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Avago ACPL-P343 (W343) IGBT柵極驅(qū)動方案

發(fā)布時間:2011-5-25 13:23    發(fā)布者:Liming
關(guān)鍵詞: ACPL-P343 , Avago , IGBT
Avago公司的ACPL-P343 (W343)是4A輸出的 IGBT柵極驅(qū)動光耦合器,集成了一個AlGaAs LED, VCC工作電壓15V-30V,工作溫度-40℃ 到105℃,輸出電壓軌到軌,CMR大于35 kV/us,符合安全標準UL Recognized 3750/5000 VRMS for 1 min., CSA和IEC/EN/DIN EN 60747-5-2 VIORM = 891/1140 Vpeak.主要用在IGBT/MOSFET柵極驅(qū)動,AC和無刷DC馬達驅(qū)動,再生能源逆變器,工業(yè)逆變器和開關(guān)電源.本文介紹了ACPL-P343/W343主要特性, 功能方框圖,兩種推薦的應(yīng)用電路以及ACPL-P34X/W34X評估板主要特性,電路圖PCB元件布局圖.

ACPL-P343 and ACPL-W343: 4.0 Amp Output Current IGBT Gate Drive Optocoupler with Rail-to-Rail Output Voltage in Stretched SO6

The ACPL-P343/W343 contains an AlGaAs LED, which is optically coupled to an integrated circuit with a power output stage. This optocoupler is ideally suited for driving power IGBTs and MOSFETs used in motor control inverter applications. The high operating voltage range of the output stage provides the drive voltages required by gate controlled devices. The voltage and high peak output current supplied by this optocoupler make it ideally suited for direct driving IGBT with ratings up to 1200 V / 200 A. For IGBTs with higher ratings, this optocoupler can be used to drive a discrete power stage which drives the IGBT gate.

The ACPL-P343 and ACPL-W343 have the highest insulation voltage of VIORM = 891 Vpeak and VIORM = 1140 Vpeak respectively in the IEC/EN/DIN EN 60747-5-2.

ACPL-P343/W343主要特性:

4.0 A maximum peak output current

3.0 A minimum peak output current

Rail-to-rail output voltage

200 ns maximum propagation delay

100 ns maximum propagation delay difference

LED current input with hysteresis

35 kV/us minimum Common Mode Rejection (CMR) at VCM = 1500 V

ICC = 3.0 mA maximum supply current

Under Voltage Lock-Out protection (UVLO) with hysteresis

Wide operating VCC Range: 15 to 30 V

Industrial temperature range: -40℃ to 105℃

Safety Approval Pending

– UL Recognized 3750/5000 VRMS for 1 min.

– CSA

– IEC/EN/DIN EN 60747-5-2 VIORM = 891/1140 Vpeak

ACPL-P343/W343應(yīng)用:

IGBT/MOSFET gate drive

AC and Brushless DC motor drives

Renewable energy inverters

Industrial inverters

Switching power supplies

圖1.ACPL-P343/W343功能方框圖

圖2.ACPL-P343/W343推薦的應(yīng)用電路圖(1)

Recommended application circuit with split resistors LED drive

圖3.ACPL-P343/W343推薦的高CMR驅(qū)動電路圖

ACPL-P34X/W34X評估板

The ACPL-P34X/W34X evaluation board allows a powerinverter designer to easily test the drive, rail-to-rail and speed capability of the ACPL-P343/W343 gate drive optocoupler.

The evaluation board includes two separate gate drive channels (one optocoupler per channel) making it a half-bridge topology for driving directly the gates of high-side and low-side IGBTs of a power inverter (such as single-phase motor inverter or one phase of a 3-phase motor inverter). This evaluation board can also support ACPL-P341/W341 and ACPL-P340/W340.

ACPL-P34X/W34X評估板主要特性:

Half-Bridge topology

Footprints for bootstrap power supply confi guration

Works for IGBT TO-220 / TO-247 type

Able to evaluate the 4 A drive, rail-to-rail and speed performance

Footprints for PCB mounting terminal blocks for wire connections to motor

Split resistors network to achieve high CMR response

Example of good bypass capacitors layout

Supports ACPL-P341/W341 and ACPL-P340/W340

ACPL-P34X/W34X評估板應(yīng)用:

Isolated IGBT/MOSFET Gate Drive

AC and Brushless DC Motor Drives

Industrial Inverters

Renewable Energy Inverters

Uninterruptible Power Supplies (UPS)

圖4.ACPL-P34X/W34X評估板電路圖(頂層)

圖5.ACPL-P34X/W34X評估板電路圖(低層)

圖6.ACPL-P34X/W34X評估板PCB元件布局圖

詳情請見:
http://www.avagotech.com/docs/AV02-2928EN

http://www.avagotech.com/docs/AV02-2927EN
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