灯具驱动marking
灯具标志(Marking)
EMC
电磁兼容性
Electro magnetic compatibility =Electromagnetic Susceptibility + Electromagnetic Immunity
Ta
额定环境最大温度
处于正常工作的最高持续温度（Ambient），不排除在≦（ta+10℃）的温度下瞬间工作
安全隔离变压器
为安全特低电压Βιβλιοθήκη SELV）电路提供电源的隔离变压器。
非耐短路变压器
需利用置于变压器外部的保护装置来防止其过热的变压器。
耐短路变压器
当变压器过载或短路时，其温升不会超过规定的限值，且在过载或短路消除后能恢复原有的功能。
耐短路的安全隔离变压器
变压器符号可以与隔离变压器或安全隔离变压器的符号组成一个新符号。
玩具用变压器
用安全特低电压向电动玩具供电的安全隔离变压器。
符号Symbol
名称Title
含义Signification
电铃用变压器
专供家庭电铃或类似信号用的固定式单相安全隔离变压器。
电动剃刀用变压器
只能每次供给一个电动剃刀或类似负载使用的、输出限定并可固定装配的隔离变压器。
III级
防触电保护依靠电源电压为SELV，其内部不会产生大于SELV的电压。
电流波峰系数
Current crest factor，一般应小于1.7。
热试验源
Heat test source
普通照明设施
General lighting service
爱迪生灯头
Edisonscrewed E27
微型爱迪生灯头
SGS灯具结构检查标准简介
SGS CSTC (Shanghai)
SGS CSTC (Shanghai)
6
灯具 结构检查
IEC/EN 60598-2-18. Luminaires for swimming-pools and similar applications. (游泳池和类似场所用灯具）
SGS CSTC (Shanghai)
7
灯具 结构检查
IEC/EN 60598-2-20 Lighting chains（灯串）
c) Marking to be observed after installation shall be visible with the luminaire assembled and installed as for normal use and with the lamp in place.
SGS CSTC (Shanghai)
14
Section 3 – Marking
灯具 结构检查
SGS CSTC (Shanghai)
15
铭牌擦拭测试
灯具 结构检查
IEC/EN 61558:
变压器
IEC/EN 60238, 61184, 60838: 灯座
IEC/EN 60432: 灯泡
IEC/EN 60083: 插头
IEC/EN 60227, 60245: 软线
SGS CSTC (Shanghai)
LED灯电源安规参考知识 vip
2.1、终端灯具产品性能要求
功率因素是灯具产品的一个最基本、最重要的性能参数。
2.2、灯具以及灯具电源安全标准要求
以下主要列举了相关安全标准中对 Power Factor 的要求。
标准
要求
备注
IEC61347-1/2-13 LED 模组 标准中有 power factor 的定义，其中高 power 但无强制规定一定要
电源有着其特殊而且严格的要求，所有灯具类电源都必须要结合最终终端灯具要求来进行设计和评估。
以下主要针对 LED 灯具电源要求进行总结、针对与传统 ITE/AV 电源的差异性要求。
一、安全标记/说明书
标准
标记/说明书类型
放置位置
IEC 61347-1
标记：
一般放置在产品表面，部分也
IEC 61347-2-13 1、 独立式灯具控制器符号 ；
以上，所有终端以 LED 为光源的灯具还必须满足对应的控制装置/电源供应的安全规范要求。
应用产品
EU
USA
灯的控制装置的通用安全要求 IEC 61347-1
-
LED 设备的安全要求
-
UL Subject 8750
Page 4 / 4
九、参考标准
以下根据灯具产品的用途及其使用环境来决定。
应用产品
EU
节能灯（自镇流）
EN60968
轨道灯
EN60570
固定式普通灯具
EN60598-2-1
草地灯
EN60598-2-1/7
指示灯/广告灯
EN60598-2-1
嵌入式普通灯具
EN60598-2-2
路灯
EN60598-2-3
移动式灯具
RT8510 LED驱动器数据手册说明书
RT8510®©Copyright 2021 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Pin Configuration(TOP VIEW)WQFN-16L 3x343V 4-CH LED DriverGeneral DescriptionThe RT8510 is a high efficiency driver for white LEDs. It is designed for LCD panels that employ an array of LEDs as the lighting source. An integrated switch current mode boost controller drives four strings in parallel and supports up to 12 pieces of LED per string. The internal current sinks support a maximum of ±2% current mismatching for excellent brightness uniformity in each string of LED.To provide enough headroom for current sink operation the boost controller monitors the minimum voltage of feedback pins and regulates an optimized output voltage for power efficiency.The RT8510 has a wide input voltage range from 4.2V to 24V and provide an adjustable 10mA to 40mA LED current.The internal 200m Ω, 43V power switch with current-mode control provides cycle-by-cycle over current protection.The RT8510 also integrates PWM dimming function for accurate LED current control. The input PWM dimming frequency can operate from 120Hz to 30kHz without inducing any inrush current through the LED or inductor.The switching frequency of the RT8510 is adjustable from 500kHz to 2MHz, allowing the user flexibility between efficiency and component size.The RT8510 is available in a WQFN-16L 3x3 package.Features●Wide Input Voltage : 4.2V to 24V●High Output Voltage : Up to 43V●Adjustable Channel Current : 10mA to 40mA ●Channel Current Accuracy : ±3%●Channel Current Matching : ±2%●PWM Dimming Frequency : 120Hz to 30kHz●Adjustable Switching Frequency : 500kHz to 2MHz ●Built-In Soft-Start●Disconnects LED in Shutdown ●Open Current Sink Detection●Adjustable Over Voltage Protection ●Over Temperature Protection ●Current Limit Protection●Thin 16-Lead WQFN Package●RoHS Compliant and Halogen FreeApplications●UMPC and Notebook Computer Backlight ●GPS, Portable DVD BacklightOrdering InformationNote :Richtek products are :❝ RoHS compliant and compatible with the current require-ments of IPC/JEDEC J-STD-020.❝ Suitable for use in SnPb or Pb-free soldering processes.RTISET AGND COMP OVP PGND LXPGND P W MV I N E N L XH 4H 3H 1H 2G : Green (Halogen Free and Pb Free)Z : ECO (Ecological Element with Halogen Free and Pb free)RT8510©Copyright 2021 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.HU= : Product Code YMDNN : Date CodeTypical Application CircuitV OUT 1nFFigure 1. General Application CircuitV OUT 23V MAXMAX )Figure 2. Low Input Voltage Application CircuitRT8510©Copyright 2021 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.F unctional Block DiagramRT8510©Copyright 2021 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Absolute Maximum Ratings (Note 1)●Supply Input Voltage to GND -------------------------------------------------------------------------------------------−0.3V to 26.5V ●EN, PWM, ISET , COMP , RT to GND ---------------------------------------------------------------------------------−0.3V to 26.5V ●LX, OVP , CH1, CH2, CH3, CH4 to GND -----------------------------------------------------------------------------−0.3V to 48V ●Power Dissipation, P D @ T A = 25°CWQFN-16L 3x3------------------------------------------------------------------------------------------------------------1.471W ●Package Thermal Resistance (Note 2)WQFN-16L 3x3, θJA -------------------------------------------------------------------------------------------------------68°C/W WQFN-16L 3x3, θJC ------------------------------------------------------------------------------------------------------7.5°C/W ●Lead Temperature (Soldering, 10 sec.)-------------------------------------------------------------------------------260°C ●Junction T emperature -----------------------------------------------------------------------------------------------------150°C●Storage T emperature Range --------------------------------------------------------------------------------------------−65°C to 150°C ●ESD Susceptibility (Note 3)HBM --------------------------------------------------------------------------------------------------------------------------2kV MM ----------------------------------------------------------------------------------------------------------------------------200VRecommended Operating Conditions (Note 4)●Supply Input Voltage, V IN ------------------------------------------------------------------------------------------------4.2V to 24V ●Junction T emperature Range --------------------------------------------------------------------------------------------−40°C to 125°C ●Ambient T emperature Range --------------------------------------------------------------------------------------------−40°C to 85°CElectrical CharacteristicsRT8510©Copyright 2021 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Note 1. Stresses beyond those listed “Absolute Maximum Ratings ” may cause permanent damage to the device. These arestress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may affect device reliability.Note 2. θJA is measured under natural convection (still air) at T A = 25°C with the component mounted on a high effective-thermal-conductivity four-layer test board on a JEDEC 51-7 thermal measurement standard. θJC is measured at the exposed pad of the package.Note 3. Devices are ESD sensitive. Handling precaution is recommended.Note 4. The device is not guaranteed to function outside its operating conditions.Note 5. Guaranteed by design; not subject to production testing.RT8510©Copyright 2021 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.LED Current vs. Input Voltage49141924Input Voltage (V)L E D C u r r e n t (m A )Typical Operating CharacteristicsLED Current vs. Temperature14161820222426-50-25255075100125Temperature (°C)L E D C u r r e n t (m A )LED Current vs. PWM Duty Cycle01020304050607080900102030405060708090100Duty Cycle (%)L E D C u r r e n t (m A )Efficiency vs. Input Voltage01020304050607080901004812162024Input Voltage (V)E f f i c i e n c y (%)V ISET vs. Temperature0.400.450.500.550.600.650.70-50-25255075100125Temperature (°C)V I S E T (V )V ISET vs. Input Voltage0.30.40.50.60.70.84812162024Input Voltage (V)V I S E T (V )RT8510©Copyright 2021 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Switch Off Current vs. Temperature0.50.70.91.11.31.5-50-25255075100125Temperature (°C)S w i t c h O f f C u r r e n t (m A)Line Transient ResponseTime (50ms/Div)V IN (2V/Div)I OUT(50mA/Div)V IN = 4.5V to 5.5V, f OSC = 1MHzLine Transient Response Time (50ms/Div)V IN = 11V to 14V, f OSC = 1MHzV IN (5V/Div)I OUT(50mA/Div)OVP Threshold vs. Input Voltage4812162024Input Voltage (V)O V P T h r e s h o l d (V )RT8510©Copyright 2021 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Application InformationThe RT8510 is a general purpose 4-CH LED driver capable of delivering an adjustable 10 to 40mA LED current. TheIC is a current mode boost converter integrated with a43V/2A power switch and can cover a wide V IN range from 4.2V to 24V. The switching frequency is adjustable by anexternal resistor from 500kHz to 2MHz. The part integrates built-in soft start, with PWM dimming control;moreover, it provides over voltage, over temperature and current limiting protection features.Soft-StartThe RT8510 equips a built-in soft-start feature to prevent high inrush current during start-up. The soft-start function prevents excessive input current and input voltage droop during power on pensationThe control loop can be compensates by adjusting the external components connected to the COMP pin. The COMP pin is the output of the internal error amplifier. The compensation capacitors, C3 and C4, will adjust the integrator zero and pole respectively to maintain stability.Moreover, the resistor, R3, will adjust the frequency integrator gain for fast transient response.Switching FrequencyThe LED driver switching frequency is able to adjusted as the following equation :where R ISET is the resistor between the ISET pin and GND.This setting is the reference for the LED current at channel 1-4 and represents the sensed LED current for each string.The DC/DC converter regulates the LED current according to R ISET .Power SequenceLED Driver is without power sequence concern. Figure 4,Figure 5 and Figure 6 are different power sequences respectively. There is no concern in the above condition.LED ISET95I R ≅Setting and Regulation of LED CurrentThe LED current can be calculated by the following equation :OSC RT 51kf (MHz)R ≅LED ConnectionThe RT8510 equips 4-CH LED divers with each channel supporting up to 12 LEDs. The LED strings are connected from the output of the boost converter to pins 13, 14, 15and 16 respectively. If one of the LED channel is not used,the LED pin should be opened directly.Light Load ModeWhen the input voltage is close to the output voltage,V OUT ripple will increase. The V OUT should be set at higher than 1.2 x V IN . If duty pulse is close to minimum on-time and smaller than 120ns, the duty pulse will be skipped.Figure 3 shows the timing diagram with skipped pulse.Operation Operation OperationSkipped Figure 3. Pulse Skip ModeFigure 4Power On Mode 1VINRT8510©Copyright 2021 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.where V OVP = 1.2V (typ.).R OVP1 and R OVP2 are the resistors in the voltage dividerconnected to the OVP pin. If at least one string is in normal operation, the controller will automatically ignore the open strings and continue to regulate the current for the strings in normal operation. It is suggested to use 2M Ω for R OVP2to reduce loading effect.Current Limit ProtectionThe RT8510 can limit the peak current to achieve over current protection. The RT8510 senses the inductor current during the “ON ” period that flows through the LX pin. The duty cycle depends on the current signal and internal slope compensation in comparison with the error signal. The internal switch will be turned off when the current signal is larger than the internal slope compensation. In the “OFF ” period, the inductor current will be decreased until the internal switch is turned on by the oscillator.Brightness ControlThe RT8510 brightness dimming control is determined by the signal on the PWM pin with a suggested PWM frequency range from 120Hz to 30kHz. However, the LED current cannot be 100% proportional to duty cycle especially for high frequency and low duty ratio because of physical limitation caused by inductor rising time. Please refer to T able 1 and Figure 7.OVP2OUT(OVP)OVP OVP1R V V 1R ⎛⎫=⨯+ ⎪⎝⎭Over Voltage ProtectionThe RT8510 integrates over voltage protection (OVP)function. When the voltage at the OVP pin reaches the threshold voltage, the internal switch will be turned off.The internal switch will be turned on again once the voltage at OVP pin drops below its threshold voltage.The OVP threshold voltage is adjustable and can be clamped at a certain voltage level and it can be calculated by the following equation :Figure 5Power On Mode 2Power Off Mode 1-1Power Off Mode 1-2Power On Mode 2Figure 6VINVOUTENPWMVINVOUTENPWMVINVOUTEN PWMRT8510©Copyright 2021 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Over Temperature ProtectionThe RT8510 has over temperature protection function to prevent the IC from overheating due to excessive power dissipation. The OTP function will shutdown the IC when junction temperature exceeds 160°C .Inductor SelectionThe value of the inductance L can be approximated by the following equation, where the transition is from discontinuous conduction mode (DCM) to continuous conduction mode (CCM) :The duty cycle can be calculated according to the following equation :where V OUT is the maximum output voltage, V IN is the minimum input voltage, f OSC is the operating frequency and I OUT is the total current from all LED strings.The boost converter operates in DCM over the entire input voltage range when the inductor value is below this value L. When inductance greater is than L, the converter operates in CCM at the minimum input voltage and may be discontinuous at higher voltages.The inductor must be selected with a saturated current rating that is greater than the peak current provided by the following equation :where η is the efficiency of the power converter and T isthe operating period.Diode SelectionSchottky diodes are recommended for most applications because of their fast recovery time and low forward voltage.The power dissipation, reverse voltage rating and pulsating peak current are the important parameters for Schottky diode selection. Make sure that the diode's peak current rating exceeds I PEAK and reverse voltage rating exceeds the maximum output voltage.Output Capacitor SelectionThe input capacitor reduces current spikes from the input supply and minimizes noise injection to the converter. For most applications, a 10μF ceramic capacitor is sufficient.A value higher or lower may be used depending on the noise level from the input supply and the input current to the converter.For lower output voltage ripple, a low ESR ceramic capacitor is recommended. The output voltage ripple consists of two components: one is the pulsating output ripple current flowing through the ESR, and the other is2OUT OSC OUTD (1D)V L 2f I ⨯-⨯=⨯⨯OUTIN OUTV V D V -=OUT OUT IN PEAK INV I V D TI V 2L η⨯⨯⨯=+⨯⨯Figure 7Note : The minimum duty in Table 1 is based on the application circuit and does not consider the deviation of current linearity.LED Current vs. PWM Duty Cycle01020304050607080900102030405060708090100Duty Cycle (%)L E D C u r r e n t (m A )RIPPLE RIPPLE_ESR RIPPLE_CPEAK AVDD IN1PEAK ESR OUT1AVDD V V V IV V I R C V f η=+⎛⎫-≅⨯+ ⎪⨯⨯⎝⎭RT851011DS8510-07 December 2021©Copyright 2021 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.Figure 8. Derating Curve of Maximum Power Dissipation0.000.200.400.600.801.001.201.401.60255075100125Ambient Temperature (°C)M a x i m u m P o w e r D i s s i p a t i o n (W)Layout ConsiderationsPCB layout is very important for designing switching power converter circuits. The following layout guides should be strictly followed for best performance of the RT8510.❝The power components, L1, D1, C IN , C OUT must be placed as close as possible to reduce current loop. The PCB trace between power components must be as short and wide as possible.❝Place L1 and D1as close as possible to LX pin . The trace should be as short and wide as possible.❝The compensation circuit should be kept away from the power loops and should be shielded with a ground trace to prevent any noise coupling. Place the compensation components as close as possible to COMP pin.❝The exposed pad of the chip should be connected to ground plane for thermal consideration.H 4H 3H 1H 2The compensation circuit should be kept away from the power loops and should be shielded with a ground trace Place the power components as close as possible. The Figure 9. PCB Layout GuideThermal ConsiderationsThe junction temperature should never exceed the absolute maximum junction temperature T J(MAX), listed under Absolute Maximum Ratings, to avoid permanent damage to the device. The maximum allowable power dissipation depends on the thermal resistance of the IC package, the PCB layout, the rate of surrounding airflow,and the difference between the junction and ambient temperatures. The maximum power dissipation can be calculated using the following formula :P D(MAX) = (T J(MAX) − T A ) / θJAwhere T J(MAX) is the maximum junction temperature, T A is the ambient temperature, and θJA is the junction-to-ambient thermal resistance.For continuous operation, the maximum operating junction temperature indicated under Recommended Operating Conditions is 125°C. The junction-to-ambient thermal resistance, θJA , is highly package dependent. For a WQFN-16L 3x3, the thermal resistance, θJA , is 68°°C/W on a standard JEDEC 51-7 high effective-thermal-conductivity four-layer test board. The maximum power dissipation at T A = 25°C can be calculated as below :P D(MAX) = (125°C − 25°C) / (68°C/W) = 1.471W for a WQFN-16L 3x3 package.The maximum power dissipation depends on the operating ambient temperature for the fixed T J(MAX) and the thermal resistance, θJA . The derating curves in Figure 1 allows the designer to see the effect of rising ambient temperature on the maximum power dissipation.12DS8510-07 December 2021 Richtek Technology Corporation14F, No. 8, Tai Yuen 1st Street, Chupei City Hsinchu, Taiwan, R.O.C.Tel: (8863)5526789Richtek products are sold by description only. Richtek reserves the right to change the circuitry and/or specifications without notice at any time. Customers shouldobtain the latest relevant information and data sheets before placing orders and should verify that such information is current and complete. Richtek cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Richtek product. Information furnished by Richtek is believed to be accurate and reliable. However, no responsibility is assumed by Richtek or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Richtek or its subsidiaries.W-Type 16L QFN 3x3 Package。
UL 标准的分类
LED 灯具在 UL 标准的分类以下首先针对led灯具、LED 灯泡及 LED 驱动器等三种基本产品分类，及其分别沿用至各成品或零件时，所应参考的 UL 安规标准及应特别注意事项，以做为业者欲进行产品安规检测的基本指南。
不过该表仅供读者参考，产品实际的归类，仍须依产品的用途及其使用环境来决定。
? Subject 8750 的安全评估与测试在大略了解各产品应参考的标准后，以下将简单说明与上述标准互补的 Subject 8750。
Subject 8750 目前已更新至第 3 修订版，内容共分为 12 章，其中第 1 - 4 章为：包含范畴，定义等总章；第 5 - 9 章为：结构要求；第 10 - 11 章为：测试评估；第 12 章则为：产品标示。
以下即针对“结构要求”与“测试评估”等两大内容架构陈述。
不过在此特别提醒读者，由于每一本安规标准的产品用途与使用环境规定有所不同，因此采用 Subject 8750 条文规范的程度自然也不尽相同。
一、结构要求 (5 - 9 章)1. 使用环境考量：产品使用在不同环境下，如干燥 (Dry)、潮湿 (Damp)、户外 (Wet) 等场所，安规标准对于带电体的间距、塑料外壳、测试、警示标语 (Marking) 等，会有不同的要求。
2. 机械性结构要求：此部份首重外壳的安全要求，并着重在防火、防电击、防碰撞等性能；另在金属外壳的厚度、防腐蚀性及塑料外壳的物理特性也有所要求，其它还有对隔板、内线保护、抗拉、灌胶等规定。
3. 电气性结构要求：包括危险带电体的避免接触、外露的结线端子、内部结线、供电端与负载端的连结、电路的隔离、绝缘材质的使用、印刷电路板的规格、带电体的间距、电子零件、保护装置、及 Class 2 或LPS 安全回路的能量限制等，皆在此部份的规范范围内。
4. 其它要求：如 LED 电源、LED 数组、LED 模块及 LED 控制模块等安全及外壳要求等。
LED 的电源可以是下列标准所验证的电源供应器，包括UL 1012，UL 1310 及 UL 60950-1。
101_灯具基本要求 12_2
Paulmann Requirements 101101_Basic requirements for luminaires 12_2.docPage 1/39Basic Requirement for LuminairesSave date 20/03/2010 13:59:00Vers. 12/21. Aim: Requirements for developing and manufacturing of luminaires. The report is onlyintended for the suppliers who are producing articles for …Paulmann Licht GmbH“ and it is not allowed to give it to a third party.目标：对于灯具开发和生产的要求。
这个报告是为给柏曼生产产品的供应商而准备的，它是不允许给到第三方的。
2. Scope / competency 范围/职责:OEK, PCO, PD, QA, SEK, supplier3. Abbreviations 缩写:OEK = Operative purchase department 执行采购部门 PCO = Paulmann China Office 柏曼中国办事处PD = Paulmann Development 柏曼开发部门 PHO = Paulmann Head Office 柏曼总公司 QA = Quality Assurance 品质保证部门SEK = Strategic purchase department 战略采购部门4 Additional necessary requirements (if applicable) 附加必需的要求（如果适用的） 4.1 102_Specification low volt rail systems.pdf 低压走杆灯系统要求 4.2 103_Specification low volt wire systems.pdf 低压走线灯系统要求4.3 104_Specification floor_ table_wall and ceiling luminaires.pdf 落地灯、台灯、吸顶灯要求 4.4 105_Specification downlights.pdf 天花灯要求4.5 106_Specification for complete LED luminaires.pdf 完整LED 灯具的要求 4.6 108_Easy mountable luminaires.pdf 灯具易安装的要求 4.7 109_Cable length.pdf 线长要求4.8 705_Packaging production - general specifications.pdf 包装生产总体要求 4.9 706_Specification article packing.pdf 产品包装要求 4.10 708_E01_CD_Requirement_type_labels.pdf 型号贴要求5 General 概述5.1.Luminaires must be produced in accordance with the European directives灯具的生产必须按照欧洲官方的指令5.2.EMC directive 2004/108/EG EMC 指令2004/108/EG Low voltage directive 2006/95/EG 低电压指令2006/95/EGChapter 章节(EN 60598-1)Basic requirements for luminaires对于灯具的基本要求ormarkings etc...)O.k., not necess ary)Vers. 12/2ROHS directive 2002/95/EC ROHS 指令2002/95/ECCOMMISSION REGULATION (EC) No 245/2009 委员会规定(EC) No 245/20095.3.Luminaires must be in accordance with the European standards: 灯具必须符合欧洲标准： EN 60598-1 Luminaires -Part 1: General requirements and testsEN60598-1灯具-第一部分：一般要求和测试EN 60598-2-XX Luminaires -Part 2: XX see special standards in accordance with the type of the luminaireEN60598-2-XX 灯具_第二部分：XX 依照灯具的类型来查看特定的标准EN 62493 assessment of lighting equipment related to human exposure to electromagnetic fields相关的灯具设备对有关人体电磁照射的评定的标准： EN 624935.4 All standards must be in their latest revised version. 所有的标准必须是最新的修订版本。
UL Class P驱动认证常见问题汇总
UL Class P驱动认证常见问题汇总UL 8750在继2017年1月15日推出了LED驱动的Class P Program的CRD(Certification Requirement Decision)后，又于10月21日将该要求加以改进并正式写入UL 8750标准。
通过UL Class P认证，并能在UL官网上检索到，这为成品灯具进行LED驱动的互换选型提供了极大的便利，也为已通过UL Class P认证的驱动厂家提供了更为广阔的市场前景。
正是基于这种相互促进，越来越多的LED驱动厂家对UL的Class P Program产生了浓厚兴趣，本文结合标准更新，将LED驱动在申请UL Class P时的常见问题加以整理，以期为LED驱动客户在认证前期提供帮助，使其可以更好的理解技术要求，从而可以顺利通过UL Class P认证！1、Class P驱动的输入端接线方式除了适合现场接线的导线(或cord)和端子外, 还接受其它方式吗？适合现场接线的接线盒(适配电工管)也是接受的。
2、Class P的LED驱动是否一定不能有开孔？之前的CRD版的要求是不允许有开孔的，但是在最新一版的标准中，已经对该要求进行了放宽，允许有开孔，只要开孔尺寸不超过标准要求且当材料为金属时，在做完机械测试后Spacing要求仍然符合标准要求，同时需要打上“Use only within an enclosure”的Marking。
3、Class P的驱动是列名的，是否意味着只要满足替换条件就可以由用户在现场进行替换？不可以，尽管是列名的，但是Class P的驱动仍然需要在工厂里完成替换，因为现场的普通用户不了解Class P的替换原则，只有能看到UL文件并能遵循文件中约定的特定替换原则的工厂才可以进行替换。
4、Class P驱动的替换原则是什么样的？替换原则是基于在成品里用于测试的Class P驱动的额定参数来确定的，总体来说，待替换驱动的输入电流或功率不能大于被替换驱动的相应参数，待替换驱动的输出电流电压不能大于被替换驱动的相应参数，在之前版本的替换原则里，还需要待替换驱动的输出功率大于被替换驱动的输出功率，该要求试图杜绝出现小马拉大车的情况，但是实际情况是很难找到输入输出电流都小，但是输出功率却更大的驱动，从而导致很多驱动不符合该替换原则。
XL6004 400KHz 60V 3A LED 常压电源驱动器说明书
400KHz 60V 3A Switching Current Boost LED Constant Current Driver XL6004Featuresn Wide 3.6V to 32V Input Voltage Range n0.22V FB adjustable LED drive current n Directly drive up to 16 Series 1W LED n Fixed 400KHz Switching Frequencyn Max. 3A Switching Current Capability n Up to 92% efficiencyn Excellent line and load regulationn EN PIN TTL shutdown capabilityn Internal Optimize Power MOSFETn Built in Soft-Start Functionn Built in Frequency Compensationn Built in Thermal Shutdown Functionn Built in Current Limit Functionn Available in TO252-5L package Applicationsn LED Lightingn Boost constant current drivern Monitor LED Backlightingn7’ to 15’ LCD Panels General DescriptionThe XL6004 regulator is fixed frequency PWM Boost (step-up) LED constant current driver, capable of driving Series 1W/3WLED units withexcellent line and load regulation. The regulator issimple to use because it includes internal frequencycompensation and a fixed-frequency oscillator sothat it requires a minimum number of externalcomponents to work.The XL6004 could directly drive 12 Series 1W LEDunits at VIN>12V.The PWM control circuit is able to adjust theduty ratio linearly from 0 to 95%. An enablefunction, an over current protection functionis built inside. An internal compensationblock is built in to minimize externalcomponent count.Figure1. Package Type of XL6004400KHz 60V 3A Switching Current Boost LED Constant Current Driver XL6004 Pin ConfigurationsFigure2. Pin Configuration of XL6004 (Top View)Table 1 Pin DescriptionPin Number Pin Name Description1 GND Ground Pin.2 EN Enable Pin. Drive EN pin low to turn off the device, drive it high to turn it on. Floating is default high.3 SW Power Switch Output Pin (SW).4 VIN Supply V oltage Input Pin. XL6004 operates from a 3.6V to 32V DC voltage. Bypass Vin to GND with a suitably large capacitor to eliminate noise on the input.5 FB Feedback Pin (FB). The feedback threshold voltage is 0.22V.400KHz 60V 3A Switching Current Boost LED Constant Current Driver XL6004 Function BlockFigure3. Function Block Diagram of XL6004Typical Application CircuitFigure4. XL6004 Typical Application Circuit400KHz 60V 3A Switching Current Boost LED Constant Current Driver XL6004Ordering InformationPart Number Marking ID Lead Free Lead Free Packing Type XL6004E1 XL6004E1 Tube PackageTemperature RangeXL6004TRE1XL6004E1Tape & ReelXLSEMI Pb-free products, as designated with “E1” suffix in the par number, are RoHS compliant.Absolute Maximum Ratings （Note1）ParameterSymbol Value Unit Input VoltageVin -0.3 to 36 V Feedback Pin Voltage V FB -0.3 to Vin V EN Pin VoltageV EN -0.3 to Vin V Output Switch Pin Voltage V Output -0.3 to 60 V Power DissipationP D Internally limitedmW Thermal Resistance (TO252-5L)(Junction to Ambient, No Heatsink, Free Air) R JA 50 ºC/W Operating Junction Temperature T J -40 to 125 ºC Storage TemperatureT STG -65 to 150 ºC Lead Temperature (Soldering, 10 sec) T LEAD 260 ºC ESD (HBM)>2000VNote1: Stresses greater than those listed under Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.400KHz 60V 3A Switching Current Boost LED Constant Current Driver XL6004 XL6004 Electrical CharacteristicsT a = 25℃;unless otherwise specified.Symbol Parameter Test Condition Min. Typ. Max. Unit System parameters test circuit figure4VFB FeedbackV oltageVin = 5V to 12V, V out=24VIload=100mA209 220 231 mVEfficiency ŋVin=12V ,V out=24VIout=0.5A- 92 - %Electrical Characteristics (DC Parameters)Vin = 12V, GND=0V, Vin & GND parallel connect a 100uf/50V capacitor; Iout=100mA, T a = 25℃; the others floating unless otherwise specified.Parameters Symbol Test Condition Min. Typ. Max. Unit Input operation voltage Vin 3.6 32 V Shutdown Supply Current I STBY V EN=0V 70 100 uAQuiescent Supply Current I q V EN =2V,V FB =Vin2.5 5 mAOscillator Frequency Fosc 320 400 480 Khz Switch Current Limit I L V FB =0 3 AOutput Power NMOS Rdson Vin=12V,I SW=3A110 120 mohmEN Pin Threshold V EN High (Regulator ON)Low (Regulator OFF)1.40.8VI H V EN =2V (ON) 3 10 uA EN Pin Input LeakageCurrent ILV EN =0V (OFF) 3 10 uA Max. Duty Cycle D MAX V FB=0V 90 %400KHz 60V 3A Switching Current Boost LED Constant Current Driver XL6004Schottky Diode Selection TableCurrent SurfaceMountThrough Hole VR (The same as system maximum input voltage)20V 30V 40V 50V60V1A √1N5817 1N5818 1N5819√ 1N5820 1N5821 1N5822√ MBR320 MBR330 MBR340 MBR350 MBR360 √ SK32 SK33 SK34SK35SK36 √ 30WQ03 30WQ04 30WQ05 √ 31DQ03 31DQ04 31DQ05 3A√SR302SR303SR304SR305SR306Typical System Application for VIN=5V to driver 8 x 1W series LED unitsFigure5. XL6004 System Parameters Test Circuit (5V ~ 8 x 1W LED)400KHz 60V 3A Switching Current Boost LED Constant Current Driver XL6004 Typical System Application for VIN=12V to driver 12 x 1W series LED unitsFigure6. XL6004 System Parameters Test Circuit (12V ~ 12 x 1W LED) Typical System Application for VIN=12V to driver 6 x 3W series LED unitsFigure7. XL6004 System Parameters Test Circuit (12V ~ 6 x 3W LED)400KHz 60V 3A Switching Current Boost LED Constant Current Driver XL6004 Typical System Application for VIN=24V to driver 16 x 1W series LED unitsFigure8. XL6004 System Parameters Test Circuit (24V ~ 16 x 1W LED) Typical System Application for SEPIC Buck-Boost LED DriverFigure9. XL6004 System Parameters Test Circuit (Buck-Boost LED Driver)400KHz 60V 3A Switching Current Boost LED Constant Current Driver XL6004Typical System Application for VIN=12V to driver 12 series x 24 parallel White LED ArrayTypical System Application for VIN=12V to driver 12 x 1W series LED units With Dimming FunctionFigure11. XL6004 System Test Circuit (12V ~ 12 x 1W LED with Dimming Function)400KHz 60V 3A Switching Current Boost LED Constant Current Driver XL6004Package InformationTO252-5L。
LED照明驱动选择与设计技巧
LED照明驱动选择与设计技巧
一、LED 驱动器通用要求
led 的排列方式及LED 光源的规范决定着基本的驱动器要求。
LED 驱动器的主要功能就是在一定的工作条件范围下限制流过LED 的电流，而无论输入及输出电压如何变化。
LED 驱动器基本的工作电路示意值得一提的是，在LED 照明设计中，AC-DC 电源转换与恒流驱动这两部分电路可以采用不同配置：
(1)整体式(integral)配置，即两者融合在一起，均位于照明灯具内，这种配置的优势包括优化能效及简化安装等;
(2)分布式(distributed)配置，即两者单独存在，这种配置简化安全考虑，并增加灵活性。
二、如何选择LED 驱动方式
如今在市场上典型的LED 驱动器包括两类，即线性驱动器和开关驱动器;大概的适用范围见开关稳压器的能效高，且提供极佳的亮度控制。
线性稳压器结构比较简单，易于设计，提供稳流及过流保护，且没有电磁兼容性(EMC) 问题。
在低电流LED 应用中，电阻型驱动器尽管成本较低且结构简单，但这
种驱动器在低电压条件下，正向电流较低，会导致LED 亮度不足，且在负载
突降等瞬态条件下，LED 可能受损;并且电阻是耗能元件，整个方案的能效较低，见
例如在采用DC-DC 电源的LED 照明应用中，可以采用的LED 驱动方。
灯具安规相关英语
专业灯饰英语battery light kit 电池式灯具lamp lens 灯玻璃Acid-proof paint 耐酸涂料/耐酸油漆acoustic reflection shell 声反射罩ambient brightness 室内亮度ambient color 环境色/环境颜色ambient temperature/environment temperature 环境温度ambient thermostatic switch 环境温度恒温ambient vibration 环境振动ambiguity error 模糊误差amethyst/purple 紫色ammeter 电流表ampere 电流安培amplifier/magnifier 放大器anacamptometer 反射计anaclasimeter 屈光检查计angle of adjustment （聚光灯的）调整角度angle of approach light 机场着陆指示灯angle welding 角焊angular dimension 角度标注angular frequency 波长精确度angular frequency 角频率angular unit 角度单位annealing 退火annealing lamp 炼韧灯aperiodic component 非周期部分aperiodic current 非周期电流aperiodic damping 非周期阻尼apex 顶点apparent resistance 视在电阻apparent temperature 表观温度appearance 外观appearance potential spectrometer 出现电热谱仪appearance potentical 出现电位append 附加的applicability 适用性atmosphere pressure 大气压力atomloy treatment 阿托木洛伊表面atrament 黑色物质Auto Re-connect 自动连线color/colour 颜色件derust 除锈EM 电迁fire retardant solution 防火液fireproofing grade 防火等级Firework lamp 烟花灯fitting 装配fixed 固定的fixture/luminaire 灯具flame case hardening 火焰加热表面淬火Floor lamp/standard lamp 落地灯flow 流量flower lamp 花灯FogFractional error 相对误差Fragrance Lamp 香薰灯Frame lamp 架子灯Frame lamp/Worklite（工作灯）支架灯Garden lamp/courtyard lamp/dooryard lamp/yard lamp 庭院灯gardening light 园林灯gas composition test 气体成分试验Gas discharge lamp 气体放电灯glass envelope's outer diameter 玻壳外径Glass shell 镜面外壳glass tube 玻管governor 调速器Grade of Protection 防护等级gradient 倾斜率/梯度graduated filter 渐变滤片grain 微粒Green ground lamp/grassplot lamp 草地灯inner hull 内壳板inner valve spring 气门内弹簧worldlightingtrade Skype即时通讯工具lamp cover 灯罩Lamp cup 灯杯lamp disc/lamp house 灯盘/灯罩lamp driver 灯驱动器lamp embryo 灯胚lamp fittings 灯具配件lamp holder switch 灯头开关Lamp holder/lamp jack/lamp base/lamp cap/socket pin/cap 灯座/管座/灯头/灯泡头/管帽lamp housing 灯壳lamp lumen depreciation factor，LLD 灯管流明降落系数lamp oil 灯油Lamp pole 灯杆lamp ring 灯圈lamp ring 灯圈lamp scale 灯标度lamp seat/lamp carrier 灯座Lamp shade/lamp screen/lamp-chimney/lampshade/smokebell /lamp-house 灯罩lamp shielding angle 电灯遮光角lamp switch 灯开关/电灯开关lamp test 灯测试lampadite 铜锰土lance-shaped knife 枪状刀landing-switch 层位开关Landscape Lamp/Landscape Lighting 景观灯/观景灯lap width 搭接宽度lapjoint 搭接lapping compound 研磨化合物/抛光化合物law of mass action 质量酌定律Lawn lamp 草坪灯/草地灯lay days | | laying days 允许装卸时间layout 布置lazuline 青金石蓝的LCL/less-than-carload 零担的货运LDO 低漏失LDPE 低密度聚乙烯lead 导线/铅lead wire 导线Lead-in 引入线leaf spring center bolt 钢板弹簧中心/螺栓leaf spring center bolt 钢板弹簧中心螺栓leak test 漏泄试验leakage flux 漏通量leather outer cover 皮外罩leather seat cover 皮座套LED 发光二极管led cover LED灯罩LED/Light Emitting Diode 发光二极管LED/light-emitting diode LED灯/发光二极管LED's color LED颜色left fork 叉车legend 图例length//footage/linear (or lineal) measure 长度lengthen 拉长/调整长度lens 透镜lens cover 透镜盖Lens Flare 眩光Lens Length 镜头长度lens reflector 透镜反射罩let-down flow rate 下泄流量libration 振动License Agreement 许可协议授权合约light 光light absorption coefficient 吸光系数light centre length 发光中心强度light color 光色LIGHT DEVICE OF PIT INSPECTION 底坑检修照明装置light intensity 光强度light loss factor/LLF/maintenance factor 光损失系数Light Pen 光笔light scantling vessel 轻构船light shield 遮光罩light source filter 光源滤光镜Lighting copper fitting 灯饰铜配件Lighting crystal fitting 灯饰水晶配件Lighting Effect 光照效果lighting equipment 灯饰设备lighting fittings/light fittings 灯饰配件lighting fixture 照明器材line check 小检修line conditioner 线性调节器line contact 线接触Line lamp/track lamp 吊线灯line regulation 线调整率line Supervisor 生产线主管line voltage regulation 电源电压调整率linear absorption coefticient 线性吸收系数Linear fluorescent light tube 荧光灯管Linear light/light linear 走线灯linearity temperature range 线性温度范围Lines （轮船/航空/航运等）公司lining of car 车身衬里linker 连接器liquid honing 液体喷砂法liquid temperature 流体温度liquid-crystal light modulators 液晶调制器load regulation 负载调整率Sorted by Philip from Hunan 由湖南侯松林整理Load Signal 负荷信号load test 负载测试Load testing 负载测试load-balancing 负载平衡load-carrying 承载负载的loading 装载Loading Cable. 装线电缆long perfomance life 使用寿命长久long wave 长波loop 循环loop/turn/winding 线圈mach 马赫/速度单位Mach number 马赫数machine oil 机油macula 黑点magenta 红紫色magnesium bulb/magnesian bulb 镁灯泡Magnet ring 磁环/磁性材料magnetic blow-out arrester 磁吹避雷器magnetic field sensor 磁场传感器maple 淡棕色marble 大理石Marble lamp 石艺灯Marble Stone Lamp 云石灯mark 标记Market Light 超市灯marking/sign 标志maroon 褐红色martempering 麻回火处理martensite 马氏体/硬化铁炭MA-scope MA型显示massprop 质量特性match 匹配/相符material check list 物料检查表material condition 材质条件/包容条件material condition symbols 包容条件符号/材质条件符号materials 材质Materials Library 材质库materials/stuff/ 材料/材质matte surface 无泽面mauve 紫红max allowable continuous working current 最大允许连续工作电流Max Current/current draw/maximum current 最大电流max deflection of linearity 最大线性偏移Max pressure loss 最大压力损失MAX WATTS 最大功率max working power 最大工作功率MAXmaxwell 麦克斯韦/磁通单位mBGA（Micro Ball Grid Array）微型球栅阵列封装Sorted by Philip from Hunan 由湖南侯松林整理Mean Failure Time MFT 平均故障时间Mean Time Between Failure MTBF 平均故障间隔时间Mean Time To Repair MTTR 平均故障维修时间measure 量具measurement ton,M/T 尺寸吨Measuring of clearance and creepage distance 电气间隙爬电距离测定Measuring of dissipation power 耗散功率的测定Measuring of insulating resistance 绝缘电阻测定Measuring of leakage current 漏电电流测定Measuring of noise 噪音测定Mechanical and electrical durability test 机械寿命和电寿命试验mechanical impurities 机械杂质mechanical lifetime 机械寿命Mechanical Load-Transfer Devices 机械传重设备店Mosquito killer lamp 灭蚊灯most economic control(MEC) 最经济控制most economic observing(MEO), 最经济预测mothermounting height above the work-plane 工作面上安装高度MOV 贴片压敏电阻Movable light-source 可移动光源nominal 名义上的/标称的/额定的Nominal voltage 标称电压nomogram/nomograph 列线图non-aflatoxin certificate 无黄曲霉素证明书Normal Temperature test 温升测试OLGA(Organic Land Grid Array）基板栅格阵列optical colorimetry 目视比色法optical colourimeter 光学色度计optical combiner 光组合器optical valley 光谷optical,mechanical and electronic integration 光机电一体化order polynomial 多项式的Order success rate 订单成功率Ornaments 灯饰工艺摆饰other electron component 其它电子元件outdoor lamp 室外灯具/户外灯具outdoor lighting 室外灯具/户外照明Outdoor wall lamp 户外壁灯primary color 原色（红、蓝、黄）esponse 响应restoration 修理retainer 定位器socket switch 插座式开关/灯头开关。
灯具驱动marking
附录F：WEEE标志与Wheel bin logo区别
独立式/塑壳/带端子
输出最高电压应标志为： U-OUT = …V 或者Uout = …V WEEE/II类/安全隔离/独立式/SELV 输入 热保护
输出标志有误 Ta
恒流输出 仅适用LED 认证标志
Tc
独立式/防水铝壳/电源线
2
3
4 5 6
防护范围
无防护
防止直径大于5 0mm的固体外 物侵入
防止直径大于1 2.5mm的固体 外物侵入
防止大于直径2 .5mm的固体外 物侵入
防止大于直径1 .0mm的固体外 物侵入
防止外物及灰 尘
防止外物及灰 尘
说明 对外界的人或物无特殊的防护
防止人体（如手掌）因意外而接触到电器内部的零件， 防止较大尺寸（直径大于50mm）的外物侵入
• 附录D
设备Class等级和绝缘类型（续）
• 1.基本绝缘 Basic insulation ------对防电击提供基本保护 的绝缘。
• 2.附加绝缘 Supplementary insulation ------除了基本绝缘 以外施加的独立绝缘，用以减小在基本绝缘一旦失效时减 小电击的危险。
Class等级：
III类
特点：低压输入/低压输出
附录D： 设备Class等级和绝缘类型
使用环境：--此页仅针对独立式设备
室内
IPXX
室外 IPXX
Note：室内符号在本标准中不是必要的 仅使用于室内的IP20可以不标 防水外壳通常标注IP65 or IP67
使用环境：--此页仅针对独立式设备
附录E： IP等级对照表
Euchips商标
超特克HV833 EL灯驱动器电路应用指南说明书
Supertex inc.AN-H45Application NoteHV833 EL Lamp Driver CircuitsThis application note presents eight EL driver circuits utilizing the Supertex HV833 integrated circuit. They have been optimized for a variety of applications and may be used as is or used as a starting point in designing a circuit for a particular application.When constructing and testing one of the driver circuits listed below, keep in mind that results may differ from those given due to component tolerances and lamp characteristics. When making component changes, always remove the supply voltage first. After making adjustments, bring up the supply voltage slowly (starting from the minimum required device input voltage) while monitoring input current. Excessive input current may be a good indication of connection errors or incorrect component values. A sharp rise in current usually indicates a saturated inductor. To avoid inductor saturation, use a higher current rated inductor or increase the conversion frequency by lowering the RSW resistor value.Notes:1. Lamp brightness can vary by type and manufacturer.V IN 3.3VV IN 3.3V+V IN -+V -+V IN -+V IN -Supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives an adequate “product liability indemnification insurance agreement.” Supertex inc. does not assume responsibility for use of devices described, and limits its liability to the replacement of the devices determined defective due to workmanship. No responsibility is assumed for possible omissions and inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications refer to the Supertex inc. (website: http//)©2013 Supertex inc. All rights reserved. Unauthorized use or reproduction is prohibited.Supertex inc.+V IN -+V IN 12V -。
Richtek RT9302 白色LED驱动器说明书
DS9302-04 April 2011Marking InformationFor marking information, contact our sales representative directly or through a Richtek distributor located in your area.60mA 3-Channel Pulse Dimming Current Source LED DriverFeaturesz Support Up to 3 White LEDsz Output Current up to 20mA Each Channel z Support Pulse and PWM Dimming z 40mV Typical Current Source Dropout z 1% Typical LED Current Accuracy z 0.7% Typical LED Current Matching z 16-Step Brightness Control z Low Noise and EMIz Low Shutdown Current 4μA TypicalzRoHS Compliant and 100% Lead (Pb)-FreeApplicationsz Mobile Phone, DSC, MP3z White LED Backlighting zLCD Display SupplyGeneral DescriptionThe RT9302 is a high performance constant current driver for white LED. It supports up to 3 white LEDs and regulates a constant current for uniform intensity. Each channel supports up to 20mA output current with 1% typical current accuracy and 0.7% typical current matching. The RT9302provides a 16-step brightness dimming control. The LED current can be easily configured from 1.25mA to 20mA.The dimming of white LEDs' current can be achieved by applying a pulse signal to the EN pin. The LED current can be turned off by EN pin with pull low for 20μs or longer.The typical leakage curren t is 4μA wh ile shutdown condition.RT9302 is available in a TSOT-23-8 package (1.0mm maximum height).Ordering InformationNote :Richtek products are :` RoHS compliant and compatible with the current require-ments of IPC/JEDEC J-STD-020.` Suitable for use in SnPb or Pb-free soldering processes.(TOP VIEW)TSOT-23-8Pin ConfigurationsL E D 3G N DV I NL E D 2E NN CN CL E D 1RT9302P : Pb FreeG : Green (Halogen Free and Pb Free)Typical Application CircuitFigure 1. For 3-WLEDs Application CircuitFigure 2. For 2-WLEDs Application CircuitFigure 3. Brightness control by pulse dimming. RT9302 implements 16 steps brightness control0.5us < t< 10us 0.5us < t 20us < t ENIV INV IN2.8 to 5.5VDS9302-04 April 2011Function Block DiagramENGNDAbsolute Maximum Rating s (Note 1)z Supply Input Voltage------------------------------------------------------------------------------------------------------−0.3V to 6Vz Other I/O Pin Voltages---------------------------------------------------------------------------------------------------−0.3V to 6Vz VIN, EN to GND------------------------------------------------------------------------------------------------------------6Vz Power Dissipation, P D @ T A= 25°CTSOT-23-8-------------------------------------------------------------------------------------------------------------------0.455Wz Package Thermal Resistance (Note 2)TSOT-23-8, θJA-------------------------------------------------------------------------------------------------------------220°C/Wz Lead Temperature (Soldering, 10 sec.)-------------------------------------------------------------------------------260°Cz Junction T emperature-----------------------------------------------------------------------------------------------------150°Cz Storage T emperature Range--------------------------------------------------------------------------------------------−65°C to 150°C z ESD Susceptibility (Note 3)HBM (Human Body Mode)----------------------------------------------------------------------------------------------2kVMM (Machine Mode)------------------------------------------------------------------------------------------------------200VRecommended Operating Conditions (Note 4)z Junction T emperature Range--------------------------------------------------------------------------------------------−40°C to 125°C z Ambient T emperature Range--------------------------------------------------------------------------------------------−40°C to 85°CElectrical Characteristics(V IN = 3.6V, C IN = 1uF, ESR = 0.03Ω, V F = 3.4V, I LED1 = I LED2 = I LED3 = 20mA, T A = 25°C, unless otherwise specified)Note 1. Stresses listed as the above“Absolute Maximum Ratings”may cause permanent damage to the device. These are for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability.Note 2. θJA is measured in the natural convection at T A = 25°C on a low effective thermal conductivity test board of JEDEC 51-3 thermal measurement standard.Note 3. Devices are ESD sensitive. Handling precaution recommended.Note 4. The device is not guaranteed to function outside its operating conditions.DS9302-04 April 2011Typical Operating CharacteristicsLED Current vs. Temperature1717.51818.51919.52020.52121.522-40-30-20-100102030405060708090Temperature L E D C u r r e n t (m A )(°C)Dimming Operation Time (25μs/Div)V IN = 3.7VEN (5V/Div)I LED (5mA/Div)Dimming OperationTime (100μs/Div)V IN = 3.7VEN (2V/Div)I LED (5mA/Div)Shutdown Current vs. Input Voltage01234567892.62.83 3.23.4 3.63.84 4.2 4.44.64.85 5.2Input Voltage (V)S h u t d o w n C u r r e n t (u A )LED Current vs. Input Voltage2.557.51012.51517.52022.5252.7 2.95 3.2 3.45 3.7 3.95 4.2 4.45 4.7 4.95 5.2Input Voltage (V)L E D C u r r e n t (m A)Quiescent Current vs. Input Voltage0.360.370.380.390.40.410.420.430.442.6 2.833.2 3.4 3.6 3.844.2 4.4 4.64.855.2Input Voltage (V)Q u i e s c e n t C u r r e n t (m A )DS9302-04 April 2011Turn-OffTime (5μs/Div)V IN = 3.7VEN (2V/Div)I LED(10mA/Div)I IN(50mA/Div)Turn-OnTime (5μs/Div)V IN = 3.7VEN (2V/Div)I LED(10mA/Div)I IN(50mA/Div)Dimming OperationTime (10μs/Div)V IN = 3.7VEN (2V/Div)I LED (5mA/Div)Application InformationInput UVLOThe input operating voltage range of the RT9302 is 2.8V to 5.5V. An input capacitor at the VIN pin could reduce ripple voltage. It is recommended to use a ceramic 1μF or larger capacitance as the input capacitor. This IC provides an under voltage lockout (UVLO) function to prevent it from unstable issue when startup. The UVLO threshold of input falling voltage is set at 2V typically with a hysteresis 0.2V.Output CurrentRT9302 provides a constant output current for white LED. Figure 1 shows a typical application circuit for 3 white LEDs. Each channel supports up to 20mA output current and regulates a constant current for uniform intensity. For two or one LED application, the non-used channel must be connected to V IN as shown in Fig ure 2.Brightness Dimming ControlThe RT9302 provides a 16-step brightness dimming control. The LED current can be easily configured from 1.25mA to 20mA. The dimming of white LEDs' current can be achieved by applying a pulse signal to the EN pin. Figure 3 shows the configuration of the 16-step pulse dimming control operation. The output current is set at 100% of 20mA typical output current when EN pin pull high initi ally from shutdown condition. The step change of pulse dimming can be implemented by EN pin changing with a logic Low pulse. Each step change 1/16 of full output current setting. The output current change of pulse dimming is designed in decreasing sequence in terms of (16/16, 15/16, ....., 1/16) and then (16/16, 15/16, .....) cycle by cycle. The duration of logic Low pulse is between 0.5us and 10μs. The duration of EN logic High pulse should be longer than 0.5μs.The LED current can be turned off by EN pin with pulling low for 20μs or longer. The typical leakage current i s 4μA while shutdown condition.Layout ConsiderationFor best performance, careful PCB layout is necessary. All peripheral components should be placed as close tothe IC as possible. A short connection is highly recommended. The following guidelines should be strictly followed when designing a PCB layout for the RT9302.1. All the traces of LED and V IN running from chip to LEDsshould be wide and short to reduce the parasitic connection resistance.2. Input capacitor (C IN) should be placed close to VIN andconnected to ground plane. The anodes of LEDs must be connected to C IN, not battery directly.3. The GND should be connected to a strong ground planefor heat sinking and noise protection.All the traces of LED and VINrunning fromchip to LEDs should be wide and short toreduce the parasitic connection resistance.connect to CINdirectly.ground plane for heat sinking and noiseprotection.Figure 4. PCB Layout GuideDS9302-04 April 2011Information that is provided by Richtek Technology Corporation is believed to be accurate and reliable. Richtek reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. No third party intellectual property infringement of the applications should be guaranteed by users when integrating Richtek products into any application. No legal responsibility for any said applications is assumed by Richtek.Richtek Technology CorporationHeadquarter5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C.Tel: (8863)5526789 Fax: (8863)5526611Richtek Technology CorporationTaipei Office (Marketing)5F, No. 95, Minchiuan Road, Hsintien City Taipei County, Taiwan, R.O.C.Tel: (8862)86672399 Fax: (8862)86672377Email:*********************TSOT-23-8 Surface Mount Package。
灯具的高效率 高精度离线式驱动方案
适于3~7W LED灯具的高效率、高精度离线式驱动方案在全球节能环保的大趋势下，LED照明由于具有高光效、高节能、长寿命、高可靠性等优点而广受关注。
许多国家政府已出台相关政策推进LED照明应用，例如，2011年，澳大利亚率先禁止使用白炽灯；欧盟各国、加拿大、日本等国将在2012年禁止使用白炽灯；中国政府在2011年将公布淘汰白炽灯的路线图。
在自身优势和利好政策的双重驱动下，LED灯具市场快速成长。
目前，白炽灯的光效约为13 lm/W，普通40W白炽灯的光通量大约为500 lm。
而现在已经商用的大功率LED的光效在50-150 lm/W，功率为5W的LED灯具的光通量约为500 lm。
所以3-7W的LED灯具适用于取代40-60W的白炽灯。
依据大功率LED的V-I特性，3-7W的LED灯具需要恒定的驱动电流来得到恒定的光通量。
LED驱动器成为LED灯具的必备件。
在光学、热学、机械工程、电力电子这四个专业领域，各厂商在LED灯具行业形成很清晰的产业分工。
这给传统的线性电源和开关电源厂商带来了转型升级的商业机遇。
传统的线性电源和开关电源厂商开始转战LED驱动器市场。
LED灯具的系统工程师为了增加LED散热的表面积，在传统的GU10、PAR20的灯具外形表面开槽，并且槽的深度向本体下陷，给LED驱动器留下一个狭小的空间。
这给电力电子工程师带来了新的挑战，他们需要在面积仅为10*16 mm2 PCB中应对90-264Vac宽电压输入范围、LED恒流、原副边电气隔离并满足EMI等多方面的挑战。
第一代驱动方案华润矽威在2010年推出了第一代原边反馈离线式3-7W LED驱动方案PT4203和PT4204。
PT4203是原边反馈恒流控制器，适用于7W 以下的LED球泡灯或PAR灯。
PT4204是内置MOSFET原边反馈恒流的稳流器，适用于3W的LED灯杯。
PT4203/04采用原边反馈控制LED恒流，取消了传统的二次侧的电流反馈环中的器件如侦测电流的电阻，TL431和光耦。
平板灯驱动改造方案
平板灯驱动改造方案概述平板灯是一种广泛应用于办公室、学校以及家庭的照明设备，具有高亮度、均匀光线和节能的特点。
然而，传统的平板灯驱动方案存在一些问题，如功耗高、稳定性差等。
本文将介绍一种改造方案，以提升平板灯的性能并降低功耗。
方案说明该改造方案主要包括以下几个步骤：1. 替换驱动电路传统平板灯的驱动电路常常采用电子镇流器驱动开关电源，功耗较高。
改造方案建议将电子镇流器替换为恒流驱动电源。
恒流驱动电源通过调节电流的大小来控制LED灯珠的亮度，可以有效提高灯具的稳定性和节能效果。
2. 优化散热系统平板灯的长时间使用容易导致热量积聚，影响灯具的寿命和性能。
改造方案建议优化平板灯的散热系统。
可以在灯具的背面增设散热片，增大散热面积，提升散热效果。
此外，还可以将驱动电路与LED灯板分开设计，减少驱动电路对LED灯板的热传导。
3. 引入智能调光功能传统平板灯通常只有开关控制功能，无法满足不同场景的照明需求。
改造方案建议引入智能调光功能，通过添加光敏传感器或无线控制模块，实现平板灯的自动调光。
用户可以根据需要设置不同的亮度等级或使用定时器功能，提高灯具的智能程度和使用便捷性。
4. 使用高效LED灯珠LED灯珠是平板灯的关键组件，其光效和寿命直接影响灯具的性能。
改造方案建议使用高效、低能耗的LED灯珠，例如采用大功率LED灯珠或COB封装的LED灯珠。
这些LED灯珠具有更高的亮度和较长的使用寿命，可显著提升平板灯的照明效果。
5. 使用高效电源改造方案还建议使用高效电源，以降低平板灯的功耗。
传统平板灯通常采用线性电源或开关电源。
而改进后的方案可以采用具有更高转换效率的开关电源，提高电能利用率，减少能量损耗。
实施步骤以下为改造方案的详细实施步骤：1.关闭平板灯电源，拆卸原电子镇流器驱动电路。
2.安装恒流驱动电源，连接到LED灯珠。
确保电流和电压的匹配，以保证LED灯珠正常工作。
3.在平板灯背面增设散热片，提升散热效果。
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Class等级：
III类
特点：低压输入/低压输出
附录D： 设备Class等级和绝缘类型
使用环境：--此页仅针对独立式设备
室内 室外
IPXX IPXX
Note：室内符号在本标准中不是必要的 仅使用于室内的IP20可以不标 防水外壳通常标注IP65 or IP67
使用环境：--此页仅针对独立式设备
• 附录C
安全特低电压 SLEV（续）
• 附录D
设备Class等级和绝缘类型
• Class I:接地型产品------用下列方法来获得防电击保护性能的设备：
——采用基本绝缘，而且 ——还要装有一种连接装置，使哪些在基本绝缘一旦失效就会带危险 电压的导电零部件与建筑物配线中的保护导体相连接。
注：I类设备可以带双重绝缘和加强绝缘的零部件。
直流
交流
交直流
例：恒压输出
OUTPUT: 12V
1A max
例：恒流输出
CONSTANT CURRENT OUTPUT: 12-18V 1A Uout = 21V
认证徽标：
欧盟CE认证 欧洲ENEC认证
中国CCC认证
澳洲RCM认证
特殊标志：
• 可替换的保险丝 • 故障条件下的热保护
热保护标志(不超过130C)[可安装在可燃物表面面] 热保护温度值
设备类别：
对比两种线：
不可作独立式
可作独立式
内部线
可触及部分
绝缘层
带电导体
Class等级：
I类
特点：高电压输入/带接地线 通常带金属外壳的独立式驱动属于I类 接地符号画在接 内装式驱动接地 端仍需要标注接 地符号
Class等级：
II类
特点：高电压输入/不带接地线/适用于独立式
输出最高电压应标志为： U-OUT = …V 或者Uout = …V 恒流输出 独立式/WEEE/安全隔离
Ta Tc 接地 无商标，应附上商标 LED驱动应注明： LED MODULES ONLY
认证标志 输出 限室内符号有误/防水外壳/SELV
输入端子裸露的塑料外壳电源(内装式) EUP50R-2WMC-0
Euchips商标
Input: 100-240V～ 50/60Hz 2A PF>0.9 η>0.9 OUTPUT: 12V 4.15A*3 150W LED modules only 产品名称可以加上： DALI/Touch Dimming LED Driver Support内容写进说明书 保护 类型 尽量 写进 说明 书 SELV
Tc
带端子的金属外壳恒压电源(内装式)
带端盖的塑料外壳恒流电源(I类独立式) EUP15T-1W350C-0
Euchips商标
Input: 100-240V～ 50/60Hz 0.2A OUTPUT: 350mA 43V 15W Uout=50V max CC Mode for LED modules only
• WEEE标志(EN)
附录F：WEEE标志与Wheel bin logo区别
独立式/塑壳/带端子
输出最高电压应标志为： U-OUT = …V 或者Uout = …V WEEE/II类/安全隔离/独立式/SELV
输入 恒流输出 仅适用LED 认证标志
热保护
输出标志有误
Tc
Ta
独立式/防水铝壳/电源线
低压输入端子裸露的控制器(内装式) DIM118B
Euchips商标 SIGNAL INPUT
Input: 12-24V 20A Output: 12/24V For LED Modules only
Dimmer
OUTPUT
Ta Tc
SELV
低压输入端子裸露的控制器(内装式)
带端子的金属外壳恒压电源(内装式) EUP150D-3W12V-0
• 附录E
IP等级对照表
数字 0 1 防护范围 无防护 防止直径大于5 0mm的固体外 物侵入 防止直径大于1 2.5mm的固体 外物侵入 防止大于直径2 .5mm的固体外 物侵入 防止大于直径1 .0mm的固体外 物侵入 防止外物及灰 尘 防止外物及灰 尘 说明 对外界的人或物无特殊的防护 防止人体（如手掌）因意外而接触到电器内部的零件， 防止较大尺寸（直径大于50mm）的外物侵入 防止人的手指接触到电器内部的零件，防止中等尺寸 （直径大于12.5mm）的外物侵入 防止直径或厚度大于2.5mm的工具、电线及类似的小型 外物侵入而接触到电器内部的零件 防止直径或厚度大于1.0mm的工具、电线及类似的小型 外物侵入而接触到电器内部的零件 完全防止外物侵入，虽不能完全防止灰尘侵入，但灰 尘的侵入量不会影响电器的正常运作 完全防止外物及灰尘侵入
• 1.基本绝缘 Basic insulation ------对防电击提供基本保护 的绝缘。 • 2.附加绝缘 Supplementary insulation ------除了基本绝缘 以外施加的独立绝缘，用以减小在基本绝缘一旦失效时减 小电击的危险。 • 3.双重绝缘 Double insulation ------由基本绝缘加上附加绝 缘构成的绝缘。 • 4.加强绝缘 Reinforced insulation ------一种单一的绝缘结 构，在本标准规定的条件下，其所提供的防电击的保护等 级相当于双重绝缘。
附录E： IP等级对照表
输出类型：
• 恒压： 额定输出功率/额定输出电压/额定输出电流
最高输出电压 U-OUT = …V 或者Uout = …V
• 恒流：
额定输出功率/额定输出电压/额定输出电流
最高输出电压 U-OUT = …V 或者Uout = …V 一般注明CONSTANT CURRENT
• 电流符号
2
3
4 5 6
• 附录E
IP等级对照表（续）
数 字 0 防护范围 无防护 防止水滴侵 入 倾斜15度时， 仍可防止水 滴侵入 防止喷洒的 水侵入 防止飞溅的 水侵入 防止喷射的 水侵入 防止大浪侵 入 防止浸水时 水的侵入 防止沉没时 水的侵入 说明 对水或湿气无特殊的防护 垂直落下的水滴（如凝结水）不会对电器造 成损坏 当电器由垂直倾斜至15度时，滴水不会对电 器造成损坏 防雨或防止与垂直的夹角小于60度的方向所 喷洒的水侵入电器而造成损坏 防止各个方向飞溅而来的水侵入电器而造成 损坏 防止来自各个方向由喷嘴射出的水侵入电器 而造成损坏 装设于甲板上的电器，可防止因大浪的侵袭 而造成的损坏 电器浸在水中一定时间或水压在一定的标准 以下，可确保不因浸水而造成损坏 电器无限期沉没在指定的水压下，可确保不 因浸水而造成损坏
• 附录C
安全特低电压 SLEV
定义： • SELV (safety extra low voltage):通过IEC 61558-2-6中的安全隔离变压器 与带电部件隔开的特低电压(ELV)。
ELV： r.m.s低于50V的交流电或者peak低于140V且r.m.s低于120V的直流电 。
（基于IEC 60449电压带1）
Voltage (range) 100 V 110 V 127 V / 220 V 220 V 220V / 230 V 220 – 240 V 230 V 240 V
3. 4. 5.
• 附录B
确定Tc的方法
试验方法 1. EUT(受试验设备，下同)在允许使用的最高环境温度Ta中放置1-4hrs. 2. 在上述环温下EUT输入端接入额定电压，额定频率，输出端连接在该 环温下最大额定负载。EUT持续正常工作至温度稳定。 3. 用热电偶监测EUT外壳外表面各处的温度，取最高值记录为Tc.
附录A 常见国家电压(范围)要求
功率因素 效率
通用要求：
允许使用的最高环境温度 -- Ta…℃
设备工作时外壳表面出现的最高温度 -- Tc…℃
附录B 确定Tc的方法
安全特低电压--
SELV
安全隔离变压器 通常输入高压输出端为低压时，均可标注 注意！标注 符号的设备不标注
附录C 安全特低电压的定义
通用要求：
注1. EUT可能有多个输入电压(范围)/输入频率(范围)，应选择最高电压(频率)，最低电压(频 率)与典型值分别试验。 注2. 过高的额定输出功率或过高的Ta可能导致EUT工作不正常，此情形下需要修改额定输出 参数或Ta. 注3. 对在Ta下额定输出功率小于常温或低温下额定输出功率的EUT，应再次在可以达到最高 额定功率的环境温度最大值试验，取多次试验条件的Tc最大值。
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• 附录F
WEEE和Wheel bin logo区别
Ta：
Tc:…℃
放左侧输 入端附近
SELV
带端盖的塑料外壳恒流电源(I类独立式)
• 附录A
标准体系中常见国家的电压(范围)要求
Nation(s) 日本 台湾 美国 加拿大 巴西 中国 香港 巴林 沙特 南非 以色列 科威特 伊拉克 欧盟 英国 印度 澳洲 德国
注：
1. 2. 出口电源必须符合出口国电压要求。如，出口巴西的某电源额定输入电压(范围)必须 涵盖 127 V或者220 V. 例外：出口以色列、 科威特、 伊拉克等国的电源额定电压范围必须涵盖220 – 240 V 例外：出口德国的电源 如设计标准按照EN，为CE或ENEC认证，则额定输入电压必须 涵盖230 V（参考欧盟） 如设计标准同时按照EN和EK1决议，为GS或VDE认证，则需 要同时涵盖230 V和240 V电压。 频率暂缺信息，同一电压体系的国家，频率可能不同。故不可混为一类。 欧盟标准暂未考虑成员国国家偏差。 澳洲指澳大利亚和新西兰两国。
Euchips商标
INPUT: 100-240V～ 50/60Hz 0.5A PF>0.9 OUTPUT: 50W 500/600/700/850 mA (Uout=50V max) CC model for LED modules only