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M54543AFP Datasheet(PDF) 4 Page - Mitsubishi Electric Semiconductor |
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M54543AFP Datasheet(HTML) 4 Page - Mitsubishi Electric Semiconductor |
4 / 4 page Bi-DIRECTIONAL MOTOR DRIVER WITH BRAKE FUNCTION AND THERMAL SHUT DOWN FUNCTION M54543AFP MITSUBISHI <CONTROL / DRIVER IC> APPLICATION EXAMPLES 1) When VCC and VCC’ are used as the same power supply CAUTIONS Since the thermal protection function of this IC may not work in abnormal status (oscillation, low supply voltage, output short- circuit, etc.), check the operation in the IC installation status when using this function. When the motor back electromotive force is large with the brakes applied, for example, malfunction may occur in internal parasitic Di. If flyback current of 1A or more flows, add Schottky Di to the portion between the output and the GND. When the IC is used at a high speed for PWM, etc., note that switching of output results in delay of approx.10 µs. 2) When VCC is used as a fixed power supply and VCC’ is used as a variable power supply 3) When VCC is used as a variable power supply and VCC’ is used as a fixed power supply VCC R2=3 Ω R1= 2 Ω Input 2 Input 1 10 7 8 9 6 M54543AFP 1 4 3 25 M 10 – 100 µF VCC Input 2 Input 1 10 7 8 9 6 M54543AFP 1 4 3 25 M 1 – 10 µF 2 Ω C C 10 – 100 µF VCC’ Input 2 Input 1 10 7 8 9 6 M54543AFP 1 4 3 25 M 10 – 100 µF 2 Ω C C 1 – 10 µF |
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