Si8751AB-AS中文资料Automotive Isolated FET Drivers​​数据手册Skyworks规格书

描述 Description

Si8751AB-AS automotive FET drivers offer a simple way to replace solid-state relays (SSRs) or electromechanical relays (EMRs). Combining a robust CMOS isolation technology with a FET driver, the devices form a complete, isolated switch. Versatile inputs provide digital CMOS pin control (Si8751) or diode emulation (Si8752) to best suit the application, plus flexible outputs to support driving AC or DC load configurations. A floating secondary side DC voltage source is unnecessary as the self-contained product generates its own gate drive output voltage, reducing cost, size, and complexity. Si8751AB-AS devices eliminate the need for bulky mechanical relays which can be difficult to assemble onto PCBs and add switching noise to the system. Input side voltages are flexible from 2.25 V to 5.5 V supporting seamless connection to low-power controllers. The Si8751AB-AS is fully automotive qualified and its 2.5 kVrms isolation rating forms the basis for full certification to UL, CSA, VDE, and CQC.

特性 Features

·数字 CMOS 或二极管仿真控制输入
·开启时间 <100 µs 的 10.3 V 栅极驱动输出
·内部产生的次级侧电源
·米勒钳位电容支持以减少电感颤动
·直流或交流负载开关支持

简介

Si8751AB-AS属于隔离器的隔离器-栅极驱动器。由制造生产的Si8751AB-AS隔离器 - 栅极驱动器隔离器栅极驱动器是电源信号与外部 MOSFET 或桥接架构电路之间的接口。技术类型分为容性耦合、磁耦合和光耦合，提供 1、2 或 4 通道。电压隔离范围为 1000Vrms 至 7500Vrms，传播延迟范围为 30ns 至 5ms。