.6Notes :1. Citizen Electronics maintains a tolerance of ± 10% on luminous flux measurements.2. Citizen Electronics maintains a tolerance of ± 3% on forward voltage measurements.3. Citizen Electronics maintains a tolerance of ± 1 on Ra and R9 measurements.* : Values of Luminous flux at Tc=25C are provided as reference only.Product codeForward Current( mA )Thermal Resistance Rj-c ( C/W )CRI Nominal CCTLuminous flux( lm )Efficacy ( lm/W )Voltage( V )T ｊ=85C2-3. Chromaticity CharacteristicsNote : Citizen Electronics maintains chromaticity ( x, y ) +/-0.0050.300.350.400.450.300.350.400.450.50yxx-y chart CIE19314,000K3,500K3,000K2,700KBlack Body Locus3-step2700K( 0.4577, 0.4098)3000K ( 0.4339, 0.4032)3500K ( 0.4078, 0.3929)4000K( 0.3818, 0.3796)3-step MacAdam ellipse* Color region stay within MacAdam 3-step ellipse from the chromaticity center.* The chromaticity center refers to ANSI C78.377:2011.* θ is the angle between the major axis of the ellipse and the x-axis, and a and b are the major and minor semi-axes of an ellipse. ( Ref. IEC 60081:1997 AnnexD )0.009390.0040254.000.008340.0040853.170.009510.0041752.97 ( Rated current, Tj=85C )Color RegionNominal CCT Center Point ( x, y )Oval parameterMajor Axisa Minor Axisb E llipse Rotation Angleθ0.007740.0041157.283. Mechanical Dimensions・Internal Circuit12 s 01 p Protection deviceLED deviceCathodeAnodeUnit : mmTolerances unless otherwise specified : +/-0.3Marking 1 : Serial No.Marking 2 : CRI CCTDies count in parallel Dies count in series Ver.6T 12 01 ** **4. Characteristic Curves4-1. Forward Current Characteristics / Temperature CharacteristicsForward Current vs. Forward VoltageForward Current vs. Relative Luminous FluxTc=25C Tc=25CCase Temperature vs. Forward VoltageCase Temperature vs. Relative Luminous FluxIf=90mA If=90mA30.032.034.036.038.040.0050100150200250V f [V ]If [mA]0%50%100%150%200%250%050100150200250R e l a t i v e L u m i n o u s F l u x [a .u .]If [mA]33.034.035.036.037.00255075100125V f [V ]Tc [C]0%20%40%60%80%100%120%0255075100125R e l a t i v e L u m i n o u s F l u x [a .u .]Tc [C]Spectrum : CRI(Ra) 90 Min.Tj=85C If=90mA0%10%20%30%40%50%60%70%80%90%100%380430480530580630680730780R a d i a t i v e I n t e n s i t yWave length [nm]4000K3500K3000K2700K4-2. Optical CharacteristicsRadiation Characteristic 0%20%40%60%80%100%X Y80°70°60°50°40°30°20°10°-80°-70°-60°-50°-20°-30°-40°-10°90°-90°Case Temperaturevs. Allowable Forward Current0501001502002500255075100125I f [m A ]Tc [C]4-2. Optical Characteristics (continued)4-3. Derating Characteristics5. Reliability5-1. Reliability Test5-2. Failure CriteriaTest Item100 C × 1000 hours -40 C × 1000 hours Test ConditionIF=90mA Ta=25C (with Al-fin) ×1000hrs -40 C × 30 minutes – 100 C × 30 minutes, 100 cycle85 C, 85 %RH for 500 hoursThermal Shock TestContinuous Operation Test High Temperature Storage TestLow Temperature Storage Test Moisture-proof Test IF=90mA Tj=150C (with Al-fin) ×1000hrs( Tc=25C )U defines the upper limit of the specified characteristics. S defines the initial value.Note : Measurement shall be taken between 2 hours and 24 hours, and the test pieces should be return to the normal ambient conditions after the completion of each test.Total Luminous FluxΦvIf=90mA<S × 0.85Measuring Item Symbol Measuring ConditionFailure CriteriaForward Voltage Vf If=90mA >U × 1.11. TYPEe.g. CLU028-1201C41715001(2)4. Quantity(1) Last two digit of the year 17 : Year 2017(2) Production month 1 : JanuaryNote: October, November and December are designated X,Y and Z.(3) CE's control number (1)(3)Example of indication label2. P.No. ( Cutomer's P/N )3. Lot No.e.g. 6. Packing Specification6-1. PackingAn empty tray is placed on top of a 6-tier tray which contain 54 pieces each.( Smallest packing unit: 324 pieces )A label with product name, quantity and lot number is placed on the upper empty tray.Tray (Dimensions: 310 x 210 x 12 mm / Materials: Electrically conductive PS)Unit : mmProduct 54 pcs/trayCUSTOMERTYPEP.NO Lot No Q'ty: CLU***-******-******* : ****** : ******* : ***--- ( 1 ) --- ( 2 ) --- ( 3 ) --- ( 4 )7. Precaution7-1. Handling with care for this product-Both the light emitting area and white rim around the light emitting area is composed of resin materials.Please avoid the resin area from being pressed, stressed, rubbed, come into contact with sharp metal nail(e.g. edge of reflector part) because the function, performance and reliability of this product are negatively impacted.-Please be aware that this product should not come into contact with any other parts while incorporating in your lightingapparatus or your other products.-Please be aware that careful handling is required after the attachment of lead wires to prevent the application of any loadto the connections.-For more information, please refer to application note "Instruction Manual(COB LED Package)".7-2. Countermeasure against static electricity-Handling of this product needs countermeasures against static electricity because this is a semiconductor product.-Please take adequate measures to prevent any static electricity being produced such as the wearing of a wristband oranti-static gloves when handling this product.-Every manufacturing facility in regard to the product (plant, equipment, machine, carrier machine and conveyance unit)should be connected to ground and please avoid the product to be electric-charged.-ESD sensitivity of this product is over 1000V (HBM, based on JEITA ED-4701/304).-After assembling the LEDs into your final product(s), it is recommended to check whether the assembled LEDs aredamaged by static electricity (electrical leak phenomenon) or not.-It is easy to find static damaged LED dies by a light-on test with the minimum current value.7-3. Caution of product assembly-Regarding this product assembling on the heat sink, it is recommended to use M3 screw.It might be good for screw tightening on the heat sink to do temporary tightening and final tightening.In addition, please don’t press with excess stress on the product.-The condition of the product assembling on the heat sink and the control of screw tightening torque needs to be optimized according to the specification of the heat sink.-Roughness, unevenness and burr of surface negatively impact thermal bonding between the product and heat sink andincrease heat thermal resistance between them.Confidence of thermally and mechanical coupling between the product and heat sink are confirmed by checkingthe mounting surface and measuring the case temperature of the product.-In order to reduce the thermal resistance at assembly, it might be good to use TIM (Thermal Interface Material) on whole contact surface of the product.In case of using thermal grease for the TIM, it might be good to apply uniformly on the contact surface of the product.In case of using thermal sheet for the TIM, it might be good to make sure that the product is NOT strained by stress when the screws are tightened for assembly.-For more information, please refer to application note "Instruction Manual(COB LED Package)".7-4. Thermal Design-The thermal design to draw heat away from the LED junction is most critical parameter for an LED illumination system. High operating temperatures at the LED junction adversely affect the performance of LED’s light output and lifetime. Therefore the LED junction temperature should not exceed the absolute maximum rating in LED illumination system. -The LED junction temperature while operation of LED illumination system depends upon thermal resistance of internal LED package (Rj-c), outer thermal resistances of LED package, power loss and ambient temperature. Please take both of the thermal design specifications and ambient temperature conditions into consideration for the setting of driving conditions.-For more information, please refer to application note "Thermal Management", "Instruction Manual(COB LED Package)".7-5. Driving Current-A constant current is recommended as an applying driving current to this product.In the case of constant voltage driving, please connect current-limiting resistor to each products in series and control the driving current to keep under the absolute maximum rating forward current value.-Electrical transient might apply excess voltage, excess current and reverse voltage to the product(s).They also affect negative impact on the product(s) therefore please make sure that no excess voltage, no excess current and no reverse voltage is applied to the product(s) when the LED driver is turn-on and/or turn-off.-For more information, please refer to application note "Driving", "Instruction Manual(COB LED Package)".7-6. Lighting at a minimum current value-A minimum current value of lighting of all dice is 15mA.When a minimum current is applied, LED dice may look different in their brightness due to the individual difference of the LED element, and it is not a failed product.7-7. Electrical Safety-This product is designed and produced according to IEC 62031:2008(IEC 62031:2008 LED modules for general lighting. Safety specification)-Dielectric voltage withstand test has been conducted on this product to see any failure after applyingvoltage between active pads and aluminum section of the product, and to pass at least 500V.-Considering conformity assessment for IEC62031:2008, almost all items of the specification depend uponyour final product of LED illumination system.Therefore, please confirm with your final product for electrical safety of your product.As well, the products comply with the criteria of IEC62031:2008 as single LED package.- A minimum current value of lighting of all dice is 5 mA. When a minimum current is applied, LED dice may look different in their brightness due tothe individual difference of the LED element, and it is not a failed product.7-8. Recommended soldering Condition (This product is not adaptable to reflow process.) -For manual solderingPlease use lead-free soldering.Soldering shall be implemented using a soldering bit at a temperature lower than 350C, and shall befinished within 3.5 seconds for one land.No external force shall be applied to resin part while soldering is implemented.Next process of soldering should be carried out after the product has return to ambient temperature.Contacts number of soldering bit should be within twice for each terminal.* Citizen Electronics cannot guarantee if usage exceeds these recommended conditions.Please use it after sufficient verification is carried out on your own risk if absolutely necessary.-For more information, please refer to application note "Instruction Manual(COB LED Package)".7-9. Eye Safety-The International Electrical Commission (IEC) published in 2006 IEC 62471”2006 Photobiological safety of lamps and lamp systems ” which includes LEDs within its scope.When sorting single LEDs according to IEC 62471, almost all white LEDs can be classifiedas belonging to either Exempt Group (no hazard) or Risk Group 1 (low risk).-However, Optical characteristics of LEDs such as radiant flux, spectrum and light distribution are factorsthat affect the risk group determination of the LED, and especially a high-power LED, that emits lightcontaining blue wavelengths,might have properties equivalent to those of Risk Group 2 (moderate risk).-Great care should be taken when directly viewing an LED that is driven at high current, has multipleuses as a module or when focusing the light with optical instruments, as these actions might greatlyincrease the hazard to your eyes.-It is recommended to regard the evaluation of stand-alone LED packages as a referenceand to evaluate your final product.7-10. This product is not designed for usage under the following conditions.If the product might be used under the following conditions, you shall evaluate its effect and appropriate them. In places where the product might:-directly and indirectly get wet due to rain and/or at place with the fear.-be damage by seawater and/or at place with the fear-be exposed to corrosive gas (such as Cl2, H2S, NH3, SOx, NOx and so on) and/or at place with the fear.-be exposed to dust, fluid or oil and/or at place with the fear.Precautions with regard to product use(1) This document is provided for reference purposes only so that CITIZEN ELECTRONICS' products are used as intended. CITIZEN ELECTRONICS neither makes warranties or representations with respect to the accuracy or completeness of the information contained in this document nor grants any license to any intellectual property rights or any other rights of CITIZEN ELECTRONICS or any third party with respect to the information in this document. (2) All information included in this document such as product data, diagrams, charts, is current as of the date this document is issued.Such information, however, is subject to change without any prior notice.Before purchasing or using any CITIZEN ELECTRONICS' products listed in this document, please confirm the latest product information with a CITIZEN ELECTRONICS' sales office, and formal specifications must be exchanged and signed by both parties prior to mass production.(3) CITIZEN ELECTRONICS has used reasonable care in compiling the information included in this document, but CITIZEN ELECTRONICS assumes no liability whatsoever for any damages incurred as a result of errors or omissions in the information included in this document.(4) Absent a written signed agreement, except as provided in the relevant terms and conditions of sale for product, and to the maximum extent allowable by law, CITIZEN ELECTRONICS assumes no liability whatsoever, including without limitation, indirect, consequential, special, or incidental damages or loss, including without limitation, loss of profits, loss of opportunities, business interruption and loss of data, and disclaims any and all express or implied warranties and conditions related to sale, use of product, or information, including warranties or conditions of merchantability, fitness fora particular purpose, accuracy of information, or no infringement.(5) Though CITIZEN ELECTRONICS works continually to improve products' quality and reliability, products can malfunction or fail. Customers are responsible for complying with safety standards and for providing adequate designs and safeguards to minimize risk and avoid situations in which a malfunction or failure of a product could cause loss of human life, bodily injury or damage to property, including data loss or corruption.In addition, customers are also responsible for determining the appropriateness of use of any information contained in this document such as application cases not only with evaluating by their own but also by the entire system.CITIZEN ELECTRONICS assumes no liability for customers' product design or applications.(6) Please contact CITIZEN ELECTRONICS' sales office if you have any questions regarding the information contained in this document, or if you have any other inquiries.CITILED is a registered trademark of CITIZEN ELECTRONICS CO., LTD. Japanis a trademark or a registered trademark of CITIZEN ELECTRONICS CO., LTD. JAPAN.。

美国Eaton公司产品说明书：Eaton Moeller BBA系列总线适配器

Eaton 101483Eaton Moeller® series BBA Busbar adapter, 55 mm, DIN rail: 2General specificationsEaton Moeller® series BBA Accessory Busbar adapter101483BBA4/2TS-L4015081014033260 mm 63 mm 55 mm 0.262 kgCECertified by UL for use in Canada IEC60439-1 UL UL 508UL File No.: E300273 CSA-C22.2 No. 14 UL 508AUL Category Control No.: NMTR; NMTR7Product NameCatalog Number Model Code EANProduct Length/Depth Product Height Product Width Product Weight Certifications0 AIs the panel builder's responsibility. The specifications for the switchgear must be observed.25 mm0 WMeets the product standard's requirements.Is the panel builder's responsibility. The specifications for the switchgear must be observed.Does not apply, since the entire switchgear needs to be evaluated.2 mounting rails35 mmMeets the product standard's requirements.Meets the product standard's requirements.Meets the product standard's requirements.Is the panel builder's responsibility.Is the panel builder's responsibility.55 °C eaton-xeffect-sasy60i-customer-success-story-css-wagner-mueller-en-us.pdfeaton-xeffect-sasy-60i-fk4300-1167gb-en-us.pdfProduct Range Catalog Switching and protecting motorsDA-DC-00004545.pdfDA-DC-00004624.pdfDA-DC-00004637.pdfeaton-xeffect-sasy-60i-declaration-of-conformity.pdfDA-DC-00004952.pdfDA-DC-00004953.pdfDA-DC-00004960.pdfDA-DC-00004961.pdfDA-DC-00004935.pdfeaton-manual-motor-starters-bba-busbar-adapter-dimensions-004.eps eaton-manual-motor-starters-bba-busbar-adapter-3d-drawing-010.epsETN.BBA4_2TS-LIL03402015Zbba4_2ts_lbba4_2ts_l.stpNominal current10.11 Short-circuit ratingNumber of DIN railsBusbar thickness - minEquipment heat dissipation, current-dependent Pvid10.4 Clearances and creepage distances10.12 Electromagnetic compatibility10.2.5 LiftingMounting rail armamentRail width10.2.3.1 Verification of thermal stability of enclosures10.2.3.2 Verification of resistance of insulating materials to normal heat10.2.3.3 Resist. of insul. mat. to abnormal heat/fire by internal elect. effects10.8 Connections for external conductors10.9.2 Power-frequency electric strengthAmbient operating temperature - max BrochuresCataloguesCertification reports Declarations of conformity DrawingseCAD modelInstallation instructions mCAD model10.7 Internal electrical circuits and connectionsIs the panel builder's responsibility.Static heat dissipation, non-current-dependent Pvs0 W10.10 Temperature riseNot applicable.10.9.3 Impulse withstand voltageIs the panel builder's responsibility.Voltage rating (UL CSA 13)600 V AC, UL/CSAAmbient operating temperature - min-25 °CBusbar thickness - max10 mmTypeBusbar adapterSASY Busbar system 60mm10.2.2 Corrosion resistanceMeets the product standard's requirements.10.6 Incorporation of switching devices and componentsDoes not apply, since the entire switchgear needs to be evaluated.10.2.4 Resistance to ultra-violet (UV) radiationMeets the product standard's requirements.10.2.7 InscriptionsMeets the product standard's requirements.10.5 Protection against electric shockDoes not apply, since the entire switchgear needs to be evaluated.Busbar distance60 mmElectric connection typeNone10.13 Mechanical functionThe device meets the requirements, provided the information in the instruction leaflet (IL) is observed.Eaton Corporation plc Eaton House30 Pembroke Road Dublin 4, Ireland © 2023 Eaton. All rights reserved. Eaton is a registered trademark.All other trademarks areproperty of their respectiveowners./socialmediaDoes not apply, since the entire switchgear needs to be evaluated.Is the panel builder's responsibility.0 WDoes not apply, since the entire switchgear needs to be evaluated.54 mm10.2.6 Mechanical impact10.9.4 Testing of enclosures made of insulating material Heat dissipation per pole, current-dependent Pvid 10.3 Degree of protection of assembliesAdapter width。