Monolithic Power Systems Inc. EVQ1922-V-00A

Overview

EVQ1922-V-00A from Monolithic Power Systems is an AEC-Q100-qualified evaluation board for the MPQ1922 half-bridge pre-driver IC, designed to drive two N-channel MOSFETs in buck converter topologies with up to 100V input voltage, adaptive dead-time control, and integrated current-sense amplifier functionality.

For engineers reviewing the EVQ1922-V-00A datasheet, EVQ1922-V-00A pinout, EVQ1922-V-00A application, or EVQ1922-V-00A equivalent, this board enables rapid validation of high-voltage motor control and DC-DC power stages using the MPQ1922GVE-AEC1 gate driver under real-world thermal and switching conditions.

Technical Context

The EVQ1922-V-00A implements a functional reference design for the MPQ1922, supporting independent INH/INL logic inputs, adjustable slew rate via external SR resistor, and configurable current-sense gain via CSG resistor. It operates with VIN from 5V to 100V and VG from 5V to 15V.

Board-level features include adaptive shoot-through prevention through gate-voltage monitoring, 3.3V/5V logic compatibility (VCC), dual 100V-rated power MOSFETs (AMIB075N15N3-T1-PF), and on-board TVS protection (SMCJ100A) - all configured for buck converter operation per the Quick Start Guide.

Key Specifications

Availability

EVQ1922-V-00A is available at Aetrix Electronics and suitable for automotive ADAS power modules, industrial servo drives, and 48V–100V DC-DC converter development requiring stable component supply and AEC-Q100-compliant validation hardware.

Supply support for EVQ1922-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 for computing, automotive, industrial, and consumer applications, with global design and support infrastructure.

The MPQ1922 product line delivers robust half-bridge pre-driver solutions targeting AEC-Q100-compliant motor control and high-efficiency DC-DC conversion, emphasizing shoot-through immunity, wide input voltage range, and integrated sensing for system-level fault detection.

FAQ

What is the primary function of the EVQ1922-V-00A evaluation board?

The EVQ1922-V-00A is a fully assembled, tested reference platform for evaluating the MPQ1922 half-bridge pre-driver IC. It enables functional verification of gate drive timing, adaptive dead-time behavior, current-sense accuracy, and thermal performance in buck converter configurations with up to 100V input voltage and AEC-Q100-grade reliability requirements.

Does the board support both 3.3V and 5V logic interfaces?

Yes - the board accepts VCC at either 3.3V or 5V, matching common microcontroller and FPGA I/O voltage levels. The INH and INL inputs are CMOS-compatible and operate correctly across both logic thresholds, as confirmed in the Quick Start Guide and schematic documentation.

How is shoot-through prevented on this evaluation board?

Shoot-through is prevented by the MPQ1922's internal adaptive dead-time circuitry, which monitors gate driver output voltages to ensure full discharge of one MOSFET before enabling the other. An additional fixed dead time can be added externally by delaying the INL signal relative to INH, as specified in the application notes.

Can the EVQ1922-V-00A be used for motor control applications beyond buck converters?

Yes - while configured and validated for buck topology, the board's core MPQ1922 functionality supports any half-bridge power stage including BLDC motor inverters and H-bridge drivers. Users must modify external components (e.g., bootstrap network, gate resistors, layout routing) to match target motor phase voltage and current requirements.

What power MOSFETs are installed on the board?

The board uses two AMIB075N15N3-T1-PF N-channel MOSFETs: 150V rated, 90A continuous drain current, 12mΩ R_DS(on), TO-263 package. These devices are selected to handle the full 100V input range with margin and support high-current transient loads typical in automotive and industrial power stages.

Is the board RoHS and REACH compliant?

Yes - all bill-of-materials components listed in the official MPS documentation (Rev. 1.0, October 2021) meet RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006 requirements, consistent with MPS's corporate compliance policy and manufacturing standards.