M54640P View Datasheet(PDF) - MITSUBISHI ELECTRIC
Part Name
Description
View to exact match
M54640P Datasheet PDF : 6 Pages
| |||
APPLICATION EXAMPLE
Stepper motor
MITSUBISHI <CONTROL / DRIVER IC>
M54640P
STEPPER MOTOR DRIVER
1Ω
820pF
1kΩ
16 15 14 13 12 11 10 9
M54640P
1 2 3 45 67 8
820pF
56kΩ
1Ω
1kΩ
820pF
16 15 14 13 12 11 10 9
M54640P
1 234 567 8
820pF
56kΩ
5V
Phase A
I0A
I1A
24V
47µF
Phase B
I0B
I1B
PRECAUTIONS FOR USE
(1) When the whole output current changes by a large margin (for
example, when overheat protection operation causes intermittent
flow of output current), the supply voltage may undergo a
change. Therefore, selection and wiring of power supply should
be conducted cautiously to avoid such a situation that the supply
voltage exceeds the absolute maximum ratings.
(2) When the supply voltage changes by a large margin, the
operation of this IC may become unstable. In this case, the
change of supply voltage can be controlled by connecting a
capacitor at the point near to IC pin between Vcc pin and GND
pin. (See above application example.)
(3) Thermal shutdown function
• The state of thermal shutdown operation may differ according to
the way of wiring within a board. Therefore, sufficient board
evaluation should be conducted before use. When the board is
changed, operation on the replacing board should be evaluated.
• The circuit board on which this IC is mounted is designed to
realize low impedance between power supply and output pin.
Therefore, it is desirable to take a safe measure such as fixing a
fuse to avoid such a situation that the board is damaged by a fire
when output pin is internally short-circuited by excessively
applied surge voltage by accident.
|
|
Share Link: 