LV8732VL-MPB-H

Overview

The LV8732VL-MPB-H is a bipolar stepper motor driver manufactured by onsemi, designed for precise motion control applications. It integrates high-voltage power stages capable of driving loads up to 40V with peak currents reaching 1.5A per phase. The device supports full-step, half-step, and microstepping modes to ensure smooth operation and reduced acoustic noise. Key internal features include an overcurrent protection circuit, thermal shutdown mechanism, and under-voltage lockout to safeguard the component during fault conditions. It is housed in a compact MPB package suitable for space-constrained designs.

Feature Summary

• Integrates dual H-bridge power stages for direct bipolar stepper motor drive
• Supports multiple stepping modes including full, half, and microstepping
• Includes comprehensive protection mechanisms such as overcurrent and thermal shutdown

Applications

• Office automation equipment such as printers and scanners
• Security systems including CCTV camera pan-tilt mechanisms
• Automotive interior components like seat adjusters and sunroof drives

Procurement Notes

Verify the exact suffix and package variant against the official datasheet before ordering. Confirm that the intended operating voltage and current requirements align with the specified limits. Check for any specific handling instructions related to moisture sensitivity levels. Ensure compatibility with the control logic voltage levels used in the target system design.

Selection Notes

Select this component when a robust, integrated solution for bipolar stepper motors is required without external power transistors. Consider its thermal performance and protection features for environments with limited cooling. Evaluate the microstepping capability if smooth motion and low vibration are critical design parameters. Compare pin compatibility with existing board layouts if replacing legacy drivers.

Part Context

This part belongs to the LV8702V/LV8732V series of stepper motor drivers from onsemi. These devices are engineered for cost-effective and reliable motion control in consumer and industrial electronics. The series emphasizes ease of use by integrating necessary protection circuits directly into the silicon die, reducing the bill of materials for designers.

Replacement Considerations

Check for direct pin-to-pin compatible alternatives within the same manufacturer family. Verify that substitute parts maintain identical voltage ratings and current capabilities. Ensure that the switching characteristics and control interface logic remain compatible with the existing firmware or hardware controller.