1/8

L9468

September 2013

1Features

■ 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-

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.

ALL SILICON VOLTAGE REGULATOR

Figure 2. Block Diagram

FIELD

(ROTOR)

STARTER

BATTERY

STATOR

ASVR

LOADS

RECTIFIER

BRIDGE

KEY SW

FM

S

F+

L

VGO

P

G

TO ECM

FAULT

LAMP

D02AT503

Figure 1. Package

Table 1. Order Codes

Part Number

Package

L9468N

Multiwatt8

Multiwatt8

Rev. 2