L9915 - STMicroelectronics

L9915 C-terminal alternator voltage regulator

The device is a monolithic alternator voltage regulator intended for use in automotive application. It includes the control section, the field power stage, 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 .

Features

 Fully monolithic design
 High side field driver
 Field short circuit protection
 Regulated voltage driven by ECU (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 Description The device is a monolithic alternator voltage regulator intended for use in automotive application. It includes the control section, the field power stage, fault diagnostic circuit which drives a warning lamp, and the protection against short ci.