Monolithic Power Systems Inc. EVKT-MP2662

Overview

EVKT-MP2662 from Monolithic Power Systems is an evaluation kit for the MP2662 500mA single-cell Li-ion battery charger with I²C-controlled power path management, 1mA charge termination, and <1μA battery leakage in shipping mode. It enables rapid validation of battery charging, system power prioritization, thermal regulation (120°C), and NTC-based temperature monitoring in space-constrained wearable and smartwatch designs.

For engineers reviewing the EVKT-MP2662 datasheet, EVKT-MP2662 setup guide, EVKT-MP2662 GUI operation, or EVKT-MP2662 board compatibility with MP2662GC-0000, this kit provides full hardware/software integration for USB-to-I²C configuration, real-time register read/write, charge profile verification, and system load transient testing under input-limited conditions.

Technical Context

The EVKT-MP2662 implements a complete reference design for the MP2662 IC, featuring a WLCSP-9 (1.75mm×1.75mm) mounted on the EV2662-C-01A evaluation board, paired with the EVKT-USBI2C-02 interface for host communication. It supports all programmable functions: input current limit (50–500mA), battery regulation voltage (3.6–4.53V), system output voltage (4.2–4.95V), charge termination (1–31mA), and PCB over-temperature protection via NTC configuration.

Hardware includes 4.7μF/10μF input/output ceramic capacitors, 100nF VDD decoupling, and routing optimized for low-inductance IN–SYS–BATT paths. The GUI enables real-time monitoring of INT interrupt status, charge stage transitions (PRE.C/CC/CV), fault flags (OVP/UVLO/thermal), and dynamic adjustment of REG00h–REG09h registers without firmware reflash.

Key Specifications

Availability

EVKT-MP2662 is available at Aetrix Electronics and suitable for wearable device prototyping, smartwatch power architecture validation, and fitness accessory battery management system development requiring stable component supply and full technical support.

Supply support for EVKT-MP2662 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, with expertise in DC/DC converters, battery chargers, and motor drivers for portable and industrial applications.

The MP2662 product line targets ultra-compact, thermally constrained Li-ion systems requiring autonomous charging, seamless power path arbitration, and I²C configurability-designed specifically for wearables, hearables, and medical-grade portable electronics.

FAQ

What components are included in the EVKT-MP2662 kit?

The kit contains one EV2662-C-01A MP2662 evaluation board, one EVKT-USBI2C-02 interface (with USB cable and ribbon cable), and online resources including the MP2662 datasheet, user guide, product brief, and GUI software. All items are shipped as a single package and can be ordered separately if needed.

Does the EVKT-MP2662 support real-time I²C register modification during operation?

Yes. Using the provided GUI and EVKT-USBI2C-02 interface, users can read and write all MP2662 registers-including REG00h (input current limit), REG02h (fast charge current), REG04h (battery voltage), and REG07h (system voltage)-while the charger is actively managing charge and power path states.

Can the EVKT-MP2662 validate battery shipping mode functionality?

Yes. The kit supports full shipping mode testing: setting REG06h bit[5] and REG09h bits[7:6] = 00 triggers 1s deglitch, reducing battery leakage to 350nA at 4.5V. The GUI confirms FET_DIS = 1 status, and the board maintains system isolation while preserving battery health during logistics.

How is thermal protection verified using the EVKT-MP2662?

Thermal regulation (120°C) and shutdown (150°C) are validated by applying controlled load to SYS while monitoring die temperature via NTC simulation. The GUI displays TJ_REG flag activation, automatic charge current reduction, and recovery behavior after cooling-without requiring external thermal chambers.

Is NTC-based temperature monitoring functional out-of-the-box on the EVKT-MP2662?

Yes. The EV2662-C-01A board includes populated NTC resistor divider circuitry (VDD–NTC–GND). Users configure hot/cold thresholds via REG01h and REG05h, and the GUI reports NTC voltage, fault status, and automatic charge suspension when thresholds are exceeded-verified with standard 10kΩ NTC thermistors.

What is the default I²C address of the MP2662 on the EVKT-MP2662 board?

The MP2662 defaults to I²C address 0x6B (7-bit). This is fixed by internal logic and cannot be changed. The GUI automatically detects and communicates at this address; no hardware jumpers or strap resistors are required for basic operation.