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 0°C to +70°C.
| Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | Stepper Motor Drive Circuit datasheet | 05 sep 1999 | |
| White paper | How smart tune regulates current in stepper motors (Rev. A) | 19 mar 2019 | ||
| Application note | UC3717 and L-C Filter Reduce EMI and Chopping Losses in Step Motor | 05 sep 1999 |
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
| Paquete | Pasadores | Descargar |
|---|---|---|
| PDIP (N) | 16 | Ver opciones |
El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.
Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI.