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L9341 데이터시트 PDF




STMicroelectronics에서 제조한 전자 부품 L9341은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 L9341 자료 제공

부품번호 L9341 기능
기능 QUAD LOW SIDE DRIVER
제조업체 STMicroelectronics
로고 STMicroelectronics 로고


L9341 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




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L9341 데이터시트, 핀배열, 회로
L9341
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-
QUAD LOW SIDE DRIVER
AVANCE DATA
MULTIPOWER BCD TECHNOLOGY
Multiwatt 15
ORDERING NUMBERS: L9341V
L9341H
ers. The output voltage and current rise and fall
slopes du/dt and di/dt are controlled.
BLOCK & APPLICATION DIAGRAM
Vcc VCC
4
I cc
10uF
10nF
REXT
12
R ext
12.4k
RES1
9
RES2
10
CS
3
SCLK
11
SDI
5
SDO
13
OSC
6
C
OSC
UNDERVOLTAGE
SHUTDOWN
THERMAL
FLAG
BIAS
SERIAL
INTERFACE
&
PWM
CONTROLL
GND
8
I
GND
Vs
Is
VS
7
DIAGNOSTIC
COMP1
COMP2
V
flyth
V
offth
DRIVER
di / dt & du / dt
CONTROL
SHORT
CURRENT
PROTECTION
I outs
CHANNEL 1
CHANNEL 2
CHANNEL 3
CHANNEL 4
220nF
CD
BAT
BAT
OUT1
2
IOUT1
10nF
C
O1
OUT2
1
I
OUT2
C
O2
10nF
OUT3
15
I
OUT3
C
O3
10nF
OUT4
14
IOUT4
C
O4
10nF
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.




L9341 pdf, 반도체, 판매, 대치품
L9341
Figure 1: Logic Diagram of PWM Generation.
INTERNAL
CLOCK
CLK
PWM1
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
PWM2
PWM3
PWM4
Figure 2: Output Switching Diagram.
+12V
Vs Isf
D
If
DMOS I D
GND
Is
220 nF
5
20 mH
OUT
I out
10 nF
V out
Internal PWM Signal
Output Voltage V out
du/dt
Current through
Low Side Switch
t dpo
I D 5%
di/dt
Current through
Flyback Diode
If
di/dt
t dpo
du/dt
5%
12V
0
1A
di/dt
0
1A
di/dt
0
Figure 3: Test Circuit for Schaffner Pulses.
+5V
10 uF
+12V
220 nF
Vs
VCC
GND
OUT1
OUT2
OUT3
OUT4
4/10
D1
-2V to 40 V
Schaffner
Generator
4 x 10 nF
4 x 1 nF

4페이지










L9341 전자부품, 판매, 대치품
L9341
Figure 7: Diagnostic Information from QLSD to Microcontroller.
Bit Nr.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Name
F11
F12
F21
F22
F31
F32
F41
F42
RES1
RES2
TSDF
C1
C2
C3
C4
1
Contents
COMP1 State at Positive Edge of PWM1 (0: Vout1 > Vflyth; 1: Vout1 < Vflyth)
COMP2 State at Negative Edge of PWM1 (1: Vout1 > Voffth; 0 : Vout1 < Vofth)
COMP1 State at Positive Edge of PWM2 (0: Vout2 > Vflyth; 1: Vout2 < Vflyth)
COMP2 State at Negative Edge of PWM2 (1: Vout2 > Vofth; 0 : Vout2 < Vofth)
COMP1 State at Positive Edge of PWM3 (0: Vout3 > Vflyth; 1: Vout3 < Vflyth)
COMP2 State at Negative Edge of PWM3 (1: Vout3 > Voffth; 0 : Vout3 < Vofth)
COMP1 State at Positive Edge of PWM4 (0: Vout4 > Vflyth; 1: Vout4 < Vflyth)
COMP2 State at Negative Edge of PWM4 (1: Vout4 > Voffth; 0 : Vout4 < Vofth)
Logic State of RES1 Input (0: RES1 = L ; 1: RES1 = H)
Logic State of RES2 Input (0: RES2 = L ; 1: RES2 = H)
Thermal Diagnostic Flag ( 0: Overtemperature ; 1:Normal )
Current at Negative Edge of PWM1 ( 0: Iout > Ioutl ; 1: Iout < Ioutl)
Current at Negative Edge of PWM2 ( 0: Iout > Ioutl ; 1: Iout < Ioutl)
Current at Negative Edge of PWM3 ( 0: Iout > Ioutl ; 1: Iout < Ioutl)
Current at Negative Edge of PWM4 ( 0: Iout > Ioutl ; 1: Iout < Ioutl)
Framing Information (always 1)
Figure 8.
PWM
PWM
ID
V OUT
tC
t dPO
tV
t
PWMON
min
Sample point COMP2
Sample point COMP1
FFigig. .A1
Note:
For safty diagnostic take notice of the following conditions:
tPWMON tdPOMAX + tC + tV (see Fig. A)
tPWMOFF tdPOMAX + tV (see Fig. B)
tC
=
ID
SOCMIN
tV
=
Voutfmax
SOVMIN
V OUT
t dPO
t
PWMOFF
min
tV
Sample point COMP1
Sample point COMP2
FFigig..B2
7/10

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