MP6500LGU-Z

Overview

The MP6500LGU-Z is a bipolar stepper motor driver from Monolithic Power Systems, housed in a 24-QFN (5x5 mm) package. It operates on a supply voltage range of 4.5V to 35V and delivers an output current of 2.5A. The device integrates internal current sensing, eliminating the need for external sense resistors. It supports full, half, quarter, and eighth-step modes via simple logic interfaces compatible with 3.3V and 5V systems. Key protection features include overcurrent protection (OCP), overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown.

Feature Summary

• Integrates two internal full-bridge drivers with built-in current regulation and sampling capabilities
• Supports multiple stepping resolutions including full, half, quarter, and eighth steps
• Includes comprehensive safety mechanisms such as overcurrent, overvoltage, UVLO, and thermal shutdown
• Features a fault indication output pin for system monitoring

Applications

• Printers
• Office automation equipment
• Industrial control systems

Procurement Notes

Verify the suffix 'Z' indicates RoHS compliance and halogen-free status per manufacturer declarations. Confirm the QFN-24 package dimensions match PCB footprint requirements. Ensure design accounts for thermal dissipation given the 125°C junction temperature rating. Cross-reference official datasheets for moisture sensitivity level and reflow soldering profiles before procurement.

Selection Notes

Select this component when high integration and space efficiency are required for bipolar stepper applications. The internal current sensing simplifies bill of materials by removing external resistors. Consider the 2.5A current capability relative to thermal constraints and PCB layout. Verify compatibility with existing logic levels and microcontroller interfaces for seamless integration into motion control designs.

Part Context

This part belongs to the MP6500L series of integrated bipolar stepper motor drivers. It shares functional similarities with other MPS stepper drivers but is distinguished by its specific current rating and internal sensing architecture. The series targets cost-sensitive, compact motor control solutions requiring robust protection features and simplified peripheral component counts.

Replacement Considerations

MP6500GU-P is listed as a parameter-equivalent substitute within the same product family.

FAQ

Does the MP6500LGU-Z require external current sense resistors?

No, the device features internal current sensing and regulation, which eliminates the need for external sense resistors.

What stepping modes does the MP6500LGU-Z support?

It supports full step, half step, quarter step, and eighth step modes.