LB1975-E

Overview

The LB1975-E is a dual-channel DC motor driver integrated circuit manufactured by onsemi. It is designed to control two brushed DC motors or one stepper motor with a center tap. The device integrates high-side and low-side power MOSFETs, allowing for bidirectional current flow through the load. It supports PWM speed control and includes built-in protection features such as thermal shutdown and over-current protection. The component operates within a specified voltage range suitable for automotive and industrial applications, providing a compact solution for motor control systems requiring efficient switching and robust performance under varying load conditions.

Feature Summary

• Integrates dual H-bridge configuration for independent or combined motor control
• Includes internal power MOSFETs for direct drive capability
• Features thermal shutdown and over-current protection mechanisms

Applications

• Automotive seat adjustment motors
• Power window and mirror actuators
• Industrial automation linear actuators

Procurement Notes

Verify the specific suffix codes against the official datasheet to ensure correct packaging and temperature grade. Confirm pin compatibility with existing PCB layouts before integration. Cross-reference with the manufacturer's latest lifecycle status to avoid obsolescence risks during production planning.

Selection Notes

Select this component when a compact dual-motor solution is required without external gate drivers. Ensure the application voltage does not exceed the maximum rating of the integrated power stages. Consider the thermal dissipation requirements based on the expected duty cycle and ambient operating conditions for reliable long-term operation.

Part Context

This part belongs to onsemi's portfolio of motor control solutions, specifically targeting automotive and industrial markets. It represents a class of integrated power drivers that simplify system design by combining logic and power stages in a single package. Such components are critical for reducing board space and improving reliability in motion control applications.

Replacement Considerations

Consult the official cross-reference tool for verified equivalents. Ensure any substitute matches the pinout, voltage ratings, and thermal characteristics. Verify functional compatibility with existing control signals before implementation.