Monolithic Power Systems Inc. EV2696A-Q-00A

Overview

EV2696A-Q-00A from Monolithic Power Systems is an evaluation board for the MP2696A single-cell Li-ion power bank controller IC, implementing full charge management (up to 3.6A), boost conversion (5V SYS output), and I²C-configurable system power path control. It supports USB BC1.2 detection, cable compensation, JEITA thermal profiling, and operates from 4–6V input with 16V surge tolerance.

For engineers reviewing the EV2696A-Q-00A datasheet, EV2696A-Q-00A pinout, EV2696A-Q-00A application, or EV2696A-Q-00A equivalent, this board enables rapid validation of fast-charge power bank designs requiring programmable charge voltage (3.6–4.45V), output current limiting (2.1–3.6A), and real-time battery current monitoring via analog IB pin.

Technical Context

The EV2696A-Q-00A implements a complete reference design around the MP2696AGQ-0000 QFN3×3 IC, integrating charge FETs, boost power stage, and MCU-based system supervision (ABOV MC96F1206UBN). It supports three operational modes-charge, boost, and sleep-with automatic mode transitions based on input presence, load detection, and timer events.

Key subsystems include a 1μH/10A power inductor (Wurth 74437349010), 22μF output capacitor (TDK C2012X7S1A226M), USB-A and micro-USB physical interfaces, NTC thermistor circuitry, and I²C-accessible registers for real-time configuration of charge voltage, current limits, and boost output voltage (5.05–5.25V).

Key Specifications

Availability

EV2696A-Q-00A is available at Aetrix Electronics and suitable for power bank development, USB-C accessory validation, and portable medical device battery subsystem qualification requiring stable component supply and documented reference design fidelity.

Supply support for EV2696A-Q-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-efficiency analog and mixed-signal power solutions, with emphasis on integration, thermal performance, and system-level power management.

The EV2696A-Q-00A belongs to MPS's evaluation board product line, designed specifically to accelerate adoption of the MP2696A battery management IC in consumer-grade single-cell power banks and portable USB-powered systems.

FAQ

What is the primary function of the EV2696A-Q-00A evaluation board?

The EV2696A-Q-00A is a fully assembled reference design board that demonstrates the MP2696A IC's capabilities as a single-cell Li-ion power bank controller. It implements bidirectional power path management-charging from USB input and boosting to 5 V SYS output-with I²C configurability, safety monitoring, and thermal regulation.

Does the board support USB Battery Charging (BC) 1.2 detection?

Yes. The EV2696A-Q-00A implements BC1.2 and non-standard adapter detection via its DP/DM interface, enabling automatic identification of DCP, CDP, and SDP sources to optimize input current limits without host intervention.

How is battery current measured on this board?

Battery current is monitored through the MP2696A's analog IB pin, which outputs a voltage proportional to sensed current (typically 100 mV/A). This signal is routed to test point TP13 and can be sampled by an external MCU or oscilloscope for real-time charge/discharge profiling.

Can the boost output voltage be adjusted, and how?

Yes. The SYS output voltage is programmable from 5.05 V to 5.25 V via I²C register writes to the MP2696A's VOUT_BOOST setting. The board includes USB cable compensation logic that dynamically adjusts output voltage based on load current to maintain 5 V at the load end.

What MCU is used for system supervision, and is firmware accessible?

The board integrates an ABOV MC96F1206UBN QFN20 MCU for status LED control, button wake-up, and SYS plug-in/no-load detection. MPS provides reference firmware upon request, but the MCU is not required for basic charge/boost operation-the MP2696A functions autonomously.

Is thermal management implemented, and how is it verified?

Yes. The board includes an NTC thermistor circuit (R15/R16, C12) connected to the MP2696A's VRNTC pin, enabling full JEITA profile compliance. Thermal shutdown triggers at ≥125°C junction temperature, and board layout uses internal copper planes and thermal vias under U1 (MP2696A) and L1 for dissipation.

What are the supported operating modes, and how are they triggered?

The board supports charge mode (VIN present, no SYS load), boost mode (SYS load detected or button press), and sleep mode (no SYS load for >32 s). Mode transitions are handled automatically by the MP2696A's internal state machine, with optional override via I²C commands.