Monolithic Power Systems Inc. EV6002DN-00A

Overview

EV6002DN-00A from Monolithic Power Systems is an evaluation board for the MP6002 monolithic flyback/forward DC-DC converter IC, integrating a 150V power switch and delivering up to 30W output (12V/2.5A) across 36–75V input. It supports cycle-skipping for zero-load regulation and features over-current, short-circuit, over-voltage, and thermal shutdown protection. Designed for telecom and PoE-powered equipment validation.

For engineers reviewing the EV6002DN-00A datasheet, EV6002DN-00A pinout, EV6002DN-00A application, or EV6002DN-00A equivalent, this board enables rapid functional verification of the MP6002DN's 275kHz switching operation, 8-pin SOIC-E package integration, and auxiliary winding-based feedback architecture under real-world line/load transients.

Technical Context

The EV6002DN-00A implements a transformer-coupled flyback topology with primary-side regulation via optocoupler (PC357NT) and adjustable shunt regulator (ZR431LF01), eliminating secondary-side error amplifiers. Input UVLO and over-voltage protection are implemented using discrete resistor dividers (R2, R4–R6) feeding the MP6002's VCC and OVP pins.

It validates the MP6002's internal soft-start, auto-retry fault recovery, and duty-cycle limiting with line feed-forward-key for stable operation across 36–75V telecom input ranges. The board uses Wurth 750340543 flyback transformer with 1:0.368:0.235 turns ratio for main and auxiliary windings, enabling self-biasing and isolated feedback.

Key Specifications

Availability

EV6002DN-00A is available at Aetrix Electronics and suitable for telecom power supply design, Power over Ethernet (PoE) interface development, and distributed DC-DC conversion validation requiring stable component supply and documented reference performance.

Supply support for EV6002DN-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, LED drivers, and motor control solutions.

The MP6002 product line targets isolated offline and intermediate bus converters for telecom and industrial applications, emphasizing integrated protection, wide input range, and transformer-coupled regulation without secondary-side controllers.

FAQ

What input voltage range does the EV6002DN-00A support?

The board operates from 36 V to 75 V DC input, aligned with standard telecom -48 V systems including worst-case ripple and transient margins. Input UVLO triggers below ~33 V, and over-voltage protection activates above ~80 V, both implemented via external resistor networks per MP6002 specifications.

How is output voltage regulated on this evaluation board?

Output voltage is regulated using primary-side sensing with optocoupler feedback (PC357NT) and a precision shunt regulator (ZR431LF01) on the secondary side. The ZR431 sets 12 V via resistive divider (R16/R17), and the optocoupler transmits error signal to the MP6002's FB pin for duty-cycle adjustment.

Can the EV6002DN-00A be used for forward converter evaluation?

Yes-the MP6002 supports both flyback and forward topologies. The board's transformer (Wurth 750340543) and layout accommodate forward mode with minor component changes per MPS AN-107 application note, including reconfiguring the synchronous rectifier path and adjusting timing components.

What is the role of the EN pin on the EV6002DN-00A?

The EN pin provides digital enable/disable control of the MP6002. Driving it to 1.2–2.7 V enables regulation; pulling it below 0.7 V disables switching and places the IC in ultra-low quiescent current state. This allows precise sequencing and standby control in multi-rail systems.

Does the board include thermal monitoring or reporting?

No dedicated thermal sensor or reporting circuitry is present. However, the MP6002 integrates thermal shutdown that disables switching when junction temperature exceeds ~150°C. Board-level thermal performance is validated via IR imaging in the reference design report, showing <45°C rise at full load with natural convection.

Is the transformer on the board customizable for different output voltages?

The Wurth 750340543 transformer has fixed turns ratios (primary:main:auxiliary = 1:0.368:0.235). To change output voltage, users must replace the secondary-side resistor divider (R16/R17) and verify ZR431 bias current compliance; transformer substitution requires matching inductance, isolation rating, and leakage inductance specs.