Monolithic Power Systems Inc. EVQ6526-R-00A

Overview

EVQ6526-R-00A from Monolithic Power Systems is a fully assembled evaluation board for the MPQ6526 six-channel half-bridge motor driver IC, supporting 7–28V input and 0.9A per channel output. It integrates on-board 5V/3.3V regulators (MPQ2013AGQ-5-Z and MPQ2013AGQ-33-Z), test points for all critical signals (CLK, CS, DI, DO, EN, FAULT, OUT1–OUT6), and screw-terminal connectors (CN4–CN7) for rapid load interfacing in DC motor control applications.

For engineers reviewing the EVQ6526-R-00A datasheet, EVQ6526-R-00A pinout, EVQ6526-R-00A application, or EVQ6526-R-00A equivalent, this board enables rapid validation of serial-controlled multi-load driving, fault diagnostics, thermal shutdown behavior, and standby current measurement (<6μA) under real-world voltage and load conditions.

Technical Context

The EVQ6526-R-00A implements the MPQ6526 QFN4×4 IC with six independent half-bridge outputs, each capable of 0.9A continuous current and 2.4A total combined output. Control is executed via SPI-compatible serial interface (CLK/CS/DI/DO), with dedicated EN enable and FAULT status reporting pins.

On-board power conditioning includes dual buck regulators delivering regulated 5V and 3.3V rails, selectable via SW1, while protection circuitry incorporates over-current detection, under-voltage lockout, and thermal shutdown-mirroring the MPQ6526's internal safety architecture.

Key Specifications

Availability

EVQ6526-R-00A is available at Aetrix Electronics and suitable for automotive body electronics, industrial actuator validation, and robotics development requiring stable component supply, traceable sourcing, and documented reference design implementation.

Supply support for EVQ6526-R-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 analog and power ICs, with core expertise in DC/DC conversion, motor control, and integrated power stages.

The MPQ6526 product line delivers compact, protected multi-channel half-bridge drivers for serial-controlled motion systems, targeting space-constrained automotive and industrial applications where reliability and diagnostic visibility are critical.

FAQ

What power supply requirements does the EVQ6526-R-00A board support?

The board accepts 7–28 V DC input at CN1 with up to 3 A peak current. On-board MPQ2013 regulators generate clean 5 V and 3.3 V rails; SW1 selects active logic supply. VIN must remain within spec to avoid triggering UVLO or thermal shutdown on the MPQ6526 IC.

How do I configure the MPQ6526 channels for full-bridge operation?

Full-bridge control requires pairing two half-bridges per motor (e.g., OUT1/OUT2 for H-bridge leg A/B). SW2 dip switches S1–S6 map individual outputs to LEDs for direction indication; firmware must coordinate complementary PWM and enable sequencing via the serial interface to prevent shoot-through.

Can the EVQ6526-R-00A drive stepper motors?

Yes - it supports bipolar stepper control by configuring two half-bridges per phase. Each channel delivers 0.9 A, sufficient for NEMA 8–11 size steppers. Microstepping requires external current sensing and closed-loop timing; the board provides all necessary signal access points (OUT1–OUT6, FAULT, EN) for such implementation.

What diagnostic functions are accessible on this evaluation board?

The FAULT pin reports over-temperature, over-current, and UVLO events as an open-drain low signal. All six OUTx pins, EN, and status lines are routed to test points. LED indicators (LED1–LED11) reflect output states and fault conditions when SW2 switches are enabled per channel.

Is the MPQ6526GQ-R3 IC on this board RoHS-compliant and halogen-free?

Yes - the MPQ6526GQ-R3 used on EVQ6526-R-00A is lead-free, halogen-free, and fully compliant with EU RoHS Directive 2011/65/EU. MPS confirms green status on its official Quality Assurance page, with material declarations available upon request.