LV8731V-MPB-H

Overview

The LV8731V-MPB-H is a bipolar stepper motor driver manufactured by onsemi, designed for general-purpose motion control applications. It integrates full control and power stages within a single BiCDMOS technology package. The device supports multiple stepping resolutions including 1, 1/2, 1/4, and 1/16 steps to accommodate varying precision requirements. It operates with a supply voltage range of 0V to 5.5V for logic and handles load voltages between 9V and 32V. The output configuration consists of four half-bridges capable of delivering up to 2A current. The component is housed in a 44-LSSOP package with a bare pad for thermal dissipation.

Feature Summary

• Integrates complete control logic and power output stages using BiCDMOS technology
• Supports selectable stepping resolutions from full step to 1/16 microstepping
• Features parallel interface for straightforward digital control connectivity

Applications

• General purpose stepper motor control systems
• Motion control modules requiring integrated drive solutions
• Automation equipment utilizing bipolar stepper motors

Procurement Notes

Verify the current lifecycle status as the part may be discontinued or subject to limited availability. Confirm that the 44-LSSOP package dimensions align with the target PCB footprint. Ensure the design accommodates the thermal requirements associated with the bare pad on the LSSOP package. Check for valid RoHS compliance documentation before finalizing procurement specifications.

Selection Notes

Select this component when a fully integrated stepper driver is required to minimize board space. The parallel interface is suitable for designs where pin count efficiency is prioritized over serial communication flexibility. Consider the 2A output capability against the specific torque and current demands of the intended bipolar stepper motor. Evaluate the 9V to 32V load voltage range against the available system power supply.

Part Context

This part belongs to the LV8731 series of motor drivers from onsemi. It serves as the packaged semiconductor solution for driving bipolar stepper motors. The product line focuses on providing integrated control and power functions in a compact surface-mount format. Related development tools include evaluation boards such as the LV8731VGEVB for testing and validation purposes.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs if considering alternative stepper drivers from other manufacturers.