Monolithic Power Systems Inc. EV4088-N-00A

Overview

EV4088-N-00A from Monolithic Power Systems is an evaluation board designed to demonstrate the MP4088GN - a high-line, TRIAC-dimmable, constant-current LED driver IC with integrated 500V MOSFET and proprietary hybrid dimming control. It delivers 60V/135mA (8.1W) output from 198–265VAC/50Hz input, achieves >82% efficiency, >0.76 power factor, and <50.3% THD, and is optimized for GU10 bulb form factor in residential lighting.

For engineers reviewing the EV4088-N-00A datasheet, EV4088-N-00A pinout, EV4088-N-00A application, or EV4088-N-00A equivalent, this board enables rapid validation of dimmable LED driver performance across 36+ commercial leading/trailing-edge dimmers, surge immunity (IEC61547), conducted EMI (EN55015), and harmonic compliance (IEC61000-3-2 Class C).

Technical Context

The EV4088-N-00A implements a single-stage buck-boost topology using the MP4088GN controller, eliminating isolation and minimizing BOM count. It relies on a single EE13 inductor (2.1mH ±5%) and passive damping (R1/R2) to stabilize TRIAC triggering across wide dimmer compatibility.

Key circuit functions include internal HV startup from the HV pin, programmable over-voltage protection via R8/R9 divider, LED current sensing through R10 (1Ω), and thermal foldback with auto-restart hysteresis. The board integrates a π-filter (L1/L2/C1/C2), RCD snubber (R5/C3/D2), and bleeder network (R7/C4) to meet IEC61547 surge and EN55015 EMI requirements.

Key Specifications

Availability

EV4088-N-00A is available at Aetrix Electronics and suitable for residential LED bulb development, industrial retrofit lamp design, and commercial downlight qualification requiring stable component supply, repeatable dimming validation, and regulatory pre-compliance testing.

Supply support for EV4088-N-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 a focus on energy-efficient power conversion and LED lighting solutions.

The MP4088 product line targets cost-sensitive, non-isolated, TRIAC-dimmable LED drivers for compact AC-powered lamps - prioritizing BOM reduction, thermal robustness, and universal dimmer interoperability.

FAQ

What is the primary function of the EV4088-N-00A evaluation board?

The EV4088-N-00A is a fully assembled, tested reference design that demonstrates the MP4088GN IC's capability as a high-power-factor, TRIAC-dimmable LED driver. It provides a turnkey platform for validating dimming performance, efficiency, thermal behavior, and regulatory compliance before custom PCB design.

Can the EV4088-N-00A drive different LED loads?

Yes - output current is set by the 1Ω sense resistor (R10); replacing R10 adjusts LED current. Output voltage is determined by the LED string forward voltage; the board supports up to ~65V output with stable regulation, verified with 19-LED strings at 60V/135mA.

Does the board include safety isolation?

No - the EV4088-N-00A implements a non-isolated buck-boost topology per the MP4088GN architecture. It is intended for use inside double-insulated luminaires (e.g., GU10 bulbs). All testing must be performed with an isolation transformer due to direct AC mains connection.

What dimming topologies does it support?

The board is validated for both leading-edge (TRIAC) and trailing-edge (electronic) dimmers, with documented operation across 36 distinct commercial models including Busch, Berker, JUNG, SIEMENS, TCL, and Grundtyp. Dimming range spans 0–100% without visible flicker.

How is overvoltage protection configured?

OVP is set by the resistor divider R8 (29.4kΩ) and R9 (1MΩ) on the OVF pin, establishing a threshold of approximately 65V at the LED+ node. When exceeded, the MP4088GN disables switching and enters hiccup mode until fault clears.

What are the physical dimensions and mounting features?

The board measures 35mm × 22.5mm × 17.5mm (L×W×H) and fits within standard GU10 bulb housings. It features four 1.0mm male pins (L, N, LED+, LED−) for quick connection and no soldering - enabling plug-and-play integration into prototype fixtures.