POWERSTEP01

Overview

The POWERSTEP01 is a system-in-package integrating an SPI programmable microstepping controller and eight N-channel power MOSFETs for stepper motor applications. It supports bus voltages from 7.5 V to 85 V with phase currents up to 10 A rms. The device features dual low RDS(on) full-bridges, embedded non-dissipative overcurrent protection, and thermal shutdown. Digital control allows speed profile generation and positioning calculations via a 5-Mbit/s SPI interface.

Feature Summary

• Integrates microstepping controller and power stage in a single package
• Provides fully digital motion control through SPI interface
• Includes comprehensive protection mechanisms against faults

Applications

• Industrial automation systems
• High-power bipolar stepper motor drives
• Compact motion control solutions requiring integrated power stage

Procurement Notes

Verify the specific ordering suffix to ensure correct packaging and temperature grade compatibility. Confirm that the VFQFPN-9 package dimensions match your PCB footprint requirements. Ensure the host microcontroller supports the required SPI communication speed and voltage levels for reliable operation.

Selection Notes

Select this component when a compact solution combining control logic and high-current power switching is required. It is suitable for designs needing advanced current control or voltage mode driving up to 85 V. Consider the integrated protections if system robustness against stall or overcurrent conditions is critical.

Part Context

This part belongs to the STSPIN family of stepper motor drivers from STMicroelectronics. It represents a system-level integration approach, consolidating the driver IC and power MOSFETs into one unit. This contrasts with discrete solutions or simpler driver ICs that require external power stages.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation.