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UC3717 - Stepper Motor Drive Circuit

General Description

The UC3717 has been designed to control and drive the current in one winding of a bipolar stepper motor.

The circuit consists of an LSTTL-compatible logic input, a current sensor, a monostable and an output stage with built-in protection diodes.

Key Features

  • Half-step and Full-step Capability Bipolar Constant Current Motor Drive Built-in Fast Recovery Schottky Commutating Diodes Wide Range of Current Control 5-1000mA Wide Voltage Range 10-45V Designed for Unregulated Motor Supply Voltage Current Levels can be Selected in Steps or Varied Continuously Thermal Overload Protection.

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Datasheet Details

Part number UC3717
Manufacturer Unitrode
File Size 515.53 KB
Description Stepper Motor Drive Circuit
Datasheet download datasheet UC3717 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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UC1717 UC2717 UC3717 Stepper Motor Drive Circuit FEATURES • • • • • • • • Half-step and Full-step Capability Bipolar Constant Current Motor Drive Built-in Fast Recovery Schottky Commutating Diodes Wide Range of Current Control 5-1000mA Wide Voltage Range 10-45V Designed for Unregulated Motor Supply Voltage Current Levels can be Selected in Steps or Varied Continuously Thermal Overload Protection DESCRIPTION The UC3717 has been designed to control and drive the current in one winding of a bipolar stepper motor. The circuit consists of an LSTTL-compatible logic input, a current sensor, a monostable and an output stage with built-in protection diodes.