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L9914 Datasheet All Silicon Automotive Voltage Regulator

Manufacturer: STMicroelectronics

Overview: L9914 All silicon automotive voltage regulator Datasheet - production data  Thermal protection  Field driver short circuit protection  RVC interface  Overvoltage protection  plex diagnostics  Load response control – LRC rate 2.

General Description

The L9914 is a monolithic multifunction generator voltage regulator intended for use in automotive applications.

This device regulates the output of an automotive generator by controlling the field winding current by means of a variable frequency PWM high side driver.

The setpoint voltage reference is selected by the engine control unit (ECU) via RVC protocol.

Key Features

  • AEC-Q100 qualified.
  • High side field driver.

L9914 Distributor