LB1950V-MPB-E

Overview

The LB1950V-MPB-E is a three-phase brushless sensorless motor driver manufactured by onsemi. It is designed for driving BLDC motors without the need for external Hall effect sensors, simplifying system architecture and reducing component count. The device integrates high-side and low-side drivers to control the motor phases directly. It operates within a specified voltage range suitable for various industrial applications. The component is housed in a 30-SSOP surface-mount package, providing a compact solution for space-constrained designs.

Feature Summary

• Integrates three-phase bridge drivers for direct BLDC motor control
• Supports sensorless commutation algorithms to eliminate Hall sensors
• Includes protection features against over-current and thermal overload

Applications

• Industrial automation equipment requiring precise motor control
• Consumer appliances utilizing brushless DC fans or pumps
• Automotive systems compatible with sensorless motor architectures

Procurement Notes

Verify the specific suffix 'MPB' against the official onsemi datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure compatibility with your microcontroller's PWM signals and sense feedback loops. Cross-reference the package dimensions with your PCB footprint library to avoid assembly errors during manufacturing.

Selection Notes

Select this component when a cost-effective, integrated solution for sensorless BLDC control is required. It is suitable for applications where adding Hall sensors increases complexity or cost. Consider the operating voltage range and current capabilities relative to the target motor specifications. Evaluate the thermal performance of the 30-SSOP package under expected load conditions.

Part Context

This part belongs to the LB1950 series of motor drivers from onsemi, which focuses on integrated solutions for brushless DC motors. The series typically offers varying levels of integration and packaging options to suit different power and size constraints. The LB1950V-MPB-E represents a specific variant optimized for sensorless operation in standard industrial environments.

Replacement Considerations

Check for equivalent parts such as the LB1950V-TLM-E if different packaging or minor parameter variations are acceptable. Verify that any substitute maintains the same sensorless control logic and voltage ratings. Consult onsemi documentation for direct cross-references or recommended alternatives within the product line.