September 2013

Rev 3

1/11

11

L9466

Car alternator voltage regulator

Features

■ For air and liquid cooled applications

■ DF output (inverted field monitor)

■ Thermal protection

■ FIeld driver, lamp driver, relay driver, and DF

(field monitor) short circuit protected

■ Load response control

■ Single phase autostart

Description

The L9466 is a monolithic multifunction generator

Voltage regulator intended for use in automotive

charging applications.

This All Silicon Voltage Regulator regulates the

output of an automotive generator by controlling

the field winding current by means of a variable

frequency PWM high side driver.

Multiwatt8

Table 1.

Device summary

Order code

Package

Packing

L9466N

Multiwatt8

Tube

www.st.com