L9912中文资料Vehicle network conform truck car alternator regulator for 12V Systems数据手册ST规格书

描述 Description

The L9912 is a controlled multifunctional alternator regulator intended to be used in cars, commercial and agricultural vehicles. It supports 12 V system. The control can be achieved through different communication protocols: RCV, PCM, C_term. It is a System-In-Package solution with smart power alternator regulator IC coupled with a 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 closed 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

• AEC-Q100 qualified
• 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)
• Self start function
• Load response control (LRC)
• Field monitor (FM) output
• Thermal shutdown
• Package TQFP44EP (10 x 10 mm)