IRS2092应用
IR2092应用
1）对于过流保护设置值问题：电流保护阀值选取:流过FET 的电流包括音频输出和LPF 滤波网络电流，所以；实际要求设置值要高于音频电流峰值。
我比较喜欢这样选取：功放饱和输出时的最大输出电流X1.5；2）RDSON选取：可以根据实际最高工作温度选取，通常可以取85C 时的RDSON 值；3）有了电流和RDSON，就可以选IC 的保护值了。
这里需要注意的是大电流下的FET 开关波型应该是很干净的方波，如果有毛刺的话，可以适当增加栅电阻和优化退耦结构。
对于直流输出问题：可能重载时；电源电压跌落，但；由于变压器或负载正负不对称，正负电源电压跌落不一致，致使功放某一半波提前饱和输出了。
出现这问题时；通常不是功放问题，你可以略微提高电源电压增加水塘电容试试。
2）一般理想的工程条件下，半桥工作的实际死区时间越短越好，最小可以设置到10 纳秒3）IRS2092S 做全频功放时应注意的问题，最好能选择线性度比较好的元件，调制频率选择在300~400KHz，适当匹配LC 滤波器的L/C 的值，可以比较要的解决问题。
推荐L 选取18~22μH。
如果要进一步改善平坦度，L 可以取到10μH，同时；调制频率提高到400KHz 左右。
4）PWM 调制及咔哒声抑制问题：电路的过度过程不匹配，前级电源电压降落引起的电压飘逸被后级放大造成的。
调整一下时续可以解决问题。
另：IRS2092/S 已经在IC 内加入开关机消“咔哒”功能。
一般无需外加电路。
5）针对不同Qg 的MOS，栅电阻怎么选择，Qg 太大2092 发热非常快的解决：可以用降频或增加栅电阻方式降低IRS2092 的温升，一般；Qg 和开关频率并不是IC 发热的主要原因，发热可能更多的源于开关管产生的电压过冲，改善PCB 布线和退耦可以抑制IC 发热。
对于300W 额定输出功率，推荐IRFI4020-117P会更好些。
6）做500W的功放可以用IRS2092 搭配IRF6785MTRPbF 两并，PCB 设计合理的话；THD+N可以达到0.02%以上的水平。
IR-IRS2092-1700W单路D类音频功率放大方案
IR-IRS2092-1700W单路D类音频功率放大方案IR IRS2092 1700W单路D类音频功率放大方案2012-10-30 22:37:47| 分类：默认分类|字号订阅IR公司的 IRS2092是集成了PWM调制器和保护的高压高性能D类音频放大器，工作频率高达800kHz，±100 V额定电压是可提供500W输出功率，主要用在家庭影院，密你立体声系统，通用音频放大器等。
本文介绍IRS2092主要特性，方框图，典型连接图，典型应用电路图以及1700W单路D类音频功率放大器框图，主要特性，电路图和材料清单。
The IRS2092 is a high voltage, high performance Class D audio amplifier driver with PWM modulator and protection.In conjunction with two external MOSFET and a few external components, a complete Class D audio amplifier with protection can be realized.International Rectifier’s proprietary noise isolation technology allows high current gate drive stage and high speed low noise error amplifier reside on a single small silicon die.Open elements of PWM modulator section allow flexible PWM topology implementation.IRS2092主要特性：? Integrated analog input Class D audio amplifier driver in a small 16 pin package? Floating inputs enable easy half bridge implementation? Programmable bidirectional over-current protection with self-reset function? Programmable preset deadtime for improved THD performances? Start and stop click noise reduction? High noise immunity? ±100 V ratings deliver up to 500 W in output power? Operates up to 800 kHz? RoHS compliantIRS2092典型应用：? Home theater systems? Mini component stereo systems? Powered speaker systems? General purpose audio power amplifiers图1。
输出波形可控的高精度数控电源设计
输出波形可控的高精度数控电源设计方案设计系统的总体设计方案如图1所示。
系统工作前在触摸液晶屏上设置电源输出波形、频率以及电压幅值，确定后触摸液晶屏将电源输出参数通过串口通信传递到微处理器，微处理根据设置参数控制信号发生器并经电压幅值调节得到预设模拟信号，最后经过功率放大电路之后驱动负载。
同时，A/D转换电路将负载两端电压以及流经负载的电流进行模/数转换，经微处理器进行数据处理后，在触摸液晶上显示电源当前输出状态。
E2PROM存储默认输出波形类型、幅值和频率的参数值。
图1 电源系统原理框图1.2 直接数字频率合成原理传统的信号发生器采用分立元件以及模拟集成电路，以RC或LC自激振荡为主振级的信号发生器，虽然结构简单，频率范围宽，但是还是克服不了稳定性、准确性差的问题。
石英晶体振荡器虽然稳定度和准确度高，但它的频率不可调，工作场合比较单一。
针对传统信号发生器的缺陷，本设计中采用DDS来产生正弦波。
DDS基本结构包括参考时钟、相位累加器、正弦查询表、D/A转换器和低通滤波器5个部分组成，它是采用高稳定的参考时钟量化抽样时间间隔，利用信号相位与时间成线性关系的特性，直接对所需信号进行抽样、量化和映射，输出频率可调的模拟信号。
2 主要硬件单元设计本设计硬件部分主要由DDS信号发生器电路、电压幅值调节电路和D类功率放大电路等组成。
2.1 DDS信号发生器电路电源输出波形是由信号发生器经电压幅值调节电路和功率放大电路之后得到，所以信号发生器的性能高低是决定其频率精度以及稳定性的重要因素之一。
因此，设计一个高频率精度、稳定性强的信号发生器是保证本电源性能的关键。
本设计采用美国A/D公司的DDS芯片AD9850，通过微处理器程序控制和处理AD9850的32位频率控制字，得到正弦波和方波，再配合积分电路得到三角波以及锯齿波。
AD9850可实现全数字编程控制的频率合成，通过内部高速比较器可直接输出方波。
AD9850的输出频率：[fout=M·fclk232] （1）式中：fclk为时钟频率；M为频率控制字，频率控制字M可表达为fout×[232fclk]，所以根据预设的输出频率可以计算出相应的频率控制字。
irs2092s原理
irs2092s原理
IRS2092S 是一种高性能数字功率放大器的集成电路，其原理基于谐振控制技术。
该芯片可处理音频信号，将其转换成高质量的输出功率，可以驱动千瓦级的负载。
IRS2092S 的工作原理是将音频信号转换成数字信号，通过高速的PWM技术将数字信号转换成PWM信号，然后通过谐振电路将PWM信号对负载进行调制，得到高品质，高效率的输出功率。
与传统的功率放大器相比，IRS2092S 具有以下优点：
1.高效率：采用PWM 技术，可实现高效率的功率转换；
2.高保真性：数字信号处理可以保证输出信号的高保真性；
3.灵活性：可按照不同的应用需求进行配置和调整；
4.可靠性：采用先进的保护电路，可以保证芯片和设备的可靠性和稳定性。
IRS2092S 通常应用于家庭影院、公共场所、演出场所等需要高品质声音的场合。
IRS2092S D类功放 pdf
September 2007IRS2092PROTECTED DIGITAL AUDIO AMPLIFIERFeatures•Integrated analog input Class D audio amplifier driver in a small 16 pin package• Floating inputs enable easy half bridgeimplementation• Programmable bidirectional over-currentprotection with self-reset function• Programmable preset deadtime for improvedTHD performances• Start and stop click noise reduction • High noise immunity• ±100 V ratings deliver up to 500 W in outputpower• Operates up to 800 kHz • RoHS compliantTypical Applications• Home theater systems• Mini component stereo systems • Powered speaker systems•General purpose audio power amplifiersProduct SummaryV OFFSET (max)± 100 VIo+ 1.0 AGate driverIo - 1.2 ASelectable Deadtime 25/40/65/105 ns OC protection delay (max) 500 ns DC offset <20 mV PWM frequency ~800 kHz Error amplifier open loop gain >60 dBTHD+N* (1kHz, 50W, 4Ω) 0.01 % Residual Noise*(AES-17 Filter)200 µVrms* measured with recommended circuitPackage OptionsSOIC16N PDIP16Table of Contents Page Description 3 Simplified Block Diagram 4 Typical Application Diagram 4 Qualification Information 5 Absolute Maximum Ratings 6 Recommended Operating Conditions 7 Electrical Characteristics 8 Waveform Definitions 10 Functional Block Diagram 11 Input/Output Pin Equivalent Circuit Diagram 12 Lead Definitions 13 Lead Assignments 13 Package Details 14 Tape and Reel Details 16 Part Marking Information 17 Ordering Information 18DescriptionThe IRS2092 is a high voltage, high performance Class D audio amplifier driver with PWM modulator and protection. In conjunction with two external MOSFET and a few external components, a complete Class D audio amplifier with protection can be realized.International Rectifier’s proprietary noise isolation technology allows high current gate drive stage and high speed low noise error amplifier reside on a single small silicon die.Open elements of PWM modulator section allow flexible PWM topology implementation.ΩRefer to IRAUDAMP5 reference design for details.Qualification Information†Industrial††(per JEDEC JESD 47E)Qualification Level Comments: This IC has passed JEDEC’s Industrialqualification. IR’s Consumer qualification level is grantedby extension of the higher Industrial level.SOIC16N Moisture Sensitivity LevelDIP16MSL3†††(per IPC/JEDEC J-STD-020C)Machine ModelClass B(per JEDEC standard JESD22-A114D)Human Body ModelClass 2(per EIA/JEDEC standard EIA/JESD22-A115-A)ESDCharged Device ModelClass IV(per JEDEC standard JESD22-C101C)IC Latch-Up Test Class I, Level A (per JESD78A)RoHS Compliant Yes†Qualification standards can be found at International Rectifier’s web site /††Higher qualification ratings may be available should the user have such requirements. Please contact your International Rectifier sales representative for further information.†††Higher MSL ratings may be available for the specific package types listed here. Please contact your International Rectifier sales representative for further information.Absolute Maximum RatingsAbsolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. Allvoltage parameters are absolute voltages referenced to COM; all currents are defined positive into any lead.The Thermal Resistance and Power Dissipation ratings are measured under board mounted and still airconditions.Symbol Definition MinMaxUnits V B High side floating supply voltage -0.3 220V S High side floating supply voltage (Note2) V B -20 V B +0.3V HO High side floating output voltage V S -0.3 V B +0.3V CSH CSH pin input voltage V S -0.3 V B +0.3V CC Low side fixed supply voltage (Note2) -0.3 20V LO Low side output voltage -0.3 Vcc+0.3V AA Floating input positive supply voltage (Note2) (See I AAZ) 210V SS Floating input negative supply voltage (Note2)-1(See I SSZ)GND +0.3V GND Floating input supply ground voltageV SS -0.3(See I SSZ)V AA +0.3(See I AAZ)VI IN-Inverting input current (Note1) --- ±3 mAV CSD SD pin input voltage V SS -0.3 V AA +0.3V COMP COMP pin input voltage V SS -0.3 V AA +0.3V DT DT pin input voltage -0.3 V CC +0.3V OCSET OCSET pin input voltage -0.3 V CC+0.3VI AAZ Floating input positive supply zener clamp current (Note2) --- 20I SSZ Floating input negative supply zener clamp current (Note2) --- 20I CCZ Low side supply zener clamp current (Note3) --- 10I BSZ Floating supply zener clamp current (Note3) --- 10I OREF Reference output current --- 5mAdV S/dt Allowable Vs voltage slew rate --- 50 V/ns dV SS/dt Allowable Vss voltage slew rate (Note3) --- 50 V/msSOIC16N --- 1.0 Pd Maximum power dissipation @ T A ≤ +25°CDIP16 --- 1.6WSOIC16N --- 115 Rth JA Thermal resistance, Junction to ambientDIP16 --- 75°C/W T J Junction Temperature --- 150 °C T S Storage Temperature -55 150 °C T L Lead temperature (soldering, 10 seconds) --- 300 °CNote1:IN- contains clamping diode to GND.Note2: V DD – IN+, GND -V SS, V CC-COM and V B-V S contain internal shunt zener diodes. Please note that the voltage ratings of these can be limited by the clamping current.Note3: For the rising and falling edges of step signal of 10 V. V SS=15 V to 200 V.Recommended Operating ConditionsFor proper operation, the device should be used within the recommended conditions below. The Vs and COM offset ratingsare tested with supplies biased at V AA-V SS=10 V, V CC=12 V and V B-V S=12 V. All voltage parameters are absolute voltagesreferenced to COM; all currents are defined positive into any lead.UnitsMax.Symbol Definition Min.V B High side floating supply absolute voltage V S +10 V S +18V V S High side floating supply offset voltage (Note 1) 200I AAZ Floating input positive supply zener clamp current 1 11mAI SSZ Floating input negative supply zener clamp current 1 11V SS Floating input supply absolute voltage 0 200V HO High side floating output voltage Vs V BV CC Low side fixed supply voltage 10 18V LO Low side output voltage 0 V CCV V GND GND pin input voltage V SS(Note 3)V AA(Note3)V IN-Inverting input voltage V GND -0.5 V GND +0.5V CSD CSD pin input voltage V SS V AAV COMP COMP pin input voltage V SS V AAC COMP COMP pin phase compensation capacitor to GND 1 - nFV DT DT pin input voltage 0 V CC V0.8mAI OREF Reference output current to COM (Note 2) 0.3V OCSET OCSET pin input voltage 0.5 5V V CSH CSH pin input voltage Vs V BdVss/dt Allowable Vss voltage slew rate upon power-up (Note4) - 50 V/msI PW Input pulse width 10 (Note 5) - nsf SW SwitchingFrequency - 800 kHzTemperature -40 125 °C T A AmbientNote 1:Logic operational for Vs equal to –5 V to +200 V. Logic state held for Vs equal to –5 V to –V BS.Note 2: Nominal voltage for V REF is 5.1 V. I OREF of 0.3 – 0.8 mA dictates total external resistor value on VREF to be 6.3 kΩ to16.7 kΩ.Note 3: GND input voltage is limited by I AAZ and I SSZ.Note 4: V SS ramps up from 0 V to 200 V.Note 5: Output logic status may not respond correctly if input pulse width is smaller than the minimum pulse width.Electrical CharacteristicsV CC ,V BS = 12 V, V SS =V S =COM=0 V, V AA =10 V, C L =1 nF and T A =25 °C unless otherwise specified. SymbolDefinition Min Typ Max Units Test ConditionsLow Side SupplyUV CC+ Vcc supply UVLO positive threshold 8.4 8.9 9.4UV CC- Vcc supply UVLO negative threshold 8.2 8.7 9.2UV CCHYS UV CC hysteresis - 0.2 - V I QCC Low side quiescent current - - 3 mA V DT =V CC V CLAMPL Low side zener diode clamp voltage 19.6 20.4 21.6 VI CC =5 mA High Side Floating SupplyUV BS+ High side well UVLO positive threshold 8.0 8.5 9.0UV BS- High side well UVLO negative threshold 7.8 8.3 8.8 UV BSHYS UV BS hysteresis - 0.2 - V I QBS High side quiescent current - - 1 mAI LKH High to Low side leakage current - - 50 µA V B =V S =200 V V CLAMPH High side zener diode clamp voltage 19.6 20.4 21.6 VI BS =5 mAFloating Input SupplyUV AA+ VA+, VA- floating supply UVLO positivethreshold from V SS8.2 8.7 9.2 V SS =0 V, GND pinfloatingUV AA-VA+, VA- floating supply UVLO negative threshold from V SS7.7 8.2 8.7V SS =0 V, GND pinfloatingUV AAHYS UV AA hysteresis - 0.5 -V V SS =0 V, GND pinfloatingI QAA0 Floating Input positive quiescent supply current- 0.5 2V AA =10 V, V SS =0 V,V CSD =VSSI QAA1 Floating Input positive quiescent supply current- 8 11V AA =10 V, V SS =0 V,V CSD =VAAI QAA2 Floating Input positive quiescent supply current- 8 11mA V AA =10 V, V SS =0 V,V CSD =GND I LKM Floating input side to Low side leakage current- - 50 µAV AA =V SS =V GND =100 VV CLAMPM+ V AA floating supply zener diode clamp voltage, positive, with respect to GND 6.0 7.0 8.0I AA =5 mA, I SS =5 mA,V GND =0 V, V CSD =VSSV CLAMPM-V SS floating supply zener diode clamp voltage, negative, with respect to GND -8.0 -7.0 -6.0VI AA =5 mA, I SS =5 mA,V GND =0 V, V CSD =VSS Audio Input (V GND =0, V AA =5V, V SS =-5V)V OS Input offset voltage -15 0 15 mV I BIN Input bias current - - 40 nABWSmall signal bandwidth- 9-MHz C COMP =2 nF, Rf=3.3 k ΩV COMP OTA Output voltage VAA-1 - VSS+1Vg m OTA transconductance - 100 - mS V IN-=10 mVG V OTA gain 60 - - dB V NrmsOTA input noise voltage- 250 - mVrms BW=20 kHz, Resolution BW=22 Hz Fig.5 SR Slew rate - ±5 - V/us C COMP =1 nFCMRR Common-mode rejection ratio - 60 - PSRR Supply voltage rejection ratio-65-dBPWM comparatorVth PWM PWM comparator threshold in COMP - (V AA -V SS )/2 - V f OTACOMP pin star-up local oscillation 0.7 1.0 1.3 MHz V CSD =GNDfrequencyProtectionV REF Reference output voltage 4.8 5.1 5.4 I OREF =0.5 mAVth OCL Low side OC threshold in Vs 1.1 1.2 1.3OCSET=1.2 V,Fig.6Vth OCH High side OC threshold in V CSH 1.1+ Vs 1.2+ Vs 1.3+ Vs Vs=200 V, Vth1 CSD pin shutdown release threshold 0.62xV DD 0.70xV DD 0.78xV DD Vth2 CSD pin self reset threshold 0.26xV DD 0.30xV DD 0.34xV DD VI CSD+ CSD pin discharge current 70 100 130 V CSD = V SS +5 VI CSD- CSD pin charge current 70 100 130 µAV CSD = V SS +5 V t SD Shutdown propagation delay from V CSD >V SS + Vth OCH to Shutdown- - 250t OCH Propagation delay time from V CSH >Vth OCH to Shutdown- - 500 Fig.3t OCL Propagation delay time from Vs> Vth OCLto Shutdown- - 500 ns Fig.4Gate DriverIo+ Output high short circuit current (Source) - 1.0 - A Vo=0 V, PW<10 µs Io- Output low short circuit current (Sink) - 1.2 - A Vo=12 V, PW<10 µsV OL Low level out put voltageLO – COM, HO - VS- - 0.1V OH High level out put voltageVCC – LO, VB - HO- - 1.4V Io =0 Aton High and low side turn-on propagation delay- 360 -V DT = V CCtoff High and low side turn-off propagation delay- 335 -V DT = V CCtr Turn-on rise time - 20 50 tf Turn-off fall time - 15 35 DT1 Deadtime: LO turn-off to HO turn-on(DT LO-HO ) & HO turn-off to LO turn-on (DT HO-LO )15 25 35V DT >V DT1,DT2 Deadtime: LO turn-off to HO turn-on(DT LO-HO ) & HO turn-off to LO turn-on (DT HO-LO )25 40 55V DT1>V DT > V DT2,DT3 Deadtime: LO turn-off to HO turn-on(DT LO-HO ) & HO turn-off to LO turn-on (DT HO-LO )50 65 85V DT2>V DT > V DT3,DT4 Deadtime: LO turn-off to HO turn-on(DT LO-HO ) & HO turn-off to LO turn-on (DT HO-LO )V DT = V DT485 105 135nsV DT3>V DT > V DT4,V DT1 DT mode select threshold 2 0.51xVcc 0.57xVcc 0.63xVcc V DT2 DT mode select threshold 3 0.32xVcc 0.36xVcc 0.40xVcc V DT3DT mode select threshold 4 0.21xVcc 0.23xVcc 0.25xVcc VWaveform DefinitionsVth1t SD90%CSDHO/LOFigure 1: Switching Time Waveform Definitions Figure 2: CSD to Shutdown Waveform DefinitionsVth OCLt OCL90%VSLOVth OCHt OCH90%CSHHOVSFigure 3: V S > Vth OCL to Shutdown Waveform Figure 4: V CSH > Vth OCH to Shutdown WaveformFigure 5: OTA input noise voltage mesurent circuitLOW SIDE CSLead Definitions: IRS2092Pin # Symbol Description1 VAA Floating input positive supply2 GND Floating input supply return3 IN- Analog inverting input4 COMP Phase compensation input, comparator input5 CSD Shutdown timing capacitor6 VSS Floating input negative supply7 VREF 5V reference voltage to program OCSET pin 8 OCSET Low side over current threshold setting 9 DT Deadtime program input 10 COM Low side supply return 11 LO Low side output 12 VCC Low side supply13 VS High side floating supply return 14 HO High side output15 VB High side floating supply16 CSHHigh side over current sensing inputLead AssignmentsVAA GND IN-OCSETCOM COMP CSD LO VCC VREF HO VS VSS CSH VB DTPDIP16 and SOIC16NPackage Details: PDIP16Package Details: SOIC16NTape and Reel Details: SOIC16NCPart Marking InformationOrdering InformationStandard PackBase Part NumberPackage TypeForm QuantityComplete Part NumberPDIP16 Tube/Bulk 25IRS2092PBF Tube/Bulk 45 IRS2092SPBF IRS2092SOIC16NTape and Reel2500IRS2092STRPBFThe information provided in this document is believed to be accurate and reliable. However, International Rectifier assumes no responsibility for the consequences of the use of this information. International Rectifier assumes no responsibility for any infringement of patents or of other rights of third parties which may result from the use of this information. No license is granted by implication or otherwise under any patent or patent rights of International Rectifier. The specifications mentioned in this document are subject to change without notice. This documentsupersedes and replaces all information previously supplied.For technical support, please contact IR’s Technical Assistance Center/technical-info/WORLD HEADQUARTERS:233 Kansas St., El Segundo, California 90245Tel: (310) 252-7105。
二氧化碳传感器 分类 应用场景 工作原理
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基于IRS2092驱动器IC的D类音频功率放大器
可 知 ， 死 区 时 间 为 ４ ｎ ：再 如 ，若 选 取 电流 检测在 引脚 Ｃ Ｈ 内部 有一个 固定 在 Ｄ ５ｓ Ｓ ４是 必要的。扣除 Ｄ ４约 ０６ ． Ｖ的正 向压
音 频 功 率 放 大 器 ， 输 出 功 率 范 围 为
一
△Ｐ ＷＭ 调制器 、 电平移位 器、 区时 死
基本 应用 电路
基 于 ＩＳ ０ ２和 数 字 音 频 双 功 率 Ｒ２９
２ — ０ Ｗ ，总谐波失真加噪 声（ Ｈ Ｎ） 间及 ＯＣ ５ ５０ Ｔ Ｄ＋ Ｐ和 Ｕ Ｐ电路、 ／ Ｖ 高 低端 ＭＯＳ —
２ 区时间选择 ＩＳ ０ ２ ． 死 Ｒ ２ ９ 中高、 低端 Ｕ１引脚 Ｈ Ｏ和 Ｌ 上 的输 出驱 动器 高 ／ 驱动信号 之间的死区时间取决于 引脚 Ｄ Ｏ Ｔ Ｓ Ｅ ，并确 保两 个 ＭＯＳ 上 的电压 Ｖ 如图 ３所示。而 Ｖ — ＩＳ ０ ２采 用 １ 引脚 无铅 封 装 （ Ｒ ２９ ６ 引 低 端功率 ＭＯ Ｆ Ｔ ， 甜又取决
Ｒ２ ６ ８ ６＝ ． ｋ０ ， ７ ３ ９ Ｒ２ ＝ ． ｋＯ ， Ｖ Ｏ ３６ ｃ， ． Ｖｃ
・
新器 件应 用 ・
基 于 Ｉ ２９ ＲＳ ０ ２驱 动 器 Ｉ 的 Ｄ 类 音 频 ｃ 功率放大器
藏取光 利 用美 国国际 整流 器公 司 的数字 音 音 频 放 大 器 的 高 压 （ 达 ２ ０ 直 ０ Ｖ） 高 速 大 了 的 Ｐ Ｍ 波 形 ，经 Ｌ 和 Ｏ１ 成 的 Ｗ １ ２组 频 驱 动 器 ＩＳ ０ ２和 数 字 音 频 双 功 率 ＭＯＳ Ｅ Ｒ２９ Ｆ Ｔ驱动器 Ｉ。 ＩＳ ０ ２含 有输入 低通滤波器 （ Ｐ ） Ｃ Ｒ ２９ Ｌ Ｆ 滤波还原 为模拟音频信 ＭＯＳ Ｅ ， Ｆ Ｔ 可以设计单通道 或两通道 Ｄ类 运 算 放 大 器 、 模 拟 输 入 自振 荡 二 阶 号 驱 动 扬 声器 。
ISR2092S-评估板设计-iraudamp7s
IRAUDAMP7S REV 1.3
Page 1 of 42
Item
Table of Contents
Page
1
Introduction of scalable design ………………………………………………….. 3
2
Power table values for each power model……………………………………… 4
±70V
±60V ~ ±80V
40
Notes:
• All the power ratings are at clipping power (THD+N = 1 %). To estimate power ratings at THD+N=10%, multiply them by 1.33
• See Table 5 on page 36 for the complete listing of components table.
IRAUDAMP7S REV 1.3
Page 2 of 42
Introduction
The IRAUDAMP7S reference design is a two-channel Class D audio power amplifier that features output power scalability. The IRAUDAMP7S offers selectable half-bridge (stereo) and full-bridge (bridged) modes.
7
Clipping characteristics…………………………………………………………… 14
D类音频放大器的程控交流电源的设计IR2092 LM1875
D类音频放大器的程控交流电源的设计IR2092 LM18752010-10-20 14:00:03| 分类：默认分类|字号订阅系统结构与控制原理升压+全桥逆变器和输出LC滤波器是大功率程控交流电源极为常用的拓扑之一。
如图1所示，这是一种两级非隔离拓扑，其第一级是升压级，用于把模块整流电压升压到实际峰值直流电压（＞325V）；第二级是逆变级，用于把峰值直流电压转变为交流电压，再经LC滤波器得到50Hz的交流输出电压。
全桥逆变器一般采用单极性控制方式，其特点是高频臂的两只功率管以较高的开关频率互补开关，保证可以得到理想的正弦输出电压波形；另两只功率管以较低的输出电压基波频率工作，从而很大程度上减小了开关损耗。
该全桥逆变器并不是一个桥臂始终为低频(输出基频)，另一个桥臂始终为高频（载波频率)，而是以半个输出电压周期切换工作，即同一个桥臂前半个周期工作在低频，后半周则工作在高频，这样就保证两个桥臂功率管工作在均衡状态，提高了系统的可靠性。
虽然该电路效率较高，但需要解决输入/输出之间的隔离问题。
由于电缆测试仪的程控交流电源功率较小，若采用上述方案，则体积较大，且控制复杂。
图1 升压+全桥逆变器若采用诸如LM1875单片集成功率放大器件，用±30V供电时，最大输出功率可达30W。
其接法同TDA2030相似，有单双电源接法和BTL接法。
BTL接法采用两片LM1875，连接成桥式电路，两边的电路结构和参数完全相同，右边的集成电路由左边的集成电路通过一负反馈电阻控制，反之亦然。
它可获得更高的输出功率。
如图2所示，二极管1N4007用于防止输出感性负载产生过电压而损坏器件。
电路的放大倍数可由输出端至反相输入端的反馈电阻来决定。
A类、B类、AB类等功放均是线性功放，信号总是停留在放大区，输出晶体管担当线性调整器来调整输出电压，其结果是降低了效率，限制了输出功率。
图2 LM1875的BTL接法本设计采用D类音频放大器构成程控交流电源，只需对音频放大器的输入幅度控制就可以得到高纯度正弦交流电压。
奇石乐发动机燃烧分析仪说明书
压阻式压力传感器
压阻原理以1954年首次发现的半导体 效应为基础，即在机械应力作用下， 半导体的阻值会发生变化。与传统的 应变仪测量相比，这一发现开拓了全 新的应用领域。从那时起，其他相近 的技术开始出现，如金属薄膜技术和 陶瓷厚膜技术。
开始： – 奇石乐 – 传感器型号 – 版本 – 传感器版本号 – 传感器序号
初始校准： – 工作温度范围 – 初始校准日期 – 初始校准值
再校准： – 参考温度 – 再校准日期 – 再校准值
结尾： – 注释
传感器
密封
连接电缆
传感器、连接电缆和 TEDS 元件
PiezoSmart®适配器
压阻式低压
压电式缸压
PiezoStar®-10 多年来奇石乐在厂内培养高灵 敏和高温稳定的晶体。
2
目录
从晶体到传感器需要 200 道工序
4
奇石乐压力传感器 - 设计的多样化和创新
6
PiezoSmart® 意味着传感器的自动识别
8
技术先驱 - 引导发动机测试技术发展
压电式缸压
PiezoSmart® 传感器
优点概述
● 电荷和电压放大器参数的自动设 置
● 精确压力指示数据测量简便 ● 简化设置过程缩短试验台的测量
准备时间 ● 通过分析系统数据自动交换，简
化测量分析和记录 ● 传感器自动识别技术极大地提高
多通道校准系统的自动化程度
更多关于升级的信息， 请参考第 18 页
irs2092_chn_webinar
20.4V
COMP
HO
COMP
6.5V
HV LEVEL SHIFT
FLOATING HIGH SIDE
HV LEVEL SHIFT
VS
高速低失真 信号转移
5V REG UV DETECT
VCC
VSS
DEAD TIME
关闭及 循环控制
CSD
20.4V CHARGE / DISCHARGE SD DT
LO
过压保护 (OVP),
• • •
•
欠压保护 (UVP), （高边和低边） 直流输出保护(DCP), 过温保护 (OTP)
PWM 调节: 可外同步自振荡半桥拓朴
12
IRS2092S 立体声功放模板
PWM Gen IRS2092S High-side IRF6645
Low-side
75mm
13
音响专用MOSFET 50 – 500W 系列
技巧提示：
1）根据设计目标，选择合适的元件参数
2）根据原理图选择合适的元件封装和散热方式 3）根据强弱电结构和功能，分区并紧凑布局
4）强干扰源要远离信号部分 5）干扰经向辐射方向与敏感元件正交布置
6）设置屏蔽区域，补偿干扰
20
设计要点
1）分区布局 2）避免出现环路 3）避免PCB线交叉联用 4）抑制高频寄生电感 5）高频退耦元件的布置和连线 6）抑制临近元件及线的耦合 7）利用屏蔽地线抑制泄漏噪音干扰 8）可靠接地
6
IRS2092 框图
FLOATING INPUT
PWM 调制及 VAA “咔哒”噪音抑制
IN-
CLICK NOISE ELLIMINATION 6.5V
IRS2092PBF中文资料
September 2007IRS2092PROTECTED DIGITAL AUDIO AMPLIFIERFeatures•Integrated analog input Class D audio amplifier driver in a small 16 pin package• Floating inputs enable easy half bridgeimplementation• Programmable bidirectional over-currentprotection with self-reset function• Programmable preset deadtime for improvedTHD performances• Start and stop click noise reduction • High noise immunity• ±100 V ratings deliver up to 500 W in outputpower• Operates up to 800 kHz • RoHS compliantTypical Applications• Home theater systems• Mini component stereo systems • Powered speaker systems•General purpose audio power amplifiersProduct SummaryV OFFSET (max)± 100 VIo+ 1.0 AGate driverIo - 1.2 ASelectable Deadtime 25/40/65/105 ns OC protection delay (max) 500 ns DC offset <20 mV PWM frequency ~800 kHz Error amplifier open loop gain >60 dBTHD+N* (1kHz, 50W, 4Ω) 0.01 % Residual Noise*(AES-17 Filter)200 µVrms* measured with recommended circuitPackage OptionsSOIC16N PDIP16IRS2092Table of Contents Page Description 3 Simplified Block Diagram 4 Typical Application Diagram 4 Qualification Information 5 Absolute Maximum Ratings 6 Recommended Operating Conditions 7 Electrical Characteristics 8 Waveform Definitions 10 Functional Block Diagram 11Input/Output Pin Equivalent Circuit Diagram 12Lead Definitions 13Lead Assignments 13 Package Details 14Tape and Reel Details 16Part Marking Information 17 Ordering Information 18IRS2092 DescriptionThe IRS2092 is a high voltage, high performance Class D audio amplifier driver with PWM modulator and protection. In conjunction with two external MOSFET and a few external components, a complete Class D audio amplifier with protection can be realized.International Rectifier’s proprietary noise isolation technology allows high current gate drive stage and high speed low noise error amplifier reside on a single small silicon die.Open elements of PWM modulator section allow flexible PWM topology implementation.IRS2092Simplified Block DiagramTypical Application Diagram1 k Ω4.7 ΩRefer to IRAUDAMP5 reference design for details.IRS2092 Qualification Information†Industrial††(per JEDEC JESD 47E)Qualification Level Comments: This IC has passed JEDEC’s Industrialqualification. IR’s Consumer qualification level is grantedby extension of the higher Industrial level.SOIC16N Moisture Sensitivity LevelDIP16MSL3†††(per IPC/JEDEC J-STD-020C)Machine ModelClass B(per JEDEC standard JESD22-A114D)Human Body ModelClass 2(per EIA/JEDEC standard EIA/JESD22-A115-A)ESDCharged Device ModelClass IV(per JEDEC standard JESD22-C101C)IC Latch-Up Test Class I, Level A (per JESD78A)RoHS Compliant Yes†Qualification standards can be found at International Rectifier’s web site /††Higher qualification ratings may be available should the user have such requirements. Please contact your International Rectifier sales representative for further information.†††Higher MSL ratings may be available for the specific package types listed here. Please contact your International Rectifier sales representative for further information.IRS2092Absolute Maximum RatingsAbsolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. Allvoltage parameters are absolute voltages referenced to COM; all currents are defined positive into any lead.The Thermal Resistance and Power Dissipation ratings are measured under board mounted and still airconditions.Symbol Definition MinMaxUnits V B High side floating supply voltage -0.3 220V S High side floating supply voltage (Note2) V B -20 V B +0.3V HO High side floating output voltage V S -0.3 V B +0.3V CSH CSH pin input voltage V S -0.3 V B +0.3V CC Low side fixed supply voltage (Note2) -0.3 20V LO Low side output voltage -0.3 Vcc+0.3V AA Floating input positive supply voltage (Note2) (See I AAZ) 210V SS Floating input negative supply voltage (Note2)-1(See I SSZ)GND +0.3V GND Floating input supply ground voltageV SS -0.3(See I SSZ)V AA +0.3(See I AAZ)VI IN-Inverting input current (Note1) --- ±3 mAV CSD SD pin input voltage V SS -0.3 V AA +0.3V COMP COMP pin input voltage V SS -0.3 V AA +0.3V DT DT pin input voltage -0.3 V CC +0.3V OCSET OCSET pin input voltage -0.3 V CC+0.3VI AAZ Floating input positive supply zener clamp current (Note2) --- 20I SSZ Floating input negative supply zener clamp current (Note2) --- 20I CCZ Low side supply zener clamp current (Note3) --- 10I BSZ Floating supply zener clamp current (Note3) --- 10I OREF Reference output current --- 5mAdV S/dt Allowable Vs voltage slew rate --- 50 V/ns dV SS/dt Allowable Vss voltage slew rate (Note3) --- 50 V/msSOIC16N --- 1.0 Pd Maximum power dissipation @ T A ≤ +25°CDIP16 --- 1.6WSOIC16N --- 115 Rth JA Thermal resistance, Junction to ambientDIP16 --- 75°C/W T J Junction Temperature --- 150 °C T S Storage Temperature -55 150 °C T L Lead temperature (soldering, 10 seconds) --- 300 °CNote1:IN- contains clamping diode to GND.Note2: V DD – IN+, GND -V SS, V CC-COM and V B-V S contain internal shunt zener diodes. Please note that the voltage ratings of these can be limited by the clamping current.Note3: For the rising and falling edges of step signal of 10 V. V SS=15 V to 200 V.IRS2092Recommended Operating ConditionsFor proper operation, the device should be used within the recommended conditions below. The Vs and COM offset ratingsare tested with supplies biased at V AA-V SS=10 V, V CC=12 V and V B-V S=12 V. All voltage parameters are absolute voltagesreferenced to COM; all currents are defined positive into any lead.UnitsMax.Symbol Definition Min.V B High side floating supply absolute voltage V S +10 V S +18V V S High side floating supply offset voltage (Note 1) 200I AAZ Floating input positive supply zener clamp current 1 11mAI SSZ Floating input negative supply zener clamp current 1 11V SS Floating input supply absolute voltage 0 200V HO High side floating output voltage Vs V BV CC Low side fixed supply voltage 10 18V LO Low side output voltage 0 V CCV V GND GND pin input voltage V SS(Note 3)V AA(Note3)V IN-Inverting input voltage V GND -0.5 V GND +0.5V CSD CSD pin input voltage V SS V AAV COMP COMP pin input voltage V SS V AAC COMP COMP pin phase compensation capacitor to GND 1 - nFV DT DT pin input voltage 0 V CC V0.8mAI OREF Reference output current to COM (Note 2) 0.3V OCSET OCSET pin input voltage 0.5 5V V CSH CSH pin input voltage Vs V BdVss/dt Allowable Vss voltage slew rate upon power-up (Note4) - 50 V/msI PW Input pulse width 10 (Note 5) - nsf SW SwitchingFrequency - 800 kHzTemperature -40 125 °C T A AmbientNote 1:Logic operational for Vs equal to –5 V to +200 V. Logic state held for Vs equal to –5 V to –V BS.Note 2: Nominal voltage for V REF is 5.1 V. I OREF of 0.3 – 0.8 mA dictates total external resistor value on VREF to be 6.3 kΩ to16.7 kΩ.Note 3: GND input voltage is limited by I AAZ and I SSZ.Note 4: V SS ramps up from 0 V to 200 V.Note 5: Output logic status may not respond correctly if input pulse width is smaller than the minimum pulse width.IRS2092Electrical CharacteristicsV CC ,V BS = 12 V, V SS =V S =COM=0 V, V AA =10 V, C L =1 nF and T A =25 °C unless otherwise specified. SymbolDefinition Min Typ Max Units Test ConditionsLow Side SupplyUV CC+ Vcc supply UVLO positive threshold 8.4 8.9 9.4UV CC- Vcc supply UVLO negative threshold 8.2 8.7 9.2UV CCHYS UV CC hysteresis - 0.2 - V I QCC Low side quiescent current - - 3 mA V DT =V CC V CLAMPL Low side zener diode clamp voltage 19.6 20.4 21.6 VI CC =5 mA High Side Floating SupplyUV BS+ High side well UVLO positive threshold 8.0 8.5 9.0UV BS- High side well UVLO negative threshold 7.8 8.3 8.8 UV BSHYS UV BS hysteresis - 0.2 - V I QBS High side quiescent current - - 1 mAI LKH High to Low side leakage current - - 50 µA V B =V S =200 V V CLAMPH High side zener diode clamp voltage 19.6 20.4 21.6 VI BS =5 mAFloating Input SupplyUV AA+ VA+, VA- floating supply UVLO positivethreshold from V SS8.2 8.7 9.2 V SS =0 V, GND pinfloatingUV AA-VA+, VA- floating supply UVLO negative threshold from V SS7.7 8.2 8.7V SS =0 V, GND pinfloatingUV AAHYS UV AA hysteresis - 0.5 -V V SS =0 V, GND pinfloatingI QAA0 Floating Input positive quiescent supply current- 0.5 2V AA =10 V, V SS =0 V,V CSD =VSSI QAA1 Floating Input positive quiescent supply current- 8 11V AA =10 V, V SS =0 V,V CSD =VAAI QAA2 Floating Input positive quiescent supply current- 8 11mA V AA =10 V, V SS =0 V,V CSD =GND I LKM Floating input side to Low side leakage current- - 50 µAV AA =V SS =V GND =100 VV CLAMPM+ V AA floating supply zener diode clamp voltage, positive, with respect to GND 6.0 7.0 8.0I AA =5 mA, I SS =5 mA,V GND =0 V, V CSD =VSSV CLAMPM-V SS floating supply zener diode clamp voltage, negative, with respect to GND -8.0 -7.0 -6.0VI AA =5 mA, I SS =5 mA,V GND =0 V, V CSD =VSS Audio Input (V GND =0, V AA =5V, V SS =-5V)V OS Input offset voltage -15 0 15 mV I BIN Input bias current - - 40 nABWSmall signal bandwidth- 9-MHz C COMP =2 nF, Rf=3.3 k ΩV COMP OTA Output voltage VAA-1 - VSS+1Vg m OTA transconductance - 100 - mS V IN-=10 mVG V OTA gain 60 - - dB V NrmsOTA input noise voltage- 250 - mVrms BW=20 kHz, Resolution BW=22 Hz Fig.5 SR Slew rate - ±5 - V/us C COMP =1 nFCMRR Common-mode rejection ratio - 60 - PSRR Supply voltage rejection ratio-65-dBPWM comparatorVth PWM PWM comparator threshold in COMP - (V AA -V SS )/2 - V f OTACOMP pin star-up local oscillation 0.7 1.0 1.3 MHz V CSD =GNDIRS2092frequencyProtectionV REF Reference output voltage 4.8 5.1 5.4 I OREF =0.5 mAVth OCL Low side OC threshold in Vs 1.1 1.2 1.3OCSET=1.2 V,Fig.6Vth OCH High side OC threshold in V CSH 1.1+ Vs 1.2+ Vs 1.3+ Vs Vs=200 V, Vth1 CSD pin shutdown release threshold 0.62xV DD 0.70xV DD 0.78xV DD Vth2 CSD pin self reset threshold 0.26xV DD 0.30xV DD 0.34xV DD VI CSD+ CSD pin discharge current 70 100 130 V CSD = V SS +5 VI CSD- CSD pin charge current 70 100 130 µAV CSD = V SS +5 V t SD Shutdown propagation delay from V CSD >V SS + Vth OCH to Shutdown- - 250t OCH Propagation delay time from V CSH >Vth OCH to Shutdown- - 500 Fig.3t OCL Propagation delay time from Vs> Vth OCLto Shutdown- - 500 ns Fig.4Gate DriverIo+ Output high short circuit current (Source) - 1.0 - A Vo=0 V, PW<10 µs Io- Output low short circuit current (Sink) - 1.2 - A Vo=12 V, PW<10 µs V OL Low level out put voltageLO – COM, HO - VS- - 0.1V OH High level out put voltageVCC – LO, VB - HO- - 1.4V Io =0 Aton High and low side turn-on propagation delay- 360 -V DT = V CCtoff High and low side turn-off propagation delay- 335 -V DT = V CCtr Turn-on rise time - 20 50 tf Turn-off fall time - 15 35 DT1 Deadtime: LO turn-off to HO turn-on(DT LO-HO ) & HO turn-off to LO turn-on (DT HO-LO )15 25 35V DT >V DT1,DT2 Deadtime: LO turn-off to HO turn-on(DT LO-HO ) & HO turn-off to LO turn-on (DT HO-LO )25 40 55V DT1>V DT > V DT2,DT3 Deadtime: LO turn-off to HO turn-on(DT LO-HO ) & HO turn-off to LO turn-on (DT HO-LO )50 65 85V DT2>V DT > V DT3,DT4 Deadtime: LO turn-off to HO turn-on(DT LO-HO ) & HO turn-off to LO turn-on (DT HO-LO )V DT = V DT485 105 135nsV DT3>V DT > V DT4,V DT1 DT mode select threshold 2 0.51xVcc 0.57xVcc 0.63xVcc V DT2 DT mode select threshold 3 0.32xVcc 0.36xVcc 0.40xVcc V DT3DT mode select threshold 4 0.21xVcc 0.23xVcc 0.25xVcc VIRS2092 Waveform DefinitionsVth1t SD90%CSDHO/LOFigure 1: Switching Time Waveform Definitions Figure 2: CSD to Shutdown Waveform Definitions Vth OCLt OCL90%VSLOVth OCHt OCH90%CSHHOVSFigure 3: V S > Vth OCL to Shutdown Waveform Figure 4: V CSH > Vth OCH to Shutdown WaveformFigure 5: OTA input noise voltage mesurent circuitIRS2092Functional Block Diagram: IRS2092HIGH SIDE CSVBHOVSIN-LOW SIDE CSCSDUV QUV DETECTDEAD TIMEVCCLOCOMVAAGNDCOMPVSS`CSH PROTECTION CONTROLSD VREFUV DETECTUV DETECTCHARGE/DISCHARGEHV LEVEL SHIFTHV LEVEL SHIFTHV LEVEL SHIFTFLOATING INPUTFLOATING HIGH SIDEHV LEVEL SHIFTHV LEVEL SHIFT5V REGOCSET DTDTOTA`VAA+VSS2COMP PWM MODULATORCLICK NOISE ELLIMINATIONIRS2092Input/Output Pin Equivalent Circuit Diagrams: IRS2092ESD DiodeESD DiodeV BHOV SESD DiodeESD DiodeLOCOM200V20 V Clamp20V ClampV CCV CCESD DiodeESD DiodeVAACOMP or CSDVSSESD DiodeESD DiodeV CCDT, VREFor OCSETCOMIRS2092Lead Definitions: IRS2092Pin # Symbol Description1 VAA Floating input positive supply2 GND Floating input supply return3 IN- Analog inverting input4 COMP Phase compensation input, comparator input5 CSD Shutdown timing capacitor6 VSS Floating input negative supply7 VREF 5V reference voltage to program OCSET pin 8 OCSET Low side over current threshold setting 9 DT Deadtime program input 10 COM Low side supply return 11 LO Low side output 12 VCC Low side supply13 VS High side floating supply return 14 HO High side output15 VB High side floating supply16 CSHHigh side over current sensing inputLead AssignmentsVAA GND IN-OCSETCOM COMP CSD LO VCC VREF HO VS VSS 12345678CSH 161514131211109VB IRS2092DTPDIP16 and SOIC16NIRS2092 Package Details: PDIP16IRS2092 Package Details: SOIC16NIRS2092Tape and Reel Details: SOIC16NCARRIER TAPE DIMENSION FOR 16SOICNCode Min Max Min Max A 7.908.100.3110.318B 3.90 4.100.1530.161C 15.7016.300.6180.641D 7.407.600.2910.299E 6.40 6.600.2520.260F 10.2010.400.4020.409G 1.50n/a 0.059n/a H 1.50 1.600.0590.062REEL DIMENSIONS FOR 16SOICNCode Min Max Min Max A 329.60330.2512.97613.001B 20.9521.450.8240.844C 12.8013.200.5030.519D 1.95 2.450.7670.096E 98.00102.00 3.858 4.015F n/a 22.40n/a 0.881G 18.5021.100.7280.830H 16.4018.400.6450.724Metric ImperialMetric ImperialEFA CDGA BHNOTE : CONTROLLINGDIMENSION IN MMAHFEGDBCIRS2092 Part Marking InformationIRS2092Ordering InformationStandard PackBase Part NumberPackage TypeForm QuantityComplete Part NumberPDIP16 Tube/Bulk 25IRS2092PBF Tube/Bulk 45 IRS2092SPBF IRS2092SOIC16NTape and Reel2500IRS2092STRPBFThe information provided in this document is believed to be accurate and reliable. However, International Rectifier assumes no responsibility for the consequences of the use of this information. International Rectifier assumes no responsibility for any infringement of patents or of other rights of third parties which may result from the use of this information. No license is granted by implication or otherwise under any patent or patent rights of International Rectifier. The specifications mentioned in this document are subject to change without notice. This documentsupersedes and replaces all information previously supplied.For technical support, please contact IR’s Technical Assistance Center/technical-info/WORLD HEADQUARTERS:233 Kansas St., El Segundo, California 90245Tel: (310) 252-7105。
国际极电-电源管理选择指南说明书
MVol ReguCONTAmplifierSCIFuel Pressure Current Sensing, Rotor Position, Angle SensingSmartRectifier™IR1166/67: Simple, High Efficiency Sync RecFor de signe rs of high powe r flyback and re sonant half-bridge conve rte rs for laptops, mini-PCs, LCD and PDP TVs and games, the SmartRectifier™ offers a simple, high efficien-cy solution for se condary synchronous re ctification (SR) in all ope rational mode s and application conditions.IR1166/67 can be used with IR’s HEXFET®PowerNo manual assemblyThe µPFC TM Family of Controller ICs Alters Traditional Thinking About PFC SolutionsThe IR1150 uses a new, patented "One-Cycle Control (OCC), integrator with reset" tech-nique to deliver the high performance of Continuous Conduction Mode (CCM) PFC with the simplicity and low component count of Discontinuous Current Mode (DCM).OCC doe s not have the traditional analog multiplie r, AC line se nsing or fixe d oscillator ramp. In OCC the output of the error amplifier is integrated over each clock cycle to gen-erate a variable-slope ramp. This variable ramp is compared with the error voltage and subtracted from the current sense signal to generate the PWM gate drive.The IRS2092 is an inte grate d drive r IC fe aturing prote cte d PWM switching for me diumpower, high performance Class D audio amplifiers up to 500W in home theatre, home stereo,active speaker, musical instrument, and professional audio applications.Based upon a half bridge topology, the new audio driver IC integrates four essential func-tions for Class D design implementation including error amplifier, PWM comparator, gatedriver, and robust protection circuitry. As a result, this compact 16-pin IC offers high noiseimmunity, reduced start and stop click noise, and design scalability, while greatly reducingsome of the most complicated and costly design tasks such as overload protection. Motion Control Current Sensing ICsThe IR217x/IR227x is a family of monolithic current sensing ICs designed for motor drive applications. The ICs sense the motor phase current through an external shunt resistor, convert the current information from an analog to a digital signal, and transfer the signalHigh Voltage Gate Driver ICs (HVICs)International Rectifier's MOSFET and IGBT gate driver ICs are the simplest, smallest andlowest cost solution to drive MOSFETs or IGBTs up to 1200V in applications up to 12kW,and can save over 30% in part count in a 50% smaller PCB area compared to a discreteopto-couple r or transforme r-base d solution. With the addition of fe w e xte rnal compo-ne nts, IR gate drive r ICs provide full drive r capability with e xtre me ly fast switching HVICIR Gate Driver ICs Simplify Design (continued)These ICs simplify circuit designs by integrating extensive functionality. They use a low cost bootstrap supply, while opto-couple r-base d circuits typically re quire an auxiliary powe supply. IR Gate Driver ICs offer optional single input or dual input programmable deadtime control for low-side and high-side drivers as well as for 3-phase drivers to provide design flexibility and minimize cross-conduction.HVICs with advanced over-current detection and protection circuitryMulti-chip modules, like the iPOWIR™ intelligent scalable building blocks integrate critical power, drive and control silicon, simplify de sign while raising the e fficie ncy and curre nt density of on-board power converters for the latest generation of low-voltage processors in single- and multiphase topologies. IR's expertise in device matching and "short trace" lay-out deliver this optimized solution that combines multiple power semiconductors, ICs, and passive components into a single package. The iPOWIR MCMs require less developmentThe iP200x series family is a functional “building block” for multiphase buck converters which are use d to powe r GHz class CPUs in high-e nd computing and commun-ications syste ms. Base d on Inte rnational Re ctifie r’s iPOWIR™te chnology, the iP200x integrates the power semiconductors, a driver IC and layout-critical passives required for each phase of a multiphase synchronous buck converter into a single package. These products are offered in either ball grid array (BGA) or land grid array (LGA).LED Lighting Solution 3HB-LEDs fe ature huge longe vity, low mainte nance re quire me nt, small size, de sign flexibility, de corative e ffe ct capability, safe low DC voltage ope ration, e xce lle nt cold we athe r pe rformance, lack of me rcury, supe rior color gamut and brightne ss are making LEDs extremely popular. IR offers dedicated control ICs which can use at best all the LEDs features either in a DC-DC environment or directly off-line. Furthermore IR ICs offers a high degree of integration, minimizing the design time needed and increas-Features at a GlanceIR2161 Halogen •Intelligent Half Bridge DriverHID Lighting Solutions Thanks to key advantages over other light sources (high lumen output, long life, color ren-dering and “point of light”), HID lamps are gaining in popularity in the industrial world. From few tens of watts for shop lights, to several hundreds of watts for street lighting, IR ICs offer a high degree of integration, minimizing the design time needed and increasing ballast reli-ability. The traditional industrial topology includes a PFC front-end, a buck converter to reg-ulate the current, and a full-bridge switching a 50% inverting the polarity.ICICICEMI FilterEMI FilterRectifierHalf-BridgeOutput Stage RectifierHalf-BridgePFCLineLine LIGHTING Halogen Ballast ConfigurationLIGHTING Linear Fluorescent Ballast ConfigurationExponential growth in the requirements for higher current at lower operating voltages has created a rough road for designers of DC-DC power management systems. International Rectifier has focused the power semiconductor industry's largest R&D effort to implement a roadmap for high performance and cost-effective DC-DC power management. IR's exten-sive discrete and IC portfolio makes IR the only power semiconductor company with a prod-The Scalable, Flexible Multiphase ArchitectureThe XPhase chip set consists of the control IC, containing all the one-per-converter circuit-ry, and a scalable array of phase converters, each using a single phase IC with all the one-per-phase circuitry.ApplicationsReal-time Power Monitoring ICThe IR3721 output power monitor IC for low-voltage DC-V IN DC converters used in notebook, desktop computers, ande ne rgy-e fficie nt se rve r applications, utilize s IR’s pate nt-pe nding True Powe r™ te chnology to accurate ly capture highly dynamic power information with 2.5 percent accu-racy at 65°C.Buck versus two top monolithic, lateral FETsSave Energy; Simplify Embedded Power Designs; Shrink Silicon Footprint by 70%The innovative SupIRBuck family of point-of-load (POL) voltage regulators integrates IR’shigh performance synchronous buck control ICs and benchmark HEXFET® trench technol-ogy MOSFETs in a compact 5mm by 6mm Power QFN package, shrinking the silicon footprintby 70 percent compared to discrete solutions, and offering up to ten percent higher full-loadefficiency than competing monolithic ICs.All WARP2 IGBTs are offered with co-pack HEXFRED diodes, which offer excellent reverse recovery characteristics, much better than the integral diodes in a Power MOSFET.The improvement in switching performance, combined with the positive thermal coefficientThe IPMs are an addition to the iMOTION™ family of integrated design platforms from IR. Together with a few external components and our digital controllers, they form a complete motor drive system, greatly accelerating the design path compared to a multi-discrete solu-r-curre nt prote ction, along with short-circuit rate d IGBTs, an integrated under-voltage lockout function, and built-in temperature monitor pro-Ultra-Low R DS(on)Self-Protected Intelligent Power SwitchesIntelligent Power Switches (IPS) from International Rectifier integrate a low R DS(on) output HEXFET®power MOSFET into a single package with protection and control circuits, makingInternational Rectifier Microelectronic RelaysInternational Rectifier microelectronic relays consist of HEXFET® power MOSFET and IGBT output photovoltaic relays, as well as a line of photovoltaic isolators. The operating param-eters of photovoltaic relays are ideal for switching low-level signal loads in instrumentation and data acquisition to medium power loads in industrial controls and process automation,Inte rnational Re ctifie r automotive Tre nch HEXFET®Powe r MOSFETs fe atureimproved efficiency, switching performance and ruggedness compared to competi-tive Trench technology. IR Trench process has been uniquely optimized to extend thebenefits of Trench technology to the harsh automotive environment without sacrific-ing the avalanche rugge dne ss that automotive syste m de signe rs have come toexpect from IR’s planar MOSFETs.TrenchThe International Rectifier DirectFET power packageThe Inte rnational Re ctifie r Dire ctFET powe r package is a bre akthrough surface-mount power MOSFET packaging technology designed for efficient topside cooling in a SO-8 foot-print. In combination with improved bottom-side cooling, the new package can be cooled on both sides to cut part count by up to 60%, and board space by as much as 50% comparedfrom electrical and thermal point of view features. The Discovery Center is organized in the following sections:•DirectFET MOSFET Overview features a complete and deep description of the。
红外传感器PIS-209S使用说明
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总公司: 香港九龍旺角塘尾道 54-58 號永利工業大廈 1405 室 TEL:(852) 23982562 FAX: (852) 23981536 E-mail: cwau5865@ 深圳廠址: 深圳市福田區八卦四路中櫥六號樓 421 室 郵編:529018 TEL: 0755-25875075 82408374 FAX: 0755-25875075 E-mail:lujiafu@ 展销部:深圳市福田區中航路都會 100 一樓 1A026 TEL: 0755-83014608
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总公司: 香港九龍旺角塘尾道 54-58 號永利工業大廈 1405 室 TEL:(852) 23982562 FAX: (852) 23981536 E-mail: cwau5865@ 深圳廠址: 深圳市福田區八卦四路中櫥六號樓 421 室 郵編:529018 TEL: 0755-25875075 82408374 FAX: 0755-25875075 E-mail:lujiafu@ 展销部:深圳市福田區中航路都會 100 一樓 1A026 TEL: 0755-83014608
PIS-209S 紅外探測器使用說明書
总公司: 香港九龍旺角塘尾道 54-58 號永利工業大廈 1405 室 TEL:(852) 23982562 FAX: (852) 23981536 E-mail: cwau5865@ 深圳廠址: 深圳市福田區八卦四路中櫥六號樓 421 室 郵編:529018 TEL: 0755-25875075 82408374 FAX: 0755-25875075 E-mail:lujiafu@ 展销部:深圳市福田區中航路都會 100 一樓 1A026 TEL: 0755-83014608
IRS20955PBF资料
Product Summary
VOFFSET (max) Gate driver Selectable deadtime Propagation delay OC protection delay Shutdown propagation delay Io+ Io± 100 V 1.0 A 1.2 A 15 ns, 25 ns, 35 ns, 45ns 90 ns 500 ns (max) 250 ns (max)
Symbol
VB VS VHO VCSH VCC VLO VDD VSS VIN VCSD VDT VOCSET VREF IDDZ ICCZ IBSZ IOREF d VS /dt d VSS /dt d VSS /dt PD Rth,JA TJ TS TL
Definition
High-side floating supply voltage High-side floating supply voltage (Note1) High-side floating output voltage CSH pin input voltage Low-side fixed supply voltage (Note1) Low-side output voltage Floating input supply voltage Floating input supply voltage (Note1) PWM input voltage CSD pin input voltage DT pin input voltage OCSET pin input voltage VREF pin voltage Floating input supply Zener clamp current (Note1) Low side supply Zener clamp current (Note1) Floating supply Zener clamp current (Note1) Reference output current Allowable VS voltage slew rate Allowable VSS voltage slew rate (Note2) Allowable VSS voltage slew rate upon power-up (Note3) Maximum power dissipation Thermal resistance, junction to ambient Junction temperature Storage temperature Lead temperature (soldering, 10 seconds)
IR IRS2092 1700W单路D类音频功率放大方案(完整资料).doc
【最新整理，下载后即可编辑】IR IRS2092 1700W单路D类音频功率放大方案2012-10-30 22:37:47| 分类：默认分类|字号订阅IR公司的IRS2092是集成了PWM调制器和保护的高压高性能D类音频放大器，工作频率高达800kHz，±100 V额定电压是可提供500W输出功率，主要用在家庭影院，密你立体声系统，通用音频放大器等。
本文介绍IRS2092主要特性，方框图，典型连接图，典型应用电路图以及1700W单路D类音频功率放大器框图，主要特性，电路图和材料清单。
The IRS2092 is a high voltage, high performance Class D audio amplifier driver with PWM modulator and protection.In conjunction with two external MOSFET and a few external components, a complete Class D audio amplifier with protection can be realized.International Rectifier’s proprietary noise isolation technology allows high current gate drive stage and high speed low noise error amplifier reside on a single small silicon die.Open elements of PWM modulator section allow flexible PWM topology implementation.IRS2092主要特性：? Integrated analog input Class D audio amplifier driver in a small 16 pin package? Floating inputs enable easy half bridge implementation? Programmable bidirectional over-current protection with self-resetfunction? Programmable preset deadtime for improved THD performances ? Start and stop click noise reduction? High noise immunity? ±100 V ratings deliver up to 500 W in output power? Operates up to 800 kHz? RoHS compliantIRS2092典型应用：? Home theater systems? Mini component stereo systems? Powered speaker systems? General purpose audio power amplifiers图1。
IRS2092S使用注意问题_CIASS D IRAUDAMP7S_
IRS2092S使用注意问题(CIASS D IRAUDAMP7S)IRS2092是集成式音频驱动器IC的芯片组，具有保护式脉宽调制(PWM)开关和IR完整的数字音频MOSFET 等特性。
该芯片组主要针对从50W至 500W的中功率、高性能D类音频放大器应用，例如家庭影院、家庭立体声音响、有源扬声器、乐器和专业音频应用等。
1）对于过流保护设置值问题：电流保护阀值选取:流过FET 的电流包括音频输出和LPF 滤波网络电流，所以；实际要求设置值要高于音频电流峰值。
我比较喜欢这样选取：功放饱和输出时的最大输出电流X1.5；2）RDSON选取：可以根据实际最高工作温度选取，通常可以取85C 时的RDSON 值；3）有了电流和RDSON，就可以选IC 的保护值了。
这里需要注意的是大电流下的FET 开关波型应该是很干净的方波，如果有毛刺的话，可以适当增加栅电阻和优化退耦结构。
对于直流输出问题：可能重载时；电源电压跌落，但；由于变压器或负载正负不对称，正负电源电压跌落不一致，致使功放某一半波提前饱和输出了。
出现这问题时；通常不是功放问题，你可以略微提高电源电压增加水塘电容试试。
2）一般理想的工程条件下，半桥工作的实际死区时间越短越好，最小可以设置到10 纳秒3）IRS2092S 做全频功放时应注意的问题，最好能选择线性度比较好的元件，调制频率选择在300~400KHz，适当匹配LC 滤波器的L/C 的值，可以比较要的解决问题。
推荐L 选取18~22μH。
如果要进一步改善平坦度，L 可以取到10μH，同时；调制频率提高到400KHz 左右。
4）PWM 调制及咔哒声抑制问题：电路的过度过程不匹配，前级电源电压降落引起的电压飘逸被后级放大造成的。
调整一下时续可以解决问题。
另：IRS2092/S 已经在IC 内加入开关机消“咔哒”功能。
一般无需外加电路。
Edited by Foxit ReaderCopyright(C) by Foxit Software Company,2005-2008 For Evaluation Only.题，很多理论已经超出了传统AB 类放大器的知识范畴。
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IR IRS2092 D类240瓦放大器方案关键词：消费类电子，音频放大器，D类放大器，MOSFET，摘要：IR 公司的IRAUDAMP5 D类240瓦音频3率放大器方案采用IRS2092S D 类音频控制器和栅极驱动器和IRF6645 DirectFET MOSFET。
參考设计在1/8连续额定功率时不需要散热器，两路设计对于输出功率和路数可配置，广泛应用在AV接收器，家庭影院系统，大功率杨声器，低音喇叭，乐器放大器以及汽车电子放大器。
本文介绍了IRS2092S 和IRAUDAMP5參考设计的主要性能，方框图以及參考设计的多种应用电路。
IR 公司的IRAUDAMP5 D类240瓦音频3率放大器方案采用IRS2092S D 类音频控制器和栅极驱动器和IRF6645 DirectFET MOSFET。
參考设计在1/8连续额定功率时不需要散热器，两路设计对于输出功率和路数可配置，广泛应用在AV接收器，家庭影院系统，大功率杨声器，低音喇叭，乐器放大器以及汽车电子放大器。
本文介绍了IRS2092S和IRAUDAMP5參考设计的主要性能，方框图以及參考设计的多种应用电路。
IRS2092 PROTECTED DIGITAL AUDIO AMPLIFIER主要特性：• Integrated analog input Class D audio amplifier driver in a small 16 pin package• Floating inputs enable easy half bridge implementation• Programmable bidirectional over-current protection with self-reset function• Programmable preset deadtime for improved THD performances• Start and stop click noise reduction• High noise immunity• ±100 V ratings deliver up to 500 W in output power• Operates up to 800 kHz• RoHS compliant典型应用：• Home theater systems• Mini component stereo systems• Powered speaker systems• General purpose audio power amplifiers图1. IRS2092方框图图2.IRS2092典型应用电路图IRAUDAMP5120W x 2 Channel Class D Audio Power Amplifier Using the IRS2092S and IRF6645图3. IRAUDAMP5參考设计外形图（两路120W半桥D类音频放大器）Two-channel 120 W Half-bridge Class-D Audio Power AmplifierThe IRAUDAMP5 reference design is a two-channel, 120W half-bridge Class D audio power amplifier. This reference design demonstrates how to use the IRS2092S Class D audio controller and gate driver IC, implement protection circuits, and design an optimum PCB layout using the IRF6645 DirectFET MOSFETs. The resulting design requires no heatsink for normal operation (one-eighth of continuous rated power). The reference design provides all the required housekeeping power supplies for ease of use. The two-channel design is scalable for power and the number of channels.应用：AV receiversHome theater systemsMini component stereosPowered speakersSub-woofersMusical Instrument amplifiersAutomotive after market amplifiers主要特性：Output Power: 120W x 2 channels,Total Harmonic Distortion (THD+N) = 1%, 1 kHzResidual Noise: 170μV, IHF-A weighted, AES-17 filterDistortion: 0.005% THD+N @ 60W, 4ΩEfficiency: 96% @ 120W, 4Ω, single-channel driven, Class D stageMultiple Protection Features: Over-current protection (OCP), high side and low sideOver-voltage protection (OVP),Under-voltage protection (UVP), high side and low sideDC-protection (DCP),Over-temperature protection (OTP)PWM Modulator: Self-oscillating half-bridge topology with optional clock synchronization主要指标：General Test Conditions (unless otherwise noted) Notes / ConditionsSupply Voltage ±35VLoad Impedance 8-4ΩSelf-Oscillating Frequency 400kHz No input signal, AdjustableGain Setting 26dB 1Vrms input yields rated power Electrical Data Typical Notes / ConditionsIR Devices Used IRS2092S Audio Controller and Gate-Driver,IRF6645 DirectFET MOSFETsModulator Self-oscillating, second order sigma-deltamodulation, analog inputPower Supply Range ± 25V to ±35V Bipolar power supplyOutput Power CH1-2: (1%THD+N)120W 1kHzOutput Power CH1-2: (10%THD+N)170W 1kHzRated Load Impedance 8-4ΩResistive loadStandby Supply Current ±100mA No input signalTotal Idle PowerConsumption7W No input signalChannel Efficiency 96% Single-channel driven,120W, Class D stage .Audio Performance *BeforeDemodulator Class DOutputNotes /ConditionsTHD+N, 1W THD+N, 10W THD+N, 60W THD+N, 100W 0.009%0.003%0.003%0.008%0.01%0.004%0.005%0.010%1kHz, Single-channel drivenDynamic Range 101dB 101dB A-weighted,AES-17 filter,Single-channeloperationResidual Noise, 22Hz - 20kHzAES17 170μV 170μV Self-oscillating –400kHzDamping Factor 2000 170 1kHz, relative to4Ω loadChannel Separation 95dB85dB75dB 90dB80dB65dB100Hz1kHz10kHzFrequency Response : 20Hz-20kHz:20H N/A ±1dB±3dB1W, 4Ω - 8ΩLoadz-35kHzThermal Performance Typical Notes / Conditions Idling T C =30°CT PCB=37°CNo signal input, T A=25°C2ch x 15W (1/8 rated power) T C =54°CT PCB=67°CContinuous, T A=25°C2ch x 120W (Rated power) T C =80°CT PCB=106°C At OTP shutdown @ 150 sec, T A=25°CPhysical SpecificationsDimensions 5.8”(L) x 5.2”(W)图4. IRAUDAMP5 D类放大器简化方框图The IRAUDAMP5 uses the IRS2092S, a high-voltage (up to 200V), high-speed power MOSFET PWM generator and gate driver with internal dead-time and protection functions specifically designed for Class D audio amplifier applications. These functions include OCP and UVP. Bi-directional current protection for both the high-side and low-side MOSFETs are internal to the IRS2092S, and the trip levels for both MOSFETs can be set independently. In this design, the dead time can be selected for optimized performance by minimizing dead time while preventing shoot-through. As a result, there is no gate-timing adjustment on the board. Selectable dead time through the DT pin voltage is an easy and reliable function which requires only two external resistors 。