L9468N(2013) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

L9468N
(Rev.:2013)

ALL SILICON VOLTAGE REGULATOR

STMicroelectronics 

L9468

ALL SILICON VOLTAGE REGULATOR

1 Features

■ FULLY MONOLITHIC DESIGN

■ HIGH SIDE FIELD DRIVE

■ THERMAL PROTECTION

■ FIELD DRIVER SHORT CIRCUIT

PROTECTION

■ PROTECTED DIAGNOSTIC LAMP DRIVER

■ REDUCED OUTPUT MODE

■ COMPLEX DIAGNOSTICS

■ LOAD RESPONSE CONTROL

2 Description

The L9468 is a monolithic multifunction generator

Voltage regulator intended for use in automotive ap-

Figure 2. Block Diagram

Figure 1. Package

Multiwatt8

Table 1. Order Codes

Part Number

L9468N

Package

Multiwatt8

plications.

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.

TO ECM

FM

F+

FIELD

(ROTOR)

S

ASVR

G

FAULT

L

LAMP KEY SW

VGO

STARTER

BATTERY

P

LOADS

STATOR

RECTIFIER

BRIDGE

D02AT503

September 2013

Rev. 2

1/8

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