L9473 Datasheet, PDF (1/9 Pages) STMicroelectronics – CAR ALTERNATOR VOLTAGE REGULATOR

L9473
CAR ALTERNATOR VOLTAGE REGULATOR
1 FEATURES
■ 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
2 DESCRIPTION
The L9484 is a monolithic multifunction generator
Figure 2. Block Diagram
Figure 1. Package
Multiwatt8
Table 1. Order Codes
Part Number
L9473J
Package
Multiwatt8
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.
NTC
4
7
1
8
2
6
3
May 2005
Rev. 1
1/9