DRV8840PWP

Overview

The DRV8840PWP is a half-bridge brushed DC motor driver manufactured by Texas Instruments, housed in a 28-pin PowerPAD HTSSOP package. It operates within a supply voltage range of 8.2V to 45V and delivers a continuous output current of 3.5A with peak capabilities up to 5A. The device integrates power MOSFETs for full control and power stages. It supports an operating junction temperature range from -40°C to +150°C and features a maximum operating case temperature of 85°C.

Feature Summary

• Integrates surge protection circuitry to safeguard against transient voltage events during operation.
• Features programmable decay modes that allow the user to select between braking or coasting when the motor is disabled.
• Includes comprehensive protection mechanisms such as overcurrent protection, short-circuit protection, undervoltage lockout, and thermal shutdown.

Applications

• Printers and scanners
• Gaming consoles
• Office automation equipment
• Factory automation systems
• Robotics

Procurement Notes

Verify the specific suffix 'PWP' corresponds to the tube packaging format rather than the reel variant. Confirm RoHS compliance status and moisture sensitivity level (MSL 3) requirements for your assembly process. Ensure the ordering part number matches the exact package width and lead type specifications required by your PCB footprint design.

Selection Notes

Select this component for applications requiring robust half-bridge control with integrated protection features. It is suitable for designs needing high thermal performance due to the PowerPAD package. Consider the DRV8874 if external sense resistors are undesirable, as it offers BOM reduction. Verify that the 3.5A continuous current rating meets the load requirements without exceeding thermal limits.

Part Context

This part belongs to the DRV8840 series of motor drivers designed for brushed DC motors. It serves as a complete solution combining logic control and power switching in a single IC. The series is positioned for general-purpose motor control in consumer and industrial electronics where reliability and compact form factors are prioritized.

Replacement Considerations

The DRV8840PWPR is the reel-packaged equivalent of this tube-part. For designs seeking to eliminate external sense resistors, the DRV8874 is a documented alternative that reduces bill-of-materials space and cost while maintaining similar functional capabilities.

FAQ

What is the difference between the DRV8840PWP and DRV8840PWPR?

The primary difference is the packaging format; the PWP suffix indicates tube packaging, while the PWPR suffix indicates tape and reel packaging. Both contain the same internal die and functionality.

Does the DRV8840 support stepper motors?

No, the DRV8840 is specifically designed as a half-bridge driver for brushed DC motors. Stepper motor applications typically require dual H-bridge configurations found in other series members like the DRV8841.