L6472HTR

Overview

The L6472HTR is a fully integrated microstepping stepper motor driver manufactured by STMicroelectronics. It features an operating voltage range of 8 V to 45 V and delivers a peak output current of 7.0 A with an RMS rating of 3.0 A. The device supports up to 1/16 microstepping resolution and utilizes a standard SPI interface for digital control. It incorporates predictive current control with adaptive decay, non-dissipative current sensing, and comprehensive protection mechanisms including overcurrent and dual-level overtemperature safeguards.

Feature Summary

• Integrates a motion engine capable of generating programmable speed profiles and target positions via SPI commands
• Features advanced current control using predictive algorithms and adaptive decay modes for precise microstepping
• Includes robust protection circuits such as non-dissipative overcurrent detection and thermal shutdown

Applications

• Driving two-phase bipolar stepper motors in industrial automation systems
• Motion control applications requiring high precision and autonomous profile generation
• Embedded systems utilizing SPI communication for motor management

Procurement Notes

Verify the specific suffix HTR indicates reel packaging when sourcing components. Confirm that the device meets RoHS compliance standards required for your assembly process. Ensure the supply chain provides documentation verifying the industrial grade temperature range specifications. Cross-reference the manufacturer part number with distributor catalogs to confirm availability and authenticity before finalizing procurement orders.

Selection Notes

Select this component for applications demanding high peak current capabilities and integrated motion control logic. The device is suitable where reducing external component count and simplifying PCB layout are priorities. Consider its SPI interface compatibility with existing microcontroller architectures. Evaluate the need for its specific protection features against potential fault conditions in the target motor system.

Part Context

The L6472HTR belongs to the L6472 family of stepper motor drivers from STMicroelectronics. This series is designed to simplify motor control by integrating power stages and digital logic into a single solution. The HTR variant specifically denotes the tape-and-reel packaging format intended for automated surface-mount assembly processes in high-volume manufacturing environments.

Replacement Considerations

Consult official STMicroelectronics documentation for verified substitute part numbers within the same product family. Ensure any replacement maintains compatibility with the required voltage range and current specifications.