L6472PD

Overview

The L6472PD is a fully integrated microstepping motor driver with an embedded motion engine and SPI interface, manufactured by STMicroelectronics. It operates within a supply voltage range of 8 V to 45 V and delivers a continuous phase current of 3 A r.m.s., with a peak output current capability of 7.0 A. The device utilizes DMOS technology in a PowerSO-36 surface-mount package. It supports bipolar stepper motors with resolution up to 1/16 microstepping via adaptive decay mode. The operating junction temperature range extends from -40 °C to +150 °C.

Feature Summary

• Integrates a dual low RDS(on) DMOS full bridge with accurate on-chip non-dissipative current sensing for predictive control and overcurrent protection.
• Features a digital control core that generates programmable user-defined motion profiles including acceleration, deceleration, speed, and target position commands.
• Provides comprehensive protection mechanisms including two levels of overtemperature protection, low bus voltage detection, and programmable overcurrent safeguards.

Applications

• Driving two-phase bipolar stepper motors requiring microstepping capabilities
• Multi-motor applications utilizing daisy-chain SPI configurations
• Industrial automation systems demanding robust thermal performance

Procurement Notes

Verify the specific suffix 'PD' confirms the PowerSO-36 tube packaging variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design accounts for the specified humidity sensitivity classification during storage and handling procedures.

Selection Notes

Select this component for designs requiring high peak current delivery and integrated motion control logic without external MCU processing overhead. The PowerSO-36 package offers superior thermal dissipation compared to smaller footprints. Verify compatibility with 3.3 V or 5 V logic levels for the SPI interface signals.

Part Context

This part belongs to the STSPIN L64 series of advanced motor drivers. It represents a fully integrated solution combining analog power stages with digital control cores. The L6472 variant specifically targets applications needing precise microstepping and robust protection features within a compact form factor.

Replacement Considerations

L6474PDTR is identified as a parameter-equivalent alternative available from the same manufacturer.