MP6534GU-Z

Overview

The MP6534GU-Z is a three-phase brushless DC motor pre-driver manufactured by Monolithic Power Systems. It operates within a supply voltage range of 5 V to 55 V and supports junction temperatures from -40 °C to +125 °C. The component is housed in a 40-pin QFN (5x5 mm) package with an exposed pad for thermal management. It features a maximum power dissipation of 3.47 W and includes humidity sensitivity classification. This device functions as a pre-driver, providing gate drive signals for external power MOSFETs in BLDC motor applications.

Feature Summary

• Provides gate drive control for three half-bridge configurations using external N-channel power MOSFETs.
• Incorporates internal bootstrap diode and charge pump circuitry to maintain high-side gate drive voltage.
• Includes programmable dead-time control to prevent shoot-through currents in the bridge legs.
• Features integrated protection mechanisms including over-current protection, under-voltage lockout, and over-temperature shutdown.

Applications

• Three-phase brushless DC motor control systems
• Fan and blower motor drivers
• Industrial automation motion control
• Automotive cooling system actuators

Procurement Notes

Verify the specific suffix 'GU' corresponds to the required tape-and-reel packaging configuration and lead-free status. Confirm that the 40-QFN footprint matches the PCB layout guidelines provided in the official datasheet. Ensure compatibility with the target operating temperature range and validate that external MOSFET selection aligns with the driver's current sourcing capabilities.

Selection Notes

Select this component when designing a cost-effective solution for driving medium-power BLDC motors requiring external power stages. It is suitable for applications where precise timing control and robust protection features are necessary. Consider the thermal performance of the QFN package and ensure adequate copper area for heat dissipation. Verify that the input logic levels match the microcontroller or controller IC used in the system.

Part Context

The MP6534 belongs to the MPS MP653x family of pre-drivers designed for three-phase motor applications. It complements other variants like the MP6530 and MP6535, offering a balance of performance and integration. The GU-Z designation indicates a specific package and environmental compliance version within the broader product line.

Replacement Considerations

MP6534GU-P is listed as a parameter-equivalent alternative. Verify pinout compatibility and electrical specifications before substitution. Other family members such as MP6535 may offer similar functionality but require validation of specific interface and protection differences.