A3942中文资料Automotive Low-Side FET Pre-Driver数据手册Allegro规格书

描述 Description

The A3942 is a highly-integrated gate driver IC that can drive up to four N-Channel MOSFETs in a high-side configuration. The device is designed to withstand the harsh environmental conditions and high reliability standards of automotive applications.
Serial Peripheral Interface (SPI) compatibility makes the device simply integrated into existing applications. The MOSFETs in such applications are typically used to drive gasoline or diesel engine management actuators, transmission actuators, body control actuators and other general-purpose automotive or industrial loads. In particular, the A3942 is suited for driving glow plugs, valves, solenoids, and other inductive loads in engine management and transmission systems.

特性 Features

•Drives four N-channel high-side MOSFETS
•Charge pump for 100% duty cycle operation
•Serial and discrete inputs
•SPI port for control and fault diagnostics
•4.5 to 60 V input voltage range
•Sleep function for minimum power drain
•Thin profile 38-lead TSSOP with internally fused leads for enhanced thermal dissipation
•Lead (Pb) free
•Device protection features:
•Short-to-ground detection (latched)
•Short-to-battery protection (latched)
•Open load detection (latched)
•VDD undervoltage lockout
•VCP undervoltage lockout
•Thermal monitor

简介

A3942属于集成电路（IC）的电机驱动器控制器。由制造生产的A3942电机驱动器，控制器产品属于电机驱动器和控制器电源管理集成电路 (PMIC) 系列，可用于控制或操作从某电源施加到电机或相关机电执行器的电源。所实现的具体功能和特性集根据预期负载和预期应用的特性有很大差异，范围从用于有刷电机的简单开环速度控制到基于步进电机的高级闭环运动控制。