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STK681-310N-E 데이터시트(PDF) 5 Page - ON Semiconductor

부품명 STK681-310N-E
상세설명  Forward / Reverse DC Motor Driver Intelligent Power Module
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제조업체  ONSEMI [ON Semiconductor]
홈페이지  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

STK681-310N-E 데이터시트(HTML) 5 Page - ON Semiconductor

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5
Application Circuit
Motor Drive Conditions (H : high-level input, L : low-level input)
IN1
IN2
INH
Comment
Stop 1 (Standby)
H
H
H or L
The state where the motor is not turning
Stop 2
(Power supply to the motor is off due
to an input during motor operation)
H
H
H
Power supply to the motor was turned off
due to a stop signal being applied during
motor operation.
H
L
H
L
H
H
Forward (CW)
H
L
L
An input signal that turns off the high and
low side drive elements during
forward/reverse switching is not required
Reverse (CCW)
L
H
L
Brake
L
L
L or H
The ground side MOSFET is in the on state
* : The state IN1 = IN2 = high, INH = L is illegal during motor operation.
Notes
(1) The value of the power supply bypass capacitor C1 must be set so that the capacitor ripple current, which
changes with the motor current, remains within the allowable range.
(2) While the Vref2 pin is normally handled by being left open, note that the thermal protection circuit will no
longer operate if this pin is connected to ground or the P.S pin.
(3) Current is controlled by a constant-current chopping operation by transistors TR1 and TR2. The timing for
the OUT1 or OUT2 output voltage and the TR1 or TR2 collector current is shown below.
(4) Do not connect or wire any of the NC (unused) pins that appear in either the block diagram or the
application circuit examples to the circuit pattern on the PCB.
OUT1 or OUT2
出力電圧
F1 or F2
ドレイン電流
モータ電流
30μs
0 A
GND
Vcc1-Vsat1
Ioピーク(電流設定値)
0 A
Ioピーク(電流設定値)
Vcc2(5V)
IN1
IN2
PWM
Vref1b
Vref1a
Vref2
RSO
RSI
S.P
GND
N.C
N.C
N.C
N.C
モータ
Vcc1=24V
OUT1
OUT2
C1
47μ~/50V
10μ/50V
C2
STK681-360-E
CCW
CW
15
12
13
14
17
16
18
3
19
7
9
8
6
4
5
10
11
1
2
INH
STK681-310N-E
50
μs
TR1 or TR2
コレクター電流
Collector current
Io peak
(Current setting value)
Io peak
(Current setting value)
Motor current
Output Voltage
Motor


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