Monolithic Power Systems Inc. EV6522-U-00A

Overview

EV6522-U-00A from Monolithic Power Systems is an evaluation board for the MP6522 H-bridge motor driver IC, supporting 5.4–35V input voltage, delivering up to 2A continuous and 3.2A peak output current, with integrated current sense, fault indication, and OCP/OVP/OTP protection - used for rapid prototyping of brushed DC motor control in industrial actuators.

For engineers reviewing the EV6522-U-00A datasheet, EV6522-U-00A pinout, EV6522-U-00A application, or EV6522-U-00A equivalent, this board enables functional validation of MP6522-based H-bridge designs, logic-level compatibility testing (3.3V/5V), and real-time current-sense calibration via adjustable resistor RV1.

Technical Context

The EV6522-U-00A implements the MP6522 QFN24 (5×5 mm) H-bridge driver in a fully assembled, tested layout with dual power domains: high-side VIN (5.4–35 V) and logic VCC (3.3 V or 5 V). It exposes all critical signals - IN1/IN2, OUT1/OUT2, VISEN, NFAULT, CPA/CPB - via test points and CN1 header.

Control modes include manual toggle via SW1 (4-bit DIP switch) and MCU-driven operation via 7-pin CN1, supporting forward/reverse/coast/brake states per truth table. Internal current sensing scales output voltage via RV1 (10 kΩ trimmer), enabling direct oscilloscope monitoring of load current magnitude.

Key Specifications

Availability

EV6522-U-00A is available at Aetrix Electronics and suitable for brushed DC motor control, solenoid actuation, and industrial motion prototyping requiring stable component supply, quick-turn evaluation, and production-ready reference design validation.

Supply support for EV6522-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 core expertise in DC/DC conversion, motor control, and battery management.

The EV6522-U-00A belongs to MPS's motor driver evaluation platform family, designed specifically to accelerate development of robust, thermally efficient H-bridge systems for industrial automation and precision motion control.

FAQ

What input voltage range does the EV6522-U-00A support?

The board accepts 5.4 V to 35 V DC on the VIN terminal, matching the MP6522 IC's operational input range. This allows direct connection to common industrial supplies (12 V, 24 V) and higher-voltage battery stacks without external regulation.

How is motor direction controlled on this evaluation board?

Motor direction is controlled via two logic inputs (IN1 and IN2) using either the onboard 4-bit DIP switch SW1 or external MCU signals through CN1. The truth table defines forward (IN1=1, IN2=0), reverse (IN1=0, IN2=1), brake (IN1=IN2=1), and coast (IN1=IN2=0) states.

Does the board provide current measurement capability?

Yes - the VISEN pin outputs an analog voltage proportional to motor current, scaled by the onboard 10 kΩ adjustable resistor RV1. Users can calibrate the gain (e.g., 0.1 V/A) and read the signal directly with a multimeter or microcontroller ADC.

What protection features are implemented on the EV6522-U-00A?

The board inherits MP6522's integrated protections: overcurrent (OCP), overvoltage (OVP), and overtemperature (OTP). Fault conditions assert the open-drain NFAULT signal, which can be monitored by host controllers for system-level safety response.

Can I use 3.3 V logic signals with this evaluation board?

Yes - the board supports both 3.3 V and 5 V logic levels. When using SW1, an external 3.3 V or 5 V supply must be connected to the VCC header to serve as pull-up; when using CN1, the host MCU's logic voltage directly drives IN1/IN2.

Is the MP6522GU IC soldered to the board?

Yes - the MP6522GU (QFN24, 5×5 mm) is factory-soldered and fully populated on the EV6522-U-00A board. All passive components, including input/output capacitors, current-sense resistors, and protection diodes, are pre-installed and validated per Rev. 1.0 schematic.