Monolithic Power Systems Inc. EV2664-G-00A

Overview

EV2664-G-00A from Monolithic Power Systems is an evaluation board for the MP2664 linear battery charger IC, designed to demonstrate single-cell Li-ion/Li-polymer charging with integrated power path management in a 2mm × 2mm QFN-10 package. It supports autonomous CC/CV charging (8–535 mA), input current limiting (85–455 mA), 0.5% battery voltage regulation accuracy (3.6–4.545 V), and I²C-programmable parameters including UVLO, safety timer, and discharge current limit (400–3200 mA), targeting compact portable electronics.

For engineers reviewing the EV2664-G-00A datasheet, EV2664-G-00A pinout, EV2664-G-00A application, or EV2664-G-00A equivalent, this board enables rapid validation of MP2664's power path arbitration, USB/adapter dual-input sourcing, battery-safe disconnection during UVLO, and real-time I²C configuration of charge profiles and fault reporting in wearable and handheld designs.

Technical Context

The EV2664-G-00A implements full system-level validation of the MP2664's dual-path architecture: it dynamically selects between VIN (4.35–5.5 V), battery, or both to sustain SYS output under varying load and source conditions. Its layout integrates all critical passive components-including 1206-format 4.7 µF ceramic capacitors for input/output filtering and 0603 resistors for I²C pull-ups and thermal sensing-optimized for low-noise linear charging.

It provides direct access to the MP2664's 10-pin QFN interface via test points and a dedicated 5-pin header for I²C communication, enabling register-level control of PRE.C/CC/CV stages, termination logic (via TERM_TMR/EN_TERM), NTC-based temperature monitoring, and LDO/BATT FET enable/disable sequencing-all verified using the MP2664 Evaluation Kit software on Windows XP/7 platforms.

Key Specifications

Availability

EV2664-G-00A is available at Aetrix Electronics and suitable for wearable device development, smart handheld power management validation, and fitness accessory battery subsystem qualification requiring stable component supply and documented reference design support.

Supply support for EV2664-G-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, battery management, and motor control solutions.

The MP2664 product line delivers highly integrated linear chargers with power path management for space-constrained, single-cell Li-ion applications-designed to eliminate external MOSFETs and simplify system-level power architecture in ultra-thin consumer electronics.

FAQ

What is the default battery regulation voltage set on EV2664-G-00A?

The board ships with MP2664GG-0000 preconfigured for 4.200 V battery regulation-within the 3.6–4.545 V programmable range-and can be adjusted via I²C using the MP2664 Evaluation Kit software without hardware modification.

Does EV2664-G-00A support USB enumeration and current limiting per USB specification?

Yes-it implements USB-compliant input current limiting (85–455 mA range) and input minimum voltage regulation (VBATT + 400 mV), allowing safe operation from standard USB ports while maintaining system power during charging.

How is battery undervoltage lockout (UVLO) configured on this evaluation board?

UVLO threshold is factory-set to 2.8 V (adjustable from 2.4–3.1 V via I²C register 0x0A, bit[7:5]), and triggers automatic battery disconnect to prevent deep discharge damage to single-cell Li-ion batteries.

Can EV2664-G-00A operate without the USB-to-I²C Communication Kit (EVKT-USBI2C-02)?

No-the board lacks onboard USB interface circuitry; the EVKT-USBI2C-02 is required to establish I²C communication with the host PC and run the MP2664 Evaluation Kit software for parameter programming and status monitoring.

What protections are implemented on EV2664-G-00A beyond basic charge termination?

The board demonstrates MP2664's full protection suite: short-circuit detection on SYS output, thermal foldback via NTC monitoring, programmable safety timer (1.5–12 hours), battery disconnect on UVLO, and discharge current limiting up to 3.2 A-all accessible and configurable through I²C registers.

Is the PCB layout optimized for thermal performance during high-current charging?

Yes-the 2-layer board uses exposed copper pads under the MP2664 QFN-10 package and strategic placement of 4.7 µF 1206 ceramics near VIN/SYS/BATT nodes to minimize impedance and enhance heat dissipation during sustained 535 mA fast charge operation.