L9914:All Silicon Voltage regulator

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

  • High side field driver
  • Thermal protection
  • Field driver short circuit protection
  • RVC interface
  • Overvoltage protection
  • Complex diagnostics
  • Load response control
    • LRC rate 2.5 s (L9914A, L9914C)
    • LRC rate 5.0 s (L9914B)
Product Specifications
DescriptionVersionSize
DS4742: All silicon voltage regulator5.0356 KB
Sample & Buy
Part NumberPackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
L9914BMW 8LTube-40150--NECEAR99MOROCCO
L9914CMW 8LTube-40150--NECEAR99MOROCCO
L9914AMW 8LTube-40150--NECEAR99MOROCCO
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
L9914BMW 8LAutomotiveEcopack1
L9914CMW 8LAutomotiveEcopack1
L9914AMW 8LAutomotiveEcopack1new_ipc-wspc-1752a_md_k8bv-uh40cb1_signed.pdf
All silicon voltage regulator L9914
new_ipc-wspc-1752a_md_k8bv-uh40cb1_signed.pdf L9914