DRV8841PWPR

Overview

The DRV8841PWPR is a dual H-bridge motor driver integrated circuit manufactured by Texas Instruments, housed in a 28-pin HTSSOP package with an exposed PowerPAD. It supports bipolar stepper motors and brushed DC motors within a supply voltage range of 8.2V to 45V. The device delivers an output current of 1.75A per bridge and operates at junction temperatures up to 150°C. Key electrical parameters include a minimum operating voltage of 8.2V, maximum load voltage of 45V, and a typical switching frequency of 50kHz.

Feature Summary

• Integrates four half-bridges for independent control of two bipolar stepper motors or two brushed DC motors
• Includes internal protection mechanisms for overcurrent, short-circuit, undervoltage lockout, and overtemperature conditions
• Features low on-resistance power MOSFETs to minimize conduction losses and improve thermal performance

Applications

• Printers and scanners
• Office automation machines
• Gaming machines
• Robotics systems

Procurement Notes

Verify the specific suffix 'PWPR' corresponds to the HTSSOP-28 package and tape-and-reel packaging configuration. Confirm RoHS compliance and moisture sensitivity level (MSL 3) requirements against your assembly process standards. Ensure the ordering part number matches the exact temperature grade and pinout specifications required for your design.

Selection Notes

Select this component when driving bipolar stepper or brushed DC loads requiring up to 1.75A per channel. It is suitable for designs needing a compact surface-mount solution with integrated power stages. Consider thermal management strategies due to the high junction temperature rating and power dissipation characteristics inherent to the HTSSOP package.

Part Context

This device belongs to the DRV884x family of motor drivers from Texas Instruments, designed for automated equipment. It provides a complete drive solution by integrating control logic and power MOSFETs. The PWPR variant specifically denotes the tape-and-reel packaging format intended for high-volume automated assembly processes.

Replacement Considerations

The DRV8842PWPR offers similar functionality but with higher current capability (up to 5A peak). The DRV8840PWPR provides a single H-bridge configuration with 3.5A output. Verify pin compatibility and thermal requirements before substituting.