Avago ACPL-M71T 高速低功耗光学隔离方案

Avago公司的 ACPL-M71T和 ACPL-M72T是高速低功耗符合AEC-Q100 Grade 1资质的数字光学隔离器,工作温度从–40℃ 到125℃.ACPL-M71T采用高速LED, 最大延迟(IF =10 mA)35ns,ACPL-M72T采用低电流LED,4 mA LED驱动电流.主要应用在汽车CANBus通信接口,IGBT和功率MOSFET绝缘高速栅极驱动器,MCU接口,ADC和DAC数字绝缘.本文介绍ACPL-M71T和 ACPL-M72T主要特性, 功能方框图, ACPL-M71T高速模式和CMH,CML测试电路图,以及ACPL- M72T低功耗模式开关, 高CMR,CMH测试电路图, ACPL- M71T高速应用电路图与ACPL- M72T低功耗应用电路图.

High Speed/Low Power R2CouplerTM Digital Optocouplers with AEC-Q100 Grade 1 Qualification The Avago ACPL-M71T and ACPL-M72T are high temperature, digital CMOS optocouplers in SOIC-5 packages. Suitable for hybrid and electric vehicle applications,the optocouplers use the latest CMOS IC technology to achieve outstanding performance and very low power consumption. All devices are AEC-Q100 compliant and operate over the –40℃ to 125℃ temperature range.

The ACPL-M71T uses a high speed LED, and the ACPL-M72T uses a low current LED for lower power dissipation. The high speed ACPL-M71T featuring a 35 ns maximum propagation delay (IF =10 mA). The ACPL-M72T optocoupler features very low power. With a low 4 mA LED drive current, ACPL-M72L typical propagation delay is 60 ns.
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