Monolithic Power Systems Inc. EV2660-C-01A

Overview

EV2660-C-01A from Monolithic Power Systems is an evaluation board for the MP2660 linear battery charger IC, enabling full configuration of input voltage/current limits, charge current (8–535 mA), battery regulation voltage (3.60–4.545 V), and discharge current limit (100–1600 mA) via I²C interface. It supports autonomous single-cell Li-ion/Li-polymer charging with power path management in space-constrained wearable and smart handheld devices.

For engineers reviewing the EV2660-C-01A datasheet, EV2660-C-01A pinout, EV2660-C-01A application, or EV2660-C-01A equivalent, this board provides validated hardware reference, register-level control access, real-time status monitoring, and configurable safety features including UVLO, thermal monitoring, and programmable charge termination.

Technical Context

The EV2660-C-01A implements a complete system-level test platform for the MP2660GC-xxxx IC, featuring WCSP 1.55 mm × 1.55 mm packaging and integrated power path management that enables simultaneous system powering and battery charging. It includes dedicated I²C SCL/SDA pins, NTC thermistor interface, INT fault reporting, and dual-role VIN/BATT/SYS connections.

Board-level design incorporates five 1206 ceramic capacitors (47 µF each), two 0805 2.2 µF units, one 0603 1 µF unit, and discrete 100 kΩ/10 kΩ resistors for biasing and thermal sensing. USB Micro-B connector and push-button SW1 support host communication and manual battery FET control.

Key Specifications

Availability

EV2660-C-01A is available at Aetrix Electronics and suitable for wearable device prototyping, smart watch firmware validation, and fitness accessory power architecture development requiring stable component supply and rapid functional verification.

Supply support for EV2660-C-01A 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 MP2660 product line delivers highly integrated linear chargers with power path management for ultra-compact portable electronics, targeting applications where board area, thermal performance, and I²C configurability are critical.

FAQ

What is the default battery regulation voltage on EV2660-C-01A?

The default battery regulation voltage is 4.200 V, within the programmable range of 3.600–4.545 V. This setting aligns with standard single-cell Li-ion chemistry and can be modified via I²C register write using the MP2660 evaluation software. The value is stored in the VBATT_REG register and persists across power cycles when configured.

Does EV2660-C-01A support USB enumeration or only USB power delivery?

EV2660-C-01A does not perform USB enumeration; it uses the Micro-B connector solely for 5 V power input and I²C communication via an external USB-to-I²C adapter kit. The board lacks USB data-line transceivers or VID/PID descriptors, and operates as a peripheral device controlled by host PC software-not as a USB-compliant device.

How is battery temperature monitored on this evaluation board?

Temperature monitoring is implemented via an NTC thermistor (RT1/RT2) connected to the MP2660's THERM pin. The board routes the thermistor to the IC's internal ADC input, enabling programmable hot/cold thresholds and automatic charge suspension if out-of-range conditions occur. No external ADC or microcontroller is required for basic thermal protection.

Can EV2660-C-01A operate without I²C configuration?

Yes - the board powers up with factory-default register settings: 4.200 V battery voltage, 246 mA charge current, 455 mA input current limit, and 4.60 V VIN regulation. All safety functions (UVLO, timer, thermal cutoff) remain active without I²C connection, enabling immediate functional testing using only DC input and battery load.

What is the role of SW1 on the EV2660-C-01A board?

SW1 is a momentary push button connected to the MP2660's INT pin. Pressing it pulls INT low to manually enable the battery FET when disabled by DSG OFF mode or fault lockout. It serves as a hardware override for battery disconnection states, allowing recovery without cycling power or reprogramming registers.

Is the EV2660-C-01A RoHS compliant and lead-free?

Yes - all components on EV2660-C-01A, including the MP2660GC-xxxx IC, ceramic capacitors, resistors, and connectors, are lead-free, halogen-free, and fully compliant with the EU RoHS directive. MPS confirms green status for this part family on its official Quality Assurance webpage.