L9821

February 1997

HIGH SIDE DRIVER

.

25A PEAK OUTPUT CURRENT

.

Ω

.

DIAGNOSTIC AND PROTECTION

FUNCTIONS

P COMPATIBLE

.

GROUNDED CASE

.

INRUSH CURRENT LIMITING CIRCUIT

Pentawatt

DESCRIPTION

The L9821 High Side Driver realized with Multipo-

wer - BCD mixed technology, drives resistive or in-

ductive loads with one side connected to ground.

The input control is TTL compatible and a diagnos-

tic output provides an indication of load (open and

short) and device status (thermal and overvoltage

shutdown).Onchip thermalprotection and short cir-

cuit protection are provided.

BLOCK DIAGRAM

The device is assembled in the Pentawattpackage

with the tab connected to the ground terminal.

ORDERING NUMBER : L9821

1/7

MULTIPOWER BCD TECHNOLOGY