L9821 Datasheet, PDF (1/7 Pages) STMicroelectronics – HIGH SIDE DRIVER

L9821
. 25A PEAK OUTPUT CURRENT
. RON = 100mΩ
. DIAGNOSTIC AND PROTECTION
FUNCTIONS
. µP COMPATIBLE
. GROUNDED CASE
. INRUSH CURRENT LIMITING CIRCUIT
HIGH SIDE DRIVER
MULTIPOWER BCD TECHNOLOGY
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 thermalprotectionand short cir-
cuit protection are provided.
Pentawatt
ORDERING NUMBER : L9821
The device is assembled in the Pentawattpackage
with the tab connected to the ground terminal.
BLOCK DIAGRAM
February 1997
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