DESCRIPTION

The L9308 is a monolithic interface circuit with differential input comparator and open collector output able to sink current specifically to drive lamps, relays, d.c. motors, electro valves etc.

Particular care has been taken to protect the device against destructive failures - short circuit of outputs to VS, SOA protection, supply overvoltage.

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 comparator hysteresis increases the interface’s noise immunity allowing the correct use incritical environments as automotive applications.

■ DARLINGTON OUTPUT STAGE

■ INPUT COMPARATOR WITH WIDE RANGE

COMMON MODE OPERATIONAND GROUND

COMPATIBLE INPUTS

■ INPUT COMPARATOR HYSTERESIS

■ SHORT CIRCUIT PROTECTION OF OUTPUT

WITH SOA PROTECTION

■ INTERNAL THERMAL PROTECTION WITH

HYSTERESIS

■ SINGLESUPPLYVOLTAGEFROM3.5VUP TO

28V