LV8771VH-TLM-H

Overview

The LV8771VH-TLM-H is a bipolar stepping motor driver manufactured by Fairchild Semiconductor, now part of ON Semiconductor. It utilizes Bi-CMOS technology and is housed in a 28-HSOP surface-mount package. The device supports PWM and constant current control modes for stepper motors. Key electrical characteristics include support for step sizes of 1, 1/2, and 1/4 to enable precise movement control. The component is designed to minimize forward voltage drop, thereby improving power efficiency and reducing heat generation during operation.

Feature Summary

• Implements PWM and constant current control strategies for accurate stepper motor positioning
• Utilizes Bi-CMOS technology to minimize forward voltage drop and enhance power efficiency
• Supports multiple step resolutions including full, half, and quarter steps for precise motion control

Applications

• Automotive systems requiring precise motion control
• Vending machines utilizing stepper mechanisms
• General purpose motion control electronics

Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm compatibility with existing PCB footprints for the 28-HSOP package. Check for RoHS compliance documentation if required for specific regulatory environments. Ensure supply chain stability as availability may be limited due to lifecycle status.

Selection Notes

Select this component when bipolar stepper motor control is required with high efficiency. Consider the 28-HSOP package constraints for board layout. Evaluate thermal management needs given the power efficiency improvements. Verify that the supported step sizes meet the precision requirements of the target application.

Part Context

This part belongs to the family of motion control electronic components produced by Fairchild Semiconductor. It is specifically categorized under motor drivers and controllers. The manufacturer has transitioned to ON Semiconductor, which continues to manage the product line documentation and legacy support for these integrated circuits.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Due to the obsolete product status, alternative components should be evaluated based on pin compatibility and functional equivalence with modern stepper driver ICs.