L9341 Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
L9341 Datasheet PDF : 10 Pages
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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
ID
5%
di/dt
Current through
Flyback Diode I f
di/dt
12V
t dpo
du/dt
5%
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
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