DESCRIPTION

Control circuit for power MOS bridge driver in auto motive applications with ISO 9141bus interface.

FEATURES

■ OPERATING SUPPLY VOLTAGE 8V TO 20V, OVERVOLTAGE MAX. 40V

■ OPERATING SUPPLY VOLTAGE 6V WITH IMPLEMENTED STEPUP CONVERTER

■ QUIESCENT CURRENT IN STANDBY MODE LESS THAN 50µA

■ ISO 9141 COMPATIBLE INTERFACE

■ CHARGE PUMP FOR DRIVING A POWER MOS AS REVERSE BATTERY PROTECTION

■ PWM OPERATION FREQUENCY UP TO 30KHZ

■ PROGRAMMABLE CROSS CONDUCTION PROTECTION TIME

■ OVERVOLTAGE, UNDERVOLTAGE, SHORT CIRCUIT AND THERMAL PROTECTION

■ REAL TIME DIAGNOSTIC

L9903属于集成电路（IC） > 电机驱动器，控制器。意法半导体（ST）集团制造生产的L9903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。