Vehicle network conform truck car alternator regulator for 24V Systems with LIN Diagnostics

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  • The L9924L is a controlled multifunctional alternator regulator intended to be used in cars, commercial and agricultural vehicles, with support for 12 V and 24 V systems. The control can be achieved through different communication protocols: LIN, RCV, PCM, C_term, BSS. 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.

    Key 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)
    • Diagnostic via LIN
    • LIN 2.1 interface for programming and control
    • Self start function
    • Load response control (LRC)
    • Field monitor (FM) output
    • Thermal shutdown
    • Package TQFP44EP (10 x 10 mm)

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Part Number
Package
Packing Type
Temperature (°C) Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
More info
Order from Distributors
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min
max
L9924LTR TQFP 44 10x10x1.0 Tape And Reel -40 150
Active
- - EAR99
MORE INFO

Country of Origin:

-

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L9924LTR

Package

TQFP 44 10x10x1.0

Packing Type

Tape And Reel

Unit Price (US$)

*

Operating Temperature (°C)

(min)

-40

(max)

150

Marketing Status

Active

Unit Price (US$)

-

Quantity

-

ECCN (US)

EAR99

Country of Origin

-

(*) 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

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Technical Documentation

    • Description Version Size Action
      DS11471
      Automotive vehicle conform truck car alternator regulator IC with LIN
      3.0
      1.12 MB
      PDF
      DS11471

      Automotive vehicle conform truck car alternator regulator IC with LIN

    • Description Version Size Action
      AN4810
      L9912, L9912L, L9924 and L9924L lamp handling
      1.0
      895.93 KB
      PDF
      AN4810

      L9912, L9912L, L9924 and L9924L lamp handling

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L9924LTR
Active
TQFP 44 10x10x1.0 Automotive Ecopack2

L9924LTR

Package:

TQFP 44 10x10x1.0

Material Declaration**:

Marketing Status

Active

Package

TQFP 44 10x10x1.0

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) 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.