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  • 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
    • 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)

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Technical Documentation

    • Description Version Size Action
      DS4742
      All silicon automotive voltage regulator
      6.0
      357.95 KB
      PDF
      DS4742

      All silicon automotive voltage regulator

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L9914A
Active
MW 8L Automotive Ecopack1

L9914A

Package:

MW 8L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

MW 8L

Grade

Automotive

RoHS Compliance Grade

Ecopack1

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
L9914A No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube MW 8L -40 150 MOROCCO 5.5 / 1k

L9914A

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

5.5 / 1k

ECCN (EU)

NEC

Packing Type

Tube

Package

MW 8L

Operating Temperature (°C)

(min)

-40

(max)

150

Budgetary Price (US$)* / Qty

5.5 / 1k

Country of Origin

MOROCCO

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors