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M54640P - STEPPER MOTOR DRIVER

General Description

The M54640P is a semiconductor IC to drive a stepper motor by the bipolar method.

Key Features

  • q Bipolar and constant-current drive q Wide current control rage (20.
  • 800mA) q Wide supply voltage drive range (10.
  • 40V) q Built in flywheel diodes q Current level can be changed by steps or continuously. q Built in a thermal shutdown circuit power VMM Output supply M54640P Ph → 8.

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Full PDF Text Transcription (Reference)

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MITSUBISHI M54640P STEPPER MOTOR DRIVER DESCRIPTION The M54640P is a semiconductor IC to drive a stepper motor by the bipolar method. PIN CONFIGURATION (TOP VIEW) Output MB ← 1 One-shot-multi T→ 2 time constant Output power VMM 3 supply 4 GND 5 Power supply VCC Output current value setting Output current direction switching I1 6 7 16 → E 15 → MA 14 13 GND 12 11 ← VR 10 ← C 9 Io Comparator reference input Comparator input Output current setting Current sensor Output FEATURES q Bipolar and constant-current drive q Wide current control rage (20 – 800mA) q Wide supply voltage drive range (10 – 40V) q Built in flywheel diodes q Current level can be changed by steps or continuously.