Avago公司的ACPL-38JT是汽車IGBT用柵極驅動光耦器,輸出電流2.5A,集成了去飽和(VCE)檢測和故障狀態(tài)反饋,滿足汽車電子AEC-Q100 Grade 1標準要求,可驅動IC = 150 A,VCE = 1200 V的IGBT,最大開關速度500ns,IGBT”軟關斷”,5 –30工作電壓,工作溫度-40℃ 到+125℃,主要用于絕緣IGBT/MOSFET逆變器柵極驅動,汽車用DC/DC轉換器,AC和無刷DC馬達驅動以及UPS.本文介紹了ACPL-38JT主要特性,功能方框圖,馬達控制系統(tǒng)應用方框圖以及推薦的應用電路圖.
ACPL-38JT:Automotive Gate Drive Optocoupler with R2Coupler™ Isolation, 2.5 Amp Output Current, Integrated Desaturation (VCE) Detection and Fault Status Feedback Avago’s automotive 2.5 Amp Gate Drive Optocoupler with Integrated Desaturation (VCE) Detection and Fault Status Feedback makes automotive IGBT VCE fault protection compact, affordable, and easy-to-implement while satisfying automotive AEC-Q100 Grade 1 semiconductor requirement.
Avago R2Coupler isolation products provide the reinforced insulation and reliability needed for critical in automotive and high temperature industrial applications
ACPL-38JT主要特性:
2.5 A maximum peak output current
Drive IGBTs up to IC = 150 A, VCE = 1200 V
Optically isolated, FAULT status feedback
SO-16 package
CMOS/TTL compatible
500 ns max. switching speeds
“Soft” IGBT turn-off
Integrated fail-safe IGBT protection
– Desat (VCE) detection
– Under Voltage Lock-Out protection (UVLO) with hysteresis
User configurable: inverting, noninverting, auto-reset, auto-shutdown
Wide operating VCC range: 15 to 30 Volts
-40℃ to +125℃ operating temperature range
15 kV/us min. Common Mode Rejection (CMR) at VCM =1500 V
Qualified to AEC-Q100 Grade 1 Test Guidelines
Regulatory approvals (Pending):
– UL1577, CSA
– IEC/EN/DIN EN 60747-5-2
ACPL-38JT應用:
Automotive Isolated IGBT/MOSFET Inverter gate drive
Automotive DC-DC Converter
AC and brushless dc motor drives
Industrial inverters for power supplies and motor controls
Un-interruptible Power Supplies
圖1.ACPL-38JT功能方框圖
圖2.馬達控制系統(tǒng)應用方框圖
圖3.同相抗飽和保護柵極驅動電路圖
圖4.ACPL-38JT推薦的應用電路圖
詳情請見:
http://www.avagotech.com/docs/AV02-2546EN
