Monolithic Power Systems Inc. EV6910A-S-00A

Overview

EV6910A-S-00A from Monolithic Power Systems is a high-efficiency evaluation board for the MP6910A smart synchronous rectifier IC, configured for flyback converter topologies. It integrates a 15mΩ/100V internal power switch, supports 8–24V VDD supply, delivers up to 1.5W power savings in notebook adapters, and operates up to 250kHz switching frequency.

For engineers reviewing the EV6910A-S-00A datasheet, EV6910A-S-00A pinout, EV6910A-S-00A application, or EV6910A-S-00A equivalent, this board enables rapid validation of MP6910A-based synchronous rectification in high-side/low-side flyback designs with <300µA quiescent current in light-load mode.

Technical Context

The EV6910A-S-00A implements a self-powered synchronous rectifier controller that senses VDS across its integrated 100V MOSFET to trigger gate drive with 65mV regulation threshold. It operates without external bias winding by deriving power from the output or auxiliary winding via VDD and VS terminals.

Its dual-mode operation includes normal conduction above light-load thresholds and a low-power mode engaging below ~10% load, reducing quiescent current to under 300µA while maintaining regulation accuracy and fast turn-off response for efficiency compliance with Energy Star 1W standby requirements.

Key Specifications

Availability

EV6910A-S-00A is available at Aetrix Electronics and suitable for flyback converter development, industrial AC/DC power supply qualification, and battery-powered system efficiency validation requiring stable component supply and documented reference design support.

Supply support for EV6910A-S-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, motor drivers, and power management solutions.

The MP6910A product line-evaluated by EV6910A-S-00A-is designed specifically for high-efficiency synchronous rectification in isolated flyback converters targeting ultra-low standby power and compact adapter form factors.

FAQ

What is the primary function of the EV6910A-S-00A evaluation board?

The EV6910A-S-00A is a dedicated evaluation platform for the MP6910A smart synchronous rectifier IC. It provides a fully assembled, tested circuit that demonstrates high-efficiency secondary-side rectification in flyback converters, enabling engineers to validate performance metrics including efficiency gain, thermal behavior, and light-load regulation before integrating into final designs.

Can the EV6910A-S-00A be used with both high-side and low-side synchronous rectification topologies?

Yes. The board's layout and U1 (MP6910A) configuration support both high-side and low-side rectification modes. Pin assignments for VS, VD, and VDD are accessible via test points and solder pads, allowing direct connection to either configuration without hardware modification-verified in MPS Application Note AN-107.

What input voltage range does the EV6910A-S-00A support for VDD powering?

The board accepts 8–24V on the VDD pin, matching the MP6910A's specified supply range. This allows direct connection to an auxiliary winding (typically 12–18V) or regulated output rail (e.g., 12V or 19V), eliminating need for external bias supplies and simplifying flyback system architecture.

How does the 65mV V_DS regulation function improve efficiency?

The 65mV V_DS threshold enables precise MOSFET turn-on and turn-off timing relative to the flyback transformer's secondary voltage waveform. This minimizes body-diode conduction time and eliminates reverse recovery losses, directly contributing to measurable efficiency gains-up to 1.5W saved in a 65W notebook adapter per MPS characterization data.

Is the EV6910A-S-00A RoHS-compliant and lead-free?

Yes. As stated in the official documentation, all components on the EV6910A-S-00A-including the MP6910AGS-Z IC, TDK C2012X7R1H225K capacitor, and Yageo RC0603FR-071KL resistor-are lead-free, halogen-free, and compliant with the EU RoHS directive. MPS confirms green status on its Quality Assurance webpage.