L9444VB Datasheet, PDF (1/5 Pages) STMicroelectronics – ONE CHIP CAR ALTERNATOR REGULATOR

L9444VB/L9448VB
L9480VB
ONE CHIP CAR ALTERNATOR REGULATOR
ADVANCE DATA
NO EXTERNAL COMPONENTS
PRECISE TEMPERATURE COEFFICIENT
PRECISE REGULATED VOLTAGE
HIGH OUTPUT CURRENT
SHORT CIRCUIT PROTECTED
REVERSE BATTERY PROTECTION
+ 80 V LOAD DUMP PROTECTION
LOW ENERGY SPIKE PROTECTION
THERMAL SHUTDOWN
VERY LOW START UP VOLTAGE
TO220
ORDERING NUMBER: L9444VB
L9448VB
L9480VB
DESCRIPTION
The devices are a ”single function” self-oscillating
voltage regulator for car alternators. Integrating
both the control section and the output power
stage on a single chip, the devices require no ex-
ternal components, reducing significantly the cost
of the system and increasing reliability.
BLOCK DIAGRAM
October 1992
1/5
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.