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L9362

QUAD LOW SIDE DRIVER

STMicroelectronics 

L9362

QUAD LOW SIDE DRIVER

s QUAD LOW-SIDE DRIVER FOR AUTOMO-

TIVE APPLICATION

s CURRENT FEEDBACK OUTPUT FOR EACH

POWER STAGE

s 5V SUPPLY VOLTAGE

s INTERNAL FAILURE DIAGNOSTIC

s OUTPUT VOLTAGE SLOPE CONTROL FOR

LOW ELECTRO MAGNETIC EMISSIONS

s INTERNAL SHORT CIRCUIT PROTECTION

s OVERTEMPERATURE PROTECTION AND

OVERCURRENT PROTECTION AND DISABLE

s SWITCHING FREQUENCY UP TO 2kHZ

s INTERNAL ZENER CLAMP OF THE OUTPUT

VOLTAGE FOR INDUCTIVE LOADS

s PARALLEL INPUT

s SPI FOR DIAGNOSTIC INFORMATION EX-

CHANGE

s RESET INPUT

BLOCK DIAGRAM

VCC

PowerSO36

ORDERING NUMBER: L9362

s TYPICAL INTERNAL OSCILLATOR FRE-

QUENCY 325kHZ

DESCRIPTION

The Quad Driver is an integrated quad low-side

power switch with power limitation, load interrupt

and shorted load detection, thermal shutdown, er-

ror detection via SPI interface and integrated Z-di-

odes for output clamping, free running diodes.

VCC

VCC

ROL

NON1

NON2

=

Reset

Trigger

S

R

NON3

NON4

Reset

VCC

FR IRES

RESET

=

Driver

=

NON1

I_SCB Filter

t_SCB

NON1

dV/dt

Control

Overtemp.

=

=

I_OL Filter

t_OL

SDI

VCC

Failure

NON1

=

Register

(FR)

=

SCG Filter

CLK

VCC

Shift

Register

t_SCG

=

Reset ≥1

=

NSC

VCC

OSC

IRES

SDO

Under

voltage

RESET

RESET

= Oscillator

OUT1

OUT2

OUT3

OUT4

PGND1

PGND2

PGND3

PGND4

CFB1

CFB2

CFB3

CFB4

99AT0007

LGND

SGND

NRES

May 2002

1/17

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