Monolithic Power Systems Inc. EVQ6526-U-00A

Overview

EVQ6526-U-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 up to 0.9A per channel with serial interface control, thermal shutdown, short-circuit protection, and <6μA standby quiescent current. It enables rapid validation of multi-load DC motor drive in automotive body electronics.

For engineers reviewing the EVQ6526-U-00A datasheet, EVQ6526-U-00A pinout, EVQ6526-U-00A application, or EVQ6526-U-00A equivalent, this board provides ready-to-use hardware for functional verification, fault diagnostics, serial command timing analysis, and load interface characterization under real-world voltage and thermal conditions.

Technical Context

The EVQ6526-U-00A implements the MPQ6526 QFN5×5 IC with six independent half-bridge outputs, each featuring integrated high-side and low-side DMOS FETs (R_DS(on) ≤2Ω at 150°C). Control is delivered via SPI-compatible 3-wire serial interface (CLK, CS, DI, DO), with dedicated EN and FAULT pins for enablement and fault reporting.

Board-level power management includes on-board MPQ2013AGQ-5-Z (5V) and MPQ2013AGQ-33-Z (3.3V) regulators, dual-input VIN/GND connectors, test points for all critical signals (OUT1–OUT6, VS1, VCC, GND2–GND7), and LED indicators for output state monitoring. Fault detection triggers FAULT pin low on over-temperature or over-current events.

Key Specifications

Availability

EVQ6526-U-00A is available at Aetrix Electronics and suitable for automotive body control module development, industrial valve actuator validation, robotics joint controller testing, and HVAC damper motor qualification requiring stable component supply and repeatable evaluation hardware.

Supply support for EVQ6526-U-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 design centers across Asia and North America and global manufacturing partnerships.

The MPQ6526 product line delivers robust, protected multi-channel motor drivers for automotive and industrial applications where reliability, compact layout, and diagnostic capability are critical - specifically targeting electronic power steering assist, seat/mirror adjustment, and programmable solenoid control.

FAQ

What is the maximum continuous input voltage the EVQ6526-U-00A board can accept?

The board accepts 7–28 V DC at the VIN connector, with absolute maximum rating of 28 V. Exceeding this risks damage to the MPQ6526 IC and on-board regulators. Input must be well-filtered and current-limited to ≤3 A as specified in the quick start guide.

Can the EVQ6526-U-00A drive full-bridge loads directly?

No - the board hosts the MPQ6526, which provides six independent half-bridges only. Full-bridge operation requires external pairing of two half-bridges per motor (e.g., OUT1+OUT2 for one direction, OUT3+OUT4 for reverse), with user-defined PWM and direction logic.

How is fault condition indicated on the evaluation board?

A low logic level on the FAULT pin (accessible via test point) indicates active over-temperature or over-current protection. All six outputs are disabled simultaneously when triggered, and recovery requires cycling EN or power reset per the MPQ6526 datasheet timing requirements.

Does the board include current-sense capability?

No - the EVQ6526-U-00A does not integrate current-sense resistors or amplifiers. Output current must be measured externally using shunt resistors or clamp meters at the OUTx test points or load connections (CN4–CN7).

What is the role of SW2 dip switches S1–S5?

S1–S5 configure LED feedback mapping to individual OUT1–OUT5 states, allowing visual confirmation of half-bridge switching activity during open-loop testing. They do not affect IC functionality or output drive - only indicator behavior.

Is the MPQ6526GU-R3 IC on the board lead-free and RoHS-compliant?

Yes - the MPQ6526GU-R3 is lead-free, halogen-free, and compliant with EU RoHS Directive 2011/65/EU, as confirmed by MPS's official green status documentation and material declarations.