L585

November 1991

CAR ALTERNATOR REGULATOR

.

ALTERNATOR VOLTAGE CONTROL

.

COMPLETE FAULT DIAGNOSTICS

.

DRIVES 3 W LAMP DIRECTLY

.

LAMP SHORT CIRCUIT PROTECTION

.

SENSING INTERRUPT PROTECTION

.

100 V DUMP PROTECTION

.

300 V LOW ENERGY SPIKE PROTECTION

.

THERMAL PROTECTION

DESCRIPTION

The L585 is an integrated circuit designed for use

with an NPN darlington as a voltage regulator in a

threephase alternator charging system. It includes

fault diagnostic circuitry which drives a 3 W warning

lamp in fault conditions such as open or short circuit

connections. Protection against load dump tran-

sients, short circuits and low energy spikes is incor-

porated.

BLOCK DIAGRAM

DIP16

ORDERING NUMBERS : L585 (DIP16)

L585D1 (SO16)

SO16

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