VNH3SP30 查看數據表（PDF） - STMicroelectronics
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VNH3SP30 Datasheet PDF : 26 Pages
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VNH3SP30
WAVEFORMS AND TRUTH TABLE
TRUTH TABLE IN NORMAL OPERATING CONDITIONS
In normal operating conditions the DIAGX/ENX pin is considered as an input pin by the device. This pin must be externally
pulled high.
INA
INB
DIAGA/ENA
DIAGB/ENB
OUTA
OUTB
Comment
1
1
1
1
0
1
1
H
H
Brake to VCC
1
H
L
Clockwise
0
1
1
1
L
H
Counter cw
0
0
1
1
L
L
Brake to GND
PWM pin usage:
In all cases, a “0” on the PWM pin will turn-off both LSA and LSB switches. When PWM rises back to “1”, LSA or LSB
turn on again depending on the input pin state.
NB: in no cases external pins (except for GNDB and GNDA) are allowed to be connected with ground.
TYPICAL APPLICATION CIRCUIT FOR DC TO 10KHz PWM OPERATION
Reg 5V
VCC
+5V
3.3K
1K
DIAGA/ENA
VCC
+5V
3.3K
1K
DIAGB/ENB
µC
1K
PWM
HSA
OUTA
OUTB
HSB
1K
INA
(*)
LSA
10K
CW
M
1K
INB
LSB
GNDA
CCW
(*) Open load detection in off mode
S
G
D
b) N MOSFET
GNDB
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