L9912L数据手册ST中文资料规格书

描述 Description

The L9912L is a controlled multifunctional alternator regulator intended to be used for commercial and agricultural vehicles. It supports 12 V System. The control can be achieved through different communication protocol: LIN, RCV, PCM, C_term, BSS. It is a System-In-Package solution with smart power alternator regulator IC and 8-bit microcontroller (non-monolithic approach). It includes the control section, fault diagnostic circuit which drives a warning lamp, and the protection against short circuits.
This device regulates in close loop the output of an automotive generator by controlling the field winding current by means of a Pulse-Width Modulation (PWM) of an external high side or low side driver at fixed frequency.

特性 Features

System in package smart power alternator regulator and 8-bit microcontroller (non-monolithic approach)
Protected high/low side field pre-driver for external MOS
Field short circuit protection
Regulated voltage driven by ECU (programmable protocol driven)
Regulated voltage thermally compensated (without protocol)
Lamp driver (wake up and warning detection)
Diagnostic via LIN
12 V Systems
Self start function
Load response control (LRC)
Field monitor (FM) output
Thermal shutdown
Package TQFP44EP 10x10