Si8751AB-IS数据手册隔离器的隔离器-栅极驱动器规格书PDF

描述 Description

Si8751AB-IS drivers offer a simple way for customers to replace solid-state relays (SSRs) or electromechanical relays (EMRs), combining robust CMOS isolation technology with a FET driver to 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-IS devices eliminate the need for bulky mechanical relays which can be difficult to assemble onto PCBs and add switching noise to the system. Si8751AB-IS drivers support full industrial and automotive temperature ranges with increased stability and longer life-time. Input side voltages are flexible from 2.25 V to 5.5 V supporting seamless connection to low-power controllers. Si8751AB-IS devices provide a clamping device to prevent unintended turn on of the external FET when a high dV/dt is present on the FET’s drain, 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-IS属于隔离器的隔离器-栅极驱动器。由制造生产的Si8751AB-IS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。