UC3717AN Texas Instruments - Yeehing Electronics

Stepper Motor Drive Circuit

Pricing (USD)

Quantity	Unit Price
1 — 99	11.811
100 — 249	10.317
250 — 999	7.955
1,000 +	4.98

The above prices are for reference only.

Specifications

For more information, please refer to datasheet

Documents

UC3717AN Datasheet

More Information

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.