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L9348

September 2013

■ SUPPLY VOLTAGE RANGE: 4.8 TO 18V

■ OUTPUT VOLTAGE UP TO 40V

■ OUTPUT VOLTAGE CLAMP DURING

RECIRCULATION OF INDUCTIVE LOADS

■ OUTPUT CURRENT CAPABILITY 2 X 5A AND

2 X 3A

■ LOW POWER DISSIPATION DURING

RECIRCULATION OF INDUCTIVE LOADS BY

INTEGRATED FREE WHEELING DIODES

(3A-DRIVERS ONLY)

■ LOW ON-RESISTANCE 2 X 0.2 , 2 X 0.35 (TYP.)

■ OUTPUT SHORT CIRCUIT CURRENT

PROTECTION

■ REAL TIME DIAGNOSTIC FUNCTIONS

■ OVERTEMPERATURE SHUTDOWN

■ SIGNAL- AND POWER-GROUND-LOSS

SHUTDOWN

■ 3.3V CMOS COMPATIBLE INPUTS AND

STATUS

DESCRIPTION

The L9348 is a monolithic integrated quad low side

driver realized in advanced Multipower-BCD technol-

ogy. It is intended to drive inductive loads (relays,

electromagnetic valves) in automotive and industrial

applications.

PowerSO-36

BARE DIE

ORDERING NUMBERS:

L9348

L9348-DIE1

QUAD LOW SIDE DRIVER

Figure 1. Block Diagram

VS

+

–

VREG

=

Voltage Regulator

V

CC

V

DD

V

S

V

REG

GL

TSD

SCP

OL

V

S

FAIL

≥1

C 166kHz

PWRES

CHANNEL1

EN

PWRES

V

DD

PWRES

C 166kHz

V

S

EN

IN1

ST1

IN2

ST2

ENA

GND

99AT0073

PGND2

Q2

PGND1

Q1

V

DD

EN

CHANNEL2

PWRES

C 166kHz

EN

V

REG

FB

GL

TSD

SCP

OL

V

S

FAIL

≥1

C 166kHz

PWRES

CHANNEL3

EN

IN3

ST3

PGND3

Q3

V

DD

EN

D3

IN4

ST4

CHANNEL4

PWRES

C 166kHz

EN

PGND4

Q4

D4

5A - DRIVER

3A - DRIVER