DRV8823DCAR

Overview

The DRV8823DCAR is a Texas Instruments integrated stepper motor driver featuring four H-bridge outputs in an HTSSOP-48 package. It operates on a supply voltage range of 8 V to 32 V with a maximum output current of 1 A per channel. The device supports a typical switching frequency of 50 kHz and includes internal protection against overcurrent, short circuits, under-voltage lockout, and overtemperature conditions. It functions within a temperature range of -40 °C to +85 °C.

Feature Summary

• Integrates four N-channel power MOSFETs configured as H-bridges for bipolar stepper motor drive
• Provides programmable PWM current control via external reference voltage and sense resistor
• Supports microstepping through eight selectable current levels managed by serial interface
• Includes comprehensive on-chip shutdown protections for system reliability

Applications

• Printers
• Plotters
• Office automation equipment

Procurement Notes

Verify the specific suffix 'DCA' versus 'DCAR' regarding tape-and-reel packaging requirements. Confirm HTSSOP-48 pinout compatibility with existing PCB layouts. Ensure thermal management strategies align with the 1 A continuous current rating and operating temperature limits defined in the datasheet.

Selection Notes

Select this component for applications requiring precise bipolar stepper control with minimal external circuitry. The integrated serial interface reduces digital signal count compared to parallel drivers. Consider the 32 V maximum voltage limit and 1 A current capability when matching motor specifications. Evaluate thermal dissipation needs given the surface-mount package constraints.

Part Context

This part belongs to the DRV8x series of integrated motor drivers from Texas Instruments. These devices simplify design by combining gate drivers, sense amplifiers, and protection circuits. The DRV8823 specifically targets office automation, offering a compact solution for driving stepper motors in space-constrained environments like printers and scanners.

Replacement Considerations

• DRV8823DCA

FAQ

How is the output current controlled?

Current is programmable based on an externally supplied reference voltage and an external current sense resistor.

What protection features are included?

The device provides overcurrent protection, short-circuit protection, under-voltage lockout, and overtemperature shutdown.