STSPIN958

Overview

The STSPIN958 is a scalable 5 A full-bridge driver for brushed DC motors, designed with high dynamic performance to support high-frequency PWM control and precise duty-cycle regulation. It features an adjustable current limiter with selectable slow or mixed decay off-time, alongside two integrated amplifiers for external shunt-based current sensing. The device offers seven distinct driving methods, including dual half-bridge, single full-bridge, and half-bridge parallel modes, ensuring versatile operation. Key electrical parameters include a maximum operating voltage of 58 V, a typical RDS(ON) of 0.33 Ω (HS + LS), and a maximum output current of 5 Arms. It operates within a temperature range of -40 °C to +85 °C in a VFQFPN-32 package.

Feature Summary

• Seven flexible driving methods including dual half-bridge, single full-bridge, and half-bridge parallel configurations
• Integrated current sensing amplifiers with fixed gain for external shunt resistor monitoring
• Adjustable power MOSFET slew rate to optimize the balance between performance and electromagnetic interference
• Comprehensive protection suite covering overcurrent, thermal shutdown, and undervoltage lockout

Applications

• High-end industrial appliances requiring scalable motor control
• Professional home appliances with brushed DC motor drives
• Systems utilizing Arduino UNO R3 or STM32 Nucleo development boards
• Applications demanding high-frequency PWM control with precise duty-cycle accuracy

Procurement Notes

Verify the specific ordering suffix to confirm the correct packaging format, such as reel or cut tape, as indicated in distributor catalogs. Ensure compatibility with the target bus voltage range up to 58 V and confirm that the thermal management solution supports the required ambient operating temperatures. Cross-reference the part number against official STMicroelectronics documentation to validate active status and availability.

Selection Notes

Select this component when a single-chip solution is needed for brushed DC motors up to 5 A RMS. It is suitable for designs requiring multiple drive topologies without external logic. Consider the integrated amplifiers if external current sensing is preferred over internal detection. Evaluate the thermal requirements for the VFQFPN-32 package under continuous load conditions to ensure reliable operation within the specified temperature range.

Part Context

The STSPIN958 belongs to the STSPIN9 series, which provides scalable high-current drivers for brushed DC and stepper motors. This family targets high-end industrial, home, and professional appliances, offering a range from 5 V to 58 V operation. The series includes both full-bridge and dual full-bridge variants, allowing designers to scale current capabilities and channel counts based on specific application demands while maintaining consistent interface and feature sets.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.