Monolithic Power Systems Inc. EV2676EG-00A

Overview

EV2676EG-00A from Monolithic Power Systems is an evaluation board for the MP2676 Li-ion charger protection IC with integrated high-side P-MOSFET, supporting 5V input, 1.6A current limit, 30V surge tolerance, and battery overvoltage protection at 4.35V - used to validate charge path protection in portable USB-powered devices.

For engineers reviewing the EV2676EG-00A datasheet, EV2676EG-00A pinout, EV2676EG-00A application, or EV2676EG-00A equivalent, this board enables rapid validation of input OVP (1µs response), BOVP, OTP, and gate-driven P-MOSFET control in single-cell Li-ion charging systems before production layout.

Technical Context

The EV2676EG-00A implements a hardware-based protection stack for Li-ion chargers: it monitors VIN against 6V OVP threshold (shutting off output within 1 µs), senses VBAT via external resistor divider to trigger 4.35V BOVP, and enforces 1.6A overcurrent cutoff using internal sensing. The board exposes GATDRV for external charge controller coordination.

It integrates the MP2676 QFN8 (2mm × 2mm, no thermal pad) IC with body-diode reverse polarity protection and supports direct connection to 5V USB sources or higher-voltage adapters up to 30V transient, with shutdown hysteresis between 2.52V (UVLO off) and 2.65V (UVLO on).

Key Specifications

Availability

EV2676EG-00A is available at Aetrix Electronics and suitable for portable power validation, USB-C charger design verification, and Li-ion battery management system prototyping requiring stable component supply and documented reference behavior.

Supply support for EV2676EG-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 MP2676 product line delivers integrated Li-ion protection with monolithic P-MOSFETs and fast-response hardware safety features - designed specifically for space-constrained, cost-sensitive portable electronics requiring robust charge path supervision.

FAQ

What is the purpose of the GATDRV pin on the EV2676EG-00A board?

The GATDRV pin provides direct logic-level control of the integrated P-MOSFET's gate. Connecting it to GND keeps the FET fully on; connecting it to CHRIN disables conduction. This enables synchronization with external charge controllers like PMUs or battery fuel gauges during charge state transitions.

Does the EV2676EG-00A support battery voltage monitoring without external components?

No - VBAT sensing requires an external resistor divider (e.g., 200kΩ–1MΩ) between BAT and VBAT pins to scale battery voltage for internal comparator comparison against the 4.35V BOVP threshold. No onboard scaling resistors are populated per BOM.

Can the board operate directly from a 5V USB source?

Yes - the board starts up at VIN ≥ 2.65V and operates continuously at 5V nominal input. It tolerates up to 30V transients but triggers OVP shutdown if steady-state VIN exceeds 6V, making it compatible with standard USB power while safeguarding against adapter faults.

Is thermal protection implemented on the EV2676EG-00A board?

Yes - the underlying MP2676 IC includes internal temperature monitoring and thermal shutdown (OTP). The evaluation board routes thermal pads per QFN8 package requirements and relies on the IC's built-in sensor; no discrete thermistor or external circuitry is used.

What capacitor values are populated on the EV2676EG-00A board?

The board populates three 2.2µF ceramic capacitors: C1 (2.2µF, 50V, X7R, 1206), and C2/C3 (2.2µF, 16V, X5R, 0805). CIN and COUT positions are marked "NS" (Not Stuffed), allowing users to add custom input/output bulk capacitance per application needs.

How is overcurrent protection triggered and reset?

OCP triggers at 1.6A sensed through the integrated MOSFET's R_DS(on); it latches off the output until VIN drops below UVLO threshold (2.52V) and recovers above 2.65V. No manual reset or external signal is required - recovery is fully automatic upon valid input reapplication.