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
MULTIPOWER BCD TECHNOLOGY
Multiwatt 15
ORDERING NUMBERS:
L9341V
L9341H
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-
BLOCK & APPLICATION DIAGRAM
ers. The output voltage and current rise and fall
slopes du/dt and di/dt are controlled.
V
s
Is
VS
7
C
BAT
D
BAT
220nF
Vcc
I cc
10uF
VCC
4
COMP1
UNDERVOLTAGE
SHUTDOWN
DIAGNOSTIC
COMP2
V
flyth
V
offth
OUT1
2
I
OUT1
THERMAL
FLAG
di / dt & du / dt
CONTROL
I outs
REXT
12
10nF
DRIVER
C
10nF
O1
SHORT
CURRENT
PROTECTION
R ext
12.4k
鈩?/div>
RES1
9
BIAS
10
CHANNEL 1
RES2
SERIAL
INTERFACE
&
OUT2
CHANNEL 2
1
I
C
OUT2
CS
3
SCLK
11
SDI
5
SDO
13
OSC
6
PWM
CONTROLL
O2
10nF
OUT3
CHANNEL 3
15
I
C
OUT3
O3
10nF
OUT4
CHANNEL 4
14
IOUT4
C
8
O4
10nF
I
GND
C
OSC
GND
March 1994
1/10
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
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