Description

The L9484 is a monolithic multifunction alternator voltage regulator intended for use in automotive charging applications.

L9484 regulates the output of an automotive generator by controlling the field winding current by means of a variable frequency PWM high side driver.

Features

■ For air and liquid cooled applications

■ Ambient air temperature (thermistor) compensated

■ Special default compensation curve with TSterminal 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