Monolithic Power Systems Inc. EV6528-R-00A

Overview

EV6528-R-00A from Monolithic Power Systems is an evaluation board for the MP6528GR H-bridge gate driver IC, designed to drive four N-channel MOSFETs in dual half-bridge configuration under 5V–60V input supply. It supports 100% duty cycle operation, programmable over-current protection (OCP) threshold (0.125V–2.4V), and features fault indication output (NFAULT) and thermal shutdown (OTP).

For engineers reviewing the EV6528-R-00A datasheet, EV6528-R-00A pinout, EV6528-R-00A application, or EV6528-R-00A equivalent, this board enables rapid validation of high-voltage motor control topologies, OCP calibration, and gate-drive timing behavior with external MCU/FPGA control signals.

Technical Context

The EV6528-R-00A implements a discrete H-bridge power stage using four TO-263 packaged AM90N08-10B-T1-PE MOSFETs (80V, 90A, 11mΩ @ V_GS=10V), driven by the QFN28 MP6528GR gate driver. Control logic, including enable (NSLEEP), OCP reference (OC_REF), and fault reporting (NFAULT), is routed via CN1 header and test points.

Board-level protection includes Schottky flyback diodes (D1–D4), bulk input capacitance (C1: 1000µF/63V), and five 4.7µF/100V ceramic capacitors (C2–C6) for high-frequency decoupling. VCC is externally supplied at 3.3V or 5V, independent of VIN.

Key Specifications

Availability

EV6528-R-00A is available at Aetrix Electronics and suitable for DC brush motor control, automotive actuator prototyping, and high-voltage power converter development requiring stable component supply and validated gate-drive reference design.

Supply support for EV6528-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 drivers, and gate drivers.

The MP6528GR product line targets high-efficiency, high-voltage H-bridge applications-specifically enabling robust, programmable current protection and 100% duty-cycle capability in brushed DC motor and power stage evaluation environments.

FAQ

What input voltage range does the EV6528-R-00A support?

The EV6528-R-00A accepts 5V to 60V DC on its VIN input, allowing direct evaluation across common industrial and automotive bus voltages. The board's input capacitor (C1: 1000µF/63V) and MOSFET rating (80V V_DSS) provide margin for transient spikes up to ±10V beyond nominal rail.

How is over-current protection configured on this board?

OCP is set via the OC_REF analog input (0.125V–2.4V), which scales linearly with sensed current through 100mΩ shunt resistors (R13–R17). For example, 1.25V at OC_REF configures a 12.5A trip point, verified by the MP6528GR's internal comparator and fault latch behavior.

Does the board support 100% duty cycle operation?

Yes-the MP6528GR gate driver on EV6528-R-00A supports true 100% high-side duty cycle without shoot-through risk, enabled by adaptive dead-time control and independent high-/low-side gate drive outputs. This is confirmed in the MP6528GR datasheet Section 8.3.3 and validated on the board schematic (U1 pins HOA/HOB/LOA/LOB).

What external components are required to operate the board?

Three external supplies are mandatory: VIN (5–60V), VCC (3.3V or 5V), and OC_REF (0.125–2.4V). Additionally, an external controller (MCU/FPGA) must provide PWM signals via CN1 (8-pin header), and SW1 must be set to position 1 (bottom) to enable U1. No additional programming or firmware is needed.

Can the EV6528-R-00A drive inductive loads like solenoids or relays?

Yes-the board's 80V-rated MOSFETs, integrated Schottky freewheeling diodes (D1–D4), and OCP/OTP protection make it suitable for driving inductive actuators. Peak current capability is limited by R13–R17 shunt values and thermal design; continuous current is rated ≤20A per half-bridge based on PCB copper area and ambient temperature.

Is the MP6528GR IC soldered directly onto the board?

Yes-the MP6528GR is permanently mounted in a QFN28 (4mm × 4mm) package (U1) and cannot be replaced without rework. All supporting passives-including gate resistors, bootstrap capacitors, and OC_REF filtering-are populated per the BOM and schematic in the Rev. 1.0 documentation.