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UC3717

Part Number	UC3717
Manufacturer	Unitrode
Description	Stepper Motor Drive Circuit
Published	Aug 26, 2005
Detailed Description	UC1717 UC2717 UC3717 Stepper Motor Drive Circuit FEATURES • • • • • • • • Half-step and Full-step Capability Bipolar Co...
Datasheet	UC3717 PDF File

Overview

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.
Two UC3717s and a few external components...

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