LM4570LQX/NOPB

Overview

The LM4570LQX/NOPB is a fully integrated DC motor driver manufactured by Texas Instruments. It features two half-bridge outputs with power MOSFET technology, designed for driving brushed DC motors. The device operates within a supply voltage range of 2.4V to 5.5V and supports an output current of 192mA. It utilizes a parallel interface for control signals. The component is housed in an 8-WQFN package with a 2x2mm footprint and exposed pad, suitable for surface-mount installation. The junction temperature rating extends up to 150°C.

Feature Summary

• Fully integrated design combining control logic and power stages
• Dual half-bridge output configuration for bidirectional motor control
• Power MOSFET technology for efficient switching

Applications

• Brushed DC motor control
• General purpose motor drivers
• Portable electronic devices requiring low voltage motor actuation

Procurement Notes

Verify the specific suffix 'X' against the manufacturer's official documentation to confirm packaging type and availability status. Cross-reference the part number with the latest datasheet to ensure compatibility with system voltage requirements and thermal management constraints. Confirm that the 8-WQFN package dimensions align with the target PCB layout specifications.

Selection Notes

Select this component when a compact solution for low-voltage brushed DC motor control is required. The integrated nature reduces external component count compared to discrete driver solutions. Ensure the application voltage remains within the 2.4V to 5.5V range and that the peak current demands do not exceed the 192mA limit. Consider the thermal performance of the WQFN package for heat dissipation in enclosed environments.

Part Context

This part belongs to the LM4570 series of motor drivers from Texas Instruments. It is functionally similar to the LM4570LQ/NOPB variant, differing primarily in packaging or reel specifications. The series is characterized by its low voltage operation and small form factor, targeting applications where space and power efficiency are critical constraints for motor drive circuits.

Replacement Considerations

LM4570LQ/NOPB