DRV8452DDWR

Overview

The DRV8452DDWR is a high-performance stepper motor driver from Texas Instruments, housed in a 44-pin HTSSOP package. It supports a wide supply voltage range of 4.5 V to 55 V and delivers up to 5 A full-scale current per bridge with an integrated RDS(ON) of 100 mΩ (HS + LS). The device features an internal microstepping indexer supporting resolutions up to 1/256, automatic microstepping for step interpolation, and automatic torque control for load-dependent current adjustment. It includes built-in current sensing with ±5% accuracy, eliminating the need for external sense resistors.

Feature Summary

• Integrated microstepping indexer with support for up to 1/256 resolution and automatic step interpolation to reduce controller overhead.
• Automatic torque control adjusts coil current based on load torque to improve system efficiency during operation.
• SilentStep technology provides noiseless running at low speeds and standstill through optimized decay modes.
• Built-in current detection with ±5% full-scale accuracy removes the requirement for external sense resistors.

Applications

• Factory automation systems
• Robotics and motion control
• Medical imaging equipment
• 3D printers

Procurement Notes

Verify the specific suffix DDWR corresponds to the 44-pin HTSSOP package when ordering. Confirm that the application voltage does not exceed the 55 V maximum rating. Ensure thermal management meets the requirements for the expected current load, as the device integrates power MOSFETs. Check for any recent Product Change Notifications regarding assembly or material updates before finalizing procurement.

Selection Notes

Select this component for applications requiring high power density and precise stepper motor control without external sense resistors. It is suitable for systems operating on standard 24 V or 36 V rails. Consider the pin compatibility with DRV8462 and DRV8461 if upgrading voltage ratings is necessary later. Evaluate the need for automatic torque control and silent stepping features against system noise and efficiency requirements.

Part Context

The DRV8452 belongs to the DRV84y2 family of stepper motor drivers from Texas Instruments. It shares pinout compatibility with the DRV8462 and DRV8461 in the DDW package, allowing for design flexibility across different voltage classes. The device is designed to replace discrete FET solutions, offering higher power density in a smaller PCB footprint while integrating advanced diagnostic and protection features.

Replacement Considerations

The DRV8462DDWR and DRV8461DDWR are pin-compatible replacements within the same package, offering higher voltage ratings of 65 V. For lower voltage applications, the DRV8434S and DRV8424/DRV8426 are also pin-compatible alternatives with different current capabilities.