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Features
FULLY MONOLITHIC DESIGN
HIGH SIDE FIELD DRIVE
THERMAL PROTECTION
FIELD DRIVER SHORT CIRCUIT
PROTECTION
PROTECTED DIAGNOSTIC LAMP DRIVER
REDUCED OUTPUT MODE
COMPLEX DIAGNOSTICS
LOAD RESPONSE CONTROL
Figure 1. Package
Multiwatt8
Table 1. Order Codes
Part Number
L9468N
Package
Multiwatt8
2
Description
plications.
This device regulates the output of an automotive
generator by controlling the field winding current by
means of a variable frequency PWM high side driver.
The L9468 is a monolithic multifunction generator
Voltage regulator intended for use in automotive ap-
Figure 2. Block Diagram
S
L
F
M
V
GO
FAULT
LAMP
KEY SW
TO ECM
STARTER
ASVR
F+
FIELD
(ROTOR)
RECTIFIER
BRIDGE
P
STATOR
BATTERY
LOADS
G
D02AT503
April 2005
Rev. 1
1/8