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MB3863 Datasheet(PDF) 5 Page - Fujitsu Component Limited.

Part No. MB3863
Description  DUAL REVERSIBLE MOTOR DRIVER
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Maker  FUJITSU [Fujitsu Component Limited.]
Homepage  http://edevice.fujitsu.com/fmd/en/index.html
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MB3863 Datasheet(HTML) 5 Page - Fujitsu Component Limited.

 
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MB3863
5
s
s
s
s OPERATIONS
1.
Forward and Reverse
Switching control mode A or B pairs Q2 and Q3, or Q1 and Q4, respectively, while reversing the supply current
to the motor for each switching. When Q2 and Q3 are in use, B-OUT and A-OUT are High level and Low level,
respectively. In this case, current flows B-OUT
→ motor → A-OUT, causing forward operation as described in
the table below.
When Q1 and Q4 are in use, current flows in the reverse direction to the above flow, causing reverse motor
operation.
2.
Brake
Control mode C operates Q2 and Q4 while stopping Q1 and Q3.
Since A-OUT and B-OUT are held at Low level, both poles of the motor are short-circuited and the motor is
stopped.
3.
Stand-by
Control mode D turns Q1 to Q4 OFF and the motor has no current flow.
In this mode, the power supply current is less than 100
µA.
* : Input mode:1: +2.4 V Min.
0: +0.4 V Max.
Mode
Input mode*
Operation state of output transistor
State of output pin
Output operation mode
A=IN
B=IN
Q1
Q2
Q3
Q4
A-OUT
B-OUT
A
1
0
OFF
ON
ON
OFF
L
H
Forward (Reverse)
B
0
1
ON
OFF
OFF
ON
H
L
Reverse (Forward)
C
1
1
OFF
ON
OFF
ON
L
L
Brake
D
0
0
OFF
OFF
OFF
OFF
Open (High impedance)


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