UC3717AQTR

Overview

The UC3717AQTR is a bipolar stepper motor drive circuit manufactured by Texas Instruments. It features a half-bridge output configuration with a continuous output current of 1 A per channel. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports load voltages from 10 V to 46 V. It is housed in a 20-PLCC package and functions within an operating temperature range of 0°C to 70°C.

Feature Summary

• Integrated bootstrap circuit for high-side driver operation
• Thermal shutdown protection for fault management
• Logic interface compatible with standard control signals

Applications

• Stepper motor control systems
• Embedded motor control applications
• Robotics actuation circuits

Procurement Notes

Verify the specific suffix 'AQTR' against the manufacturer's official documentation to confirm it denotes the tape-and-reel variant of the UC3717A series. Ensure that the required packaging format matches the reel specification rather than tube packaging when sourcing this component.

Selection Notes

Select this component for designs requiring a dedicated bipolar stepper driver with integrated protection features. Consider the 20-PLCC package constraints and the specific logic interface requirements. Verify that the thermal performance meets the system's dissipation needs within the specified temperature range.

Part Context

This part belongs to the UC3717A family of stepper motor drivers. It shares functional similarities with other devices in the series but is distinguished by its surface-mount PLCC packaging and specific manufacturing revision indicated by the suffix.

Replacement Considerations

The UC3717AN is listed as a similar alternative. Verify pinout compatibility and package differences between the through-hole DIP and surface-mount PLCC formats before substitution.