Monolithic Power Systems Inc. EVKT-MP2667

Overview

The EVKT-MP2667 from Monolithic Power Systems is an evaluation kit for the MP2667 single-cell Li-ion/Li-polymer battery charger IC, featuring integrated power path management, I²C programmability, 4.35V–5.5V input supply range, and on-board USB-to-I²C interface (EVKT-USBI2C-02) for real-time parameter tuning and status monitoring in portable power system development.

For engineers reviewing the EVKT-MP2667 datasheet, EVKT-MP2667 pinout, EVKT-MP2667 application, or EVKT-MP2667 equivalent, this kit enables rapid validation of charge voltage (4.2V default), fast-charge current (26–1049mA), input current limit (77–993mA), thermal regulation, and OTP configuration workflows - all within a 6.3cm × 6.3cm compact board form factor.

Technical Context

The EVKT-MP2667 comprises two hardware modules: the EV2667-G-00A evaluation board hosting the MP2667 IC with preconfigured charge parameters (4.2V regulation, autonomous charging mode), and the EVKT-USBI2C-02 interface providing USB-to-I²C bridging using Silicon Labs CP2112 firmware. The kit supports Windows XP/7+ with .NET Framework 4.0 and requires ≥22.2MB free disk space for the MP2667 V1.0 GUI software.

Hardware operation relies on three independent power domains: 4.35–5.5V input to VIN, battery voltage (0–4.545V) at VBATT, and system load connected to SYS. All I²C register modifications are volatile and reset on power cycle; OTP programming requires external MPS FAE support and produces factory-programmed MP2667-xxxx variants.

Key Specifications

Availability

EVKT-MP2667 is available at Aetrix Electronics and suitable for portable medical devices, IoT edge sensors, wearable electronics, and handheld industrial tools requiring stable component supply and validated battery charging reference designs.

Supply support for EVKT-MP2667 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 power management ICs for computing, telecom, automotive, and consumer applications, with design centers across Asia and North America.

The MP2667 product line targets space-constrained, single-cell Li-ion systems needing autonomous charging, dynamic power path control, and field-configurable safety thresholds - optimized for battery-powered portable electronics.

FAQ

What components are included in the EVKT-MP2667 kit?

The kit contains one EV2667-G-00A evaluation board, one EVKT-USBI2C-02 USB-to-I²C interface module, one USB cable, and one ribbon cable. The GUI software and documentation are downloadable from the MPS website; no physical media is included.

Can I retain custom I²C register settings after power cycling the board?

No. All I²C register modifications are volatile and reset to factory defaults (e.g., 4.2V charge voltage, 1049mA fast-charge current) upon power-down. Persistent configuration requires OTP programming via MPS FAE support and ordering a custom MP2667-xxxx variant.

What is the role of the EVKT-USBI2C-02 interface in this kit?

The EVKT-USBI2C-02 serves as a USB-to-I²C bridge using a Silicon Labs CP2112 controller. It enables bidirectional communication between the host PC and the MP2667 IC on the EV2667-G-00A board, allowing real-time register access and GUI-driven parameter adjustment without external logic analyzers or debug probes.

Does the EVKT-MP2667 support battery simulation and load testing?

Yes. The board provides dedicated terminals for battery (VBATT/PGND), system load (SYS/GND), and input power (VIN/GND), enabling simultaneous battery charging, system power delivery, and thermal stress testing under variable load conditions up to 1049mA charge current and 4.545V battery voltage.

What software dependencies are required to run the MP2667 GUI?

The MP2667 V1.0 GUI requires Windows XP or later, .NET Framework 4.0, at least 22.2MB of free disk space, and a USB port. Driver installation for EVKT-USBI2C-02 must use the correct architecture-specific installer (x86/x64) and version ≥4.0.0.0 to ensure I²C enumeration.

How do I verify successful connection between the GUI and the EVB?

After launching the GUI, check the status indicators: "USB" and "MP2667 Demo Board" must both display "Connected" in green text. If either shows "Not Connected" in red, verify physical connections (SCL/SDA/GND), reinstall the EVKT-USBI2C-02 driver, and confirm the EVB is powered within 4.35–5.5V.