L9341

QUAD LOW SIDE DRIVER

AVANCE DATA

DU/DT AND DI/DT CONTROL

PWM CONTROLLED OUTPUT CURRENT

SHORT CURRENT PROTECTION AND DI-

AGNOSTIC

INTEGRATED FLYBACK DIODE

UNDERVOLTAGE SHUTDOWN

OVERVOLTAGE AND UNDERVOLTAGE DI-

AGNOSTIC

OVERTEMPERATURE DIAGNOSTIC

DESCRIPTION

The L9341 is a monolithic integrated circuit real-

ized in Multipower BCD-II mixed technology. The

driver is intended for inductive loads in synchro-

nous PWM applications, especially for valve driv-

ers. The output voltage and current rise and fall

slopes du/dt and di/dt are controlled.

This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

March 1994

UNDERVOLTAGE

SHUTDOWN

DIAGNOSTIC

DRIVER

SHORT

CURRENT

PROTECTION

CHANNEL 1

CHANNEL 4

CHANNEL 3

CHANNEL 2

V

flyth

V

offth

COMP1

COMP2

I

OSC

SDO

SDI

SCLK

RES1

SERIAL

INTERFACE

&

PWM

CONTROLL

BIAS

7

1

15

14

8

6

13

5

11

RES2

3

10

9

12

REXT

CS

4

OUT3

OUT4

GND

VS

V

s

I

Is

cc

I

OUT1

I

I

OUT2

OUT3

IOUT4

OSC

C

I

GND

C

BAT

D

BAT

Vcc

C

O1

C

O2

C

C

O3

O4

OUT2

VCC

2

outs

OUT1

di / dt & du / dt

CONTROL

THERMAL

FLAG

220nF

10nF

10nF

10nF

10nF

10uF

R ext

12.4k

10nF

Ω

BLOCK & APPLICATION DIAGRAM

Multiwatt 15

ORDERING NUMBERS: L9341V

L9341H

MULTIPOWER BCD TECHNOLOGY

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