M54671SP is a stepper motor driver IC from Mitsubishi Electric that drives bipolar stepper motors directly by controlling the coil current with the constant current method. It features a wide output current control range of 20-1200mA and is built in a thermal shutdown circuit. It is used in office automation equipment such as printers, FDDs, HDDs, and FAXes.
The M54671SP is a semiconductor IC designed to drive bipolar stepper motors directly using a constant current method. It features a wide output current control range from 20mA to 1200mA and includes a built-in thermal shutdown circuit for protection. The device is intended for use in office automation equipment such as printers, FDDs, HDDs, and FAX machines.
| Output current range | 20 - 1200 mA |
|---|---|
| Supply voltage (Vcc) | 4.5 - 5.5 V |
| Operating temperature | -20 - 75 °C |
| Storage temperature | -55 - 125 °C |
| Thermal shutdown temperature | 160 °C |
| Allowable loss | 1.70 W |
It drives a bipolar stepper motor directly by controlling the coil current with the constant current method.
Yes, the IC has a built-in thermal shutdown circuit.
No, a flywheel diode is not built in and must be connected externally between each output and the output power supply.