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L9473

May 2005

1

FEATURES

APPLICATIONS

(THERMISTOR) COMPENSATED

CURVE WITH TS-TERMINAL OPEN

APPLICATION SPECIFIC RESISTOR ON TS

DRIVER, AND DF (FIELD MONITOR) SHORT

CIRCUIT PROTECTED

2

DESCRIPTION

The L9484 is a monolithic multifunction generator

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.

CAR ALTERNATOR VOLTAGE REGULATOR

Figure 2. Block Diagram

7

6

3

2

8

1

4

NTC

Rev. 1

Figure 1. Package

Table 1. Order Codes

Part Number

Package

L9473J

Multiwatt8

Multiwatt8