L9924L datasheet(1/84 Pages) STMICROELECTRONICS

No. de pieza	L9924L

Descripción Electrónicos	Automotive vehicle conform truck car alternator regulator IC with LIN

PDF	84 Pages

Scroll/Zoom	100%

Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

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1 / 84 page

This is information on a product in full production.

February 2017

DocID028840 Rev 3

1/84

L9924L

Automotive vehicle conform truck car alternator regulator IC with LIN

Datasheet

- production data

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)

Description

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.

TQFP44EP

www.st.com

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L9924L Datasheet(PDF) 1 Page - STMicroelectronics

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