Product Summary

The M54640P is a a semiconductor IC to drive a stepper motor by the bipolar method. It is widely used in Printer, FDD, HDD, Fax.

Parametrics

M54640P absolute maximum ratings: (1)Supply voltage VCC: -0.3~7V; (2)Output supply voltage VMM: -0.3~45V; (3)Logic input voltage VL: -0.3~6V; (4)Analog input voltage VC: -0.3~VCC V; (5)Comparative input voltage VR: -0.3~15V; (6)Logic input current IL: -10mA; (7)Analog input current IC: -10mA; (8)Output supply current IMM: ±1000mA; (9)Power dissipation Pd: 1.92W; (10)Operating temperature Topr: -20~75℃; (11)Storage temperature Tstg: -55~125℃.

Features

M54640P features: (1)Bipolar and constant-current drive; (2)Wide current control rage (20 – 800mA); (3)Wide supply voltage drive range (10 – 40V); (4)Built in flywheel diodes; (5)Current level can be changed by steps or continuously; (6)Built in a thermal shutdown circuit.

Diagrams

M54640P block diagram

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