l9473 STMicroelectronics, l9473 Datasheet

l9473

Manufacturer Part Number

l9473

Description

Car Alternator Voltage Regulator

Manufacturer

STMicroelectronics

Datasheet

1.L9473.pdf (9 pages)

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The L9484 is a monolithic multifunction generator

Figure 2. Block Diagram

May 2005

FOR AIR AND LIQUID COOLED

APPLICATIONS

AMBIENT AIR TEMPERATURE

(THERMISTOR) COMPENSATED

SPECIAL DEFAULT COMPENSATION

CURVE WITH TS-TERMINAL OPEN

COMPENSATION CURVE WITH

APPLICATION SPECIFIC RESISTOR ON TS

THERMAL PROTECTION

FIELD DRIVER, LAMP DRIVER, RELAY

DRIVER, AND DF (FIELD MONITOR) SHORT

CIRCUIT PROTECTED

LOAD RESPONSE CONTROL

SINGLE PHASE AUTOSTART

FEATURES

DESCRIPTION

CAR ALTERNATOR VOLTAGE REGULATOR

NTC

Voltage regulator intended for use in automotive

charging applications.

This All Silicon Voltage Regulator regulates the out-

put of an automotive generator by controlling the field

winding current by means of a variable frequency

PWM high side driver.

Figure 1. Package

Table 1. Order Codes

Part Number

L9473J

Multiwatt8

Package

L9473

Rev. 1

1/9

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