Monolithic Power Systems Inc. EV6005-K-00B

Overview

EV6005-K-00B from Monolithic Power Systems is an evaluation board designed to demonstrate the MP6005 high-efficiency secondary-side regulated (SSR) active-clamped forward controller, supporting 36–57 V input, 5 V/4.8 A output, and fixed 250 kHz switching in MSOP10 package. It enables rapid validation of isolated power designs for security cameras, video telephones, wireless APs, and POS systems.

For engineers reviewing the EV6005-K-00B datasheet, EV6005-K-00B pinout, EV6005-K-00B application, or EV6005-K-00B equivalent, this board provides verified test data including efficiency vs. load current (up to 95% at 48 V_IN), line/load regulation, EMI performance per EN55022 Class B, and startup/shutdown transient waveforms under real operating conditions.

Technical Context

The EV6005-K-00B implements the MP6005 IC in a fully assembled, tested SSR forward topology with auxiliary winding-derived V_CC, dual gate drivers (2 A GATE, 0.8 A SYNC), and hiccup-mode protection for OVP, OLP, SCP, and thermal shutdown. It operates across 36–57 V input while maintaining tight 5 V ±0.3% output regulation.

Board-level features include frequency dithering for EMI reduction, 160 mV current-sense threshold, and support for both active-clamped forward and SSR flyback configurations. The transformer (Coilcraft FCT1-50M22SL) and MOSFETs (SI7450, FDMS86520, SiR462) are selected to validate high-current, low-loss operation up to 4.8 A continuous load.

Key Specifications

Availability

EV6005-K-00B is available at Aetrix Electronics and suitable for security camera power supplies, video telephone isolated converters, wireless access point DC-DC stages, and industrial POS system auxiliary rails requiring stable component supply and fast prototyping turnaround.

Supply support for EV6005-K-00B 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 over two decades of leadership in DC-DC conversion, motor drivers, and LED lighting controllers.

The EV6005-K-00B belongs to MPS's evaluation board product line, developed specifically to accelerate adoption of their MP6005 SSR forward controller in cost-sensitive, space-constrained isolated power applications demanding >90% efficiency and robust EMI performance.

FAQ

What is the primary function of the EV6005-K-00B evaluation board?

The EV6005-K-00B is a fully assembled demonstration platform for the MP6005 secondary-side regulated active-clamped forward controller. It validates 5 V/4.8 A output performance across 36–57 V input, delivers measured efficiency up to 95%, and supports EN55022 Class B EMI compliance through integrated frequency dithering and optimized PCB layout.

Can the EV6005-K-00B be used for primary-side regulation (PSR) flyback designs?

No - the EV6005-K-00B is configured exclusively for secondary-side regulation (SSR) active-clamped forward operation using the MP6005's SYNC driver. While the MP6005 IC itself supports PSR flyback mode via third-winding sensing, this board's schematic, transformer turns ratio, and feedback loop are fixed for SSR forward topology and cannot be reconfigured for PSR.

What are the key components on the EV6005-K-00B that enable its 4.8 A output capability?

The board achieves 4.8 A continuous output using the SI7450 (80 mΩ, 200 V) primary-side MOSFET, FDMS86520 (7.4 mΩ, 60 V) and SiR462 (7.9 mΩ, 30 V) synchronous rectifiers, Coilcraft FCT1-50M22SL forward transformer, and 470 μF/VOGND output capacitor. Thermal design includes copper-pour ground planes and low-R_DS(on) devices to limit junction rise under full load.

Does the EV6005-K-00B include built-in EMI filtering components?

Yes - the board integrates multiple EMI mitigation elements: 600 Ω ferrite beads (L1B/L1C), 1000 pF/2000 V Y-capacitors (C14A–C14C), 3.3 nF snubber capacitors (C8/C11), and a dither-enabled MP6005 controller. Conducted and radiated emission test results per EN55022 Class B are provided in the official Rev. 1.1 documentation.

How is output voltage set and trimmed on the EV6005-K-00B?

Output voltage is set to 5 V using the TLV431 adjustable shunt regulator (U3) in conjunction with resistor divider R16/R17 (100 kΩ / 20 kΩ). This configuration yields V_OUT = 1.24 V × (1 + 100k/20k) = 5.0 V. No trim pot is included; adjustment requires replacing R16 or R17 with precision resistors.

Is the EV6005-K-00B RoHS-compliant and halogen-free?

Yes - all components on the EV6005-K-00B meet MPS's green policy: lead-free, halogen-free, and compliant with the EU RoHS directive. This includes the MP6005GK IC (MSOP10), passive components (e.g., Murata GRM series capacitors), and discrete semiconductors (e.g., BAV70, TLV431).