MP6551GQB-Z

Overview

The MP6551GQB-Z is a monolithic H-bridge motor driver manufactured by Monolithic Power Systems. It operates within a supply voltage range of 2.5V to 14V and delivers an output current of 5A. The device features two outputs and dissipates up to 1.92W of power. It functions reliably between -40°C and +125°C. The component is housed in a QFN-14 package for surface mount installation.

Feature Summary

• Integrates an H-bridge topology for bidirectional motor control
• Supports low-voltage operation starting at 2.5V
• Includes integrated protection mechanisms for thermal and electrical faults

Applications

• Small DC motor control systems
• Solenoid actuation circuits
• Valve control applications

Procurement Notes

Verify the specific suffix GQB-Z against the official datasheet to confirm the QFN-14 package and lead-free status. Ensure the design accommodates the 1.92W power dissipation requirements. Confirm that the 2.5V to 14V input range aligns with the system power supply specifications before finalizing the order.

Selection Notes

Select this component when a compact solution is required for driving small motors or solenoids from low-voltage sources. The 5A continuous current capability supports moderate load requirements. The wide operating temperature range makes it suitable for industrial environments where thermal stability is critical for long-term reliability.

Part Context

This part belongs to the MP6551 series of motor drivers from Monolithic Power Systems. It is categorized under electromechanical drivers and PMIC solutions. The series focuses on providing integrated power stages for motion control applications, eliminating the need for external discrete MOSFETs in standard configurations.

Replacement Considerations

Consult the manufacturer's cross-reference documentation for verified substitutes. No direct public substitute part numbers are confirmed in the provided source material.