Stepper Motor Drive Circuit

The UC3717A is an improved version of the UC3717, used to Switch drive the current in one winding of a bipolar stepper motor. The UC3717A has been modified to supply higher winding current, more reliable thermal protection, and improved efficiency by providing integrated bootstrap circuitry to lower recirculation saturation voltages. The diagram shown below presents the building blocks of the UC3717A. Included are an LS-TTL compatible Logic input, a Current Sensor a monostable, a thermal shutdown network, and an H-bridge output stage. The output stage features built-in fast recovery commutating Diodes and integrated bootstrap pull up. Two UC3717As and a few external components form a complete control and drive unit for LS-TTL or micro-processor controlled stepper motor systems.
The UC3717A is characterized for operation over the temperature range of 0C to +70C.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
UC3717AN Texas Instruments Stepper Motor Drive Circuit 16-PDIP 0 to 70
UC3717ANG4 Texas Instruments Stepper Motor Drive Circuit 16-PDIP 0 to 70
UC3717AQTRG3 Texas Instruments STEPPER MOTOR CONTROLLER, 1.2A, PQCC20, GREEN, PLASTIC, LCC-20
UC3717AQ Texas Instruments Stepper Motor Drive Circuit 20-PLCC 0 to 70
UC3717AQTR Texas Instruments Stepper Motor Drive Circuit 20-PLCC 0 to 70
UC3717A 's PackagesUC3717A 's pdf datasheet
UC3717AN PDIP
UC3717ANG4 PDIP
UC3717AQ PLCC
UC3717AQG3 PLCC
UC3717AQTR PLCC
UC3717AQTRG3 PLCC




UC3717A Pinout, Pinouts
UC3717A pinout,Pin out
This is one package pinout of UC3717A,If you need more pinouts please download UC3717A's pdf datasheet.

UC3717A Application circuits
UC3717A circuits
This is one application circuit of UC3717A,If you need more circuits,please download UC3717A's pdf datasheet.


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UC3717A Pb-Free UC3717A Cross Reference UC3717A Schematic UC3717A Distributor
UC3717A Application Notes UC3717A RoHS UC3717A Circuits UC3717A footprint
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