Monolithic Power Systems Inc. EVQ6532-V-00A

Overview

EVQ6532-V-00A from Monolithic Power Systems is an AEC-Q100 qualified evaluation board for the MPQ6532 three-phase BLDC motor pre-driver IC, supporting 5V–60V input, driving six N-channel MOSFETs via three half-bridges, and accepting Hall sensor inputs and external PWM/DIR/nBRAKE control signals for automotive-grade motor control validation.

For engineers reviewing the EVQ6532-V-00A datasheet, EVQ6532-V-00A pinout, EVQ6532-V-00A application, or EVQ6532-V-00A equivalent, this board enables rapid functional verification of MPQ6532-based BLDC gate drive topologies, over-current protection tuning (via OC_REF), dead-time configuration, and Hall-commutated motor startup under real voltage and thermal conditions.

Technical Context

The EVQ6532-V-00A implements a complete reference design for the MPQ6532 pre-driver IC, which integrates bootstrap gate drivers, fault monitoring (nFAULT), sleep control (nSLEEP), and adjustable over-current protection using an external OC_REF voltage (0.125V–2.4V). It supports both 3.3V and 5V logic-level VH supply.

Board-level features include 1.4µs typical dead time between high-side and low-side switching, dedicated connectors for Hall sensors (HA/HB/HC), motor phase outputs (LAS/LBS/LCS), and MCU interface signals (PWM/DIR/nBRAKE), with all six power MOSFETs mounted in TO-263 packages rated for 80V/90A.

Key Specifications

Availability

EVQ6532-V-00A is available at Aetrix Electronics and suitable for automotive EPS development, industrial BLDC commissioning, and HVAC blower motor controller prototyping requiring stable component supply and validated AEC-Q100 reference hardware.

Supply support for EVQ6532-V-00A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs, with core expertise in DC/DC converters, motor drivers, and battery management solutions for automotive, industrial, and computing markets.

The MPQ6532 product line delivers robust three-phase BLDC pre-driver functionality targeting electric power steering (EPS), cooling fans, and auxiliary pumps-designed for high-voltage operation, integrated fault diagnostics, and seamless integration with external MCUs.

FAQ

What motor types can be evaluated with the EVQ6532-V-00A?

This board is configured for three-phase brushless DC motors with Hall-effect rotor position sensing. It supports surface-mount and through-hole TO-263 N-channel MOSFETs up to 80V/90A, enabling evaluation of automotive EPS, HVAC blowers, and industrial pumps with commutation frequencies up to 20kHz.

Does the EVQ6532-V-00A include the MPQ6532 IC?

Yes, the board integrates one MPQ6532GVE-AEC1 pre-driver IC in a QFN-28 (4mm × 5mm) package. The IC is factory-mounted and fully soldered, with all necessary decoupling, bootstrap, and current-sense components populated per the reference design.

How is over-current protection set on this evaluation board?

OCP threshold is set by applying a precise DC voltage (0.125V–2.4V) to the OC_REF connector. This voltage scales the internal comparator trip point, corresponding to a sensed current range of approximately 0.125A to 2.4A per half-bridge leg using the onboard 100mΩ sense resistors.

Can the EVQ6532-V-00A operate without Hall sensors?

No - the MPQ6532 requires Hall sensor inputs (HA/HB/HC) for six-step commutation. The board lacks sensorless BEMF detection circuitry; it is designed exclusively for Hall-based motor control. External MCU must generate timing-aligned PWM and direction signals based on Hall state transitions.

What is the purpose of the VH supply connection?

VH supplies the logic-level interface for DIR, PWM, nBRAKE, and Hall inputs. It must be set to either 3.3V or 5V to match the external controller's I/O voltage, ensuring correct signal recognition and noise margin per MPQ6532's input threshold specifications.

Is thermal management provided on the evaluation board?

The board includes copper pour areas and thermal vias beneath each TO-263 MOSFET, plus mounting holes for optional heatsinks. No active cooling is integrated, but the layout supports forced-air or passive heatsink attachment for sustained >10A phase current operation.