L9308

October 1990

DUAL LOW SIDE DRIVER

.

DARLINGTON OUTPUT STAGE

.

INPUT COMPARATOR WITH WIDE RANGE

COMMON MODE OPERATION AND GROUND

COMPATIBLE INPUTS

.

INPUT COMPARATOR HYSTERESIS

.

SHORT CIRCUIT PROTECTION OF OUTPUT

WITH SOA PROTECTION

.

INTERNAL THERMAL PROTECTION WITH

HYSTERESIS

.

SINGLESUPPLY VOLTAGEFROM 3.5VUP TO

28V

DESCRIPTION

The L9308 is a monolithic interface circuit with dif-

ferentialinput comparator and open collector output

able to sink current specifically to drive lamps, re-

lays, d.c. motors, electro valves etc.

Particular care has been taken to protect the device

against destructive failures - short circuit of outputs

BLOCK DIAGRAM

ORDERING NUMBER : L9308

MINIDIP

A built in thermal shut-down switches off the device

when the IC’s internal dissipation becomes too high

and the chip temperature exceeds the security

threshold.

The input comparatorhysteresis increases the inter-

face’s noise immunity allowing the correct use in

critical environments as automotive applications.

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This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.