Monolithic Power Systems Inc. EVQ6523-R-00A

Overview

EVQ6523-R-00A from Monolithic Power Systems is a fully assembled evaluation board for the MPQ6523 triple half-bridge motor driver IC, supporting 7V–28V input, 0.9A per channel output, serial interface control, and integrated diagnostics including thermal shutdown and short-circuit protection. It enables rapid validation of DC motor drive configurations in automotive body electronics and industrial actuators.

For engineers reviewing the EVQ6523-R-00A datasheet, EVQ6523-R-00A pinout, EVQ6523-R-00A application, or EVQ6523-R-00A equivalent, this board provides accessible test points (VIN, VS, OUT1–OUT3, FAULT, DI/CLK/CS/DO), configurable power rails (3.3V/5V via SW1), and load interface headers (CN3–CN5) for immediate functional prototyping without custom PCB design.

Technical Context

The EVQ6523-R-00A implements the MPQ6523 QFN4×4-24 IC with three independent half-bridge outputs, each rated for 0.9A continuous current and 1.1Ω typical (HS+LS) R_DS(on) at 25°C. Control is delivered via SPI-compatible serial interface with dedicated CS, CLK, DI, and DO signals routed to CN1.

Board-level support includes dual LDOs (MPQ2013AGQ-5-Z and MPQ2013AGQ-33-Z) for VCC generation, discrete flyback diodes (D2–D5: 1N4148W), bulk and ceramic filtering (C2: 330μF/35V electrolytic; C1/C5–C7: 100nF/50V X7R), and fault monitoring via open-drain FAULT pin tied to LED indicators.

Key Specifications

Availability

EVQ6523-R-00A is available at Aetrix Electronics and suitable for automotive body control modules, industrial valve actuation systems, and robotic joint driver validation requiring stable component supply and fast-turn evaluation capability.

Supply support for EVQ6523-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 battery management solutions.

The MPQ6523 product line delivers integrated triple half-bridge drivers for space-constrained, thermally demanding applications such as automotive HVAC actuators and programmable industrial I/O modules.

FAQ

What power supply requirements does the EVQ6523-R-00A board need?

The board requires a 7V–28V DC input at VIN with ≥3A current capability. On-board LDOs generate regulated 5V and 3.3V for logic; SW1 selects which rail powers VCC. No external regulators are needed for basic operation.

How do I configure the MPQ6523 for full-bridge motor control?

Use two half-bridges per motor (e.g., OUT1/OUT2 for one direction, OUT2/OUT3 for reverse). SW3's S1/S2 switches route OUTx signals to LEDs for visual rotation indication. Full-bridge timing and dead-time must be managed by host MCU firmware.

Can I monitor fault conditions without an oscilloscope?

Yes. The FAULT pin drives LED4 low during over-temperature or short-circuit events. This open-drain signal is also accessible at test point "FAULT" for logic-level monitoring or MCU interrupt input.

Which connectors support external load attachment?

CN3, CN4, and CN5 are 2-pin screw terminals (Wurth 691216510002) accepting 22–28 AWG wire. Each connects directly to one half-bridge output (OUT1–OUT3) and GND, enabling quick motor or solenoid hookup.

Is the board RoHS-compliant and lead-free?

Yes. All components-including MPQ6523GQ-R3, MPQ2013AGQ-5-Z, and passive parts-meet RoHS Directive requirements. MPS confirms halogen-free and lead-free status across the full BOM per its Quality Assurance documentation.

Does the board include current-sense capability?

No. The EVQ6523-R-00A does not integrate current-sense resistors or amplifier circuitry. Output current must be measured externally using shunt resistors or clamp meters at the OUTx/GND nodes.