Monolithic Power Systems Inc. EV2615C-Q-00A

Overview

EV2615C-Q-00A from Monolithic Power Systems is a fully assembled evaluation board for the MP2615C 1- or 2-cell Li-ion/Li-polymer switching battery charger IC, supporting 4.75–18V input, up to 2A charge current, ±0.75% full-battery voltage accuracy, and QFN-16 (3mm×3mm) footprint validation. It enables rapid prototyping of portable power systems requiring configurable cell count (1/2), terminal voltage (4.1V/4.2V per cell), and safety timer.

For engineers reviewing the EV2615C-Q-00A datasheet, EV2615C-Q-00A pinout, EV2615C-Q-00A application, or EV2615C-Q-00A equivalent, this board delivers verified layout, component BOM, thermal performance data, and jumper-configurable operation modes - critical for validating MP2615C integration in space-constrained battery-powered designs before production.

Technical Context

The EV2615C-Q-00A implements the MP2615C's constant-off-time (COT) control architecture, enabling up to 99% duty cycle during high-V_BATT/low-V_IN conditions to sustain charge current. It validates dual-loop CC/CV regulation with internal loop compensation and integrated 20V/2A MOSFETs.

Board-level features include jumper-selectable CELL (JP1) and SEL (JP2) logic for 1-/2-cell mode and 4.1V/4.2V/cell termination, EN control via JP3, NTC-based temperature monitoring at pin 12, and CHGOK/ACOK status outputs - all mapped to accessible test points and LEDs.

Key Specifications

Availability

EV2615C-Q-00A is available at Aetrix Electronics and suitable for smartphone power validation, portable media player battery management, and handheld medical device charging development requiring stable component supply and pre-verified thermal layout.

Supply support for EV2615C-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-performance power management ICs, with design centers across Asia and North America and global distribution through authorized partners.

The MP2615C product line targets high-efficiency, space-constrained Li-ion charging applications in consumer and portable electronics, integrating power switches, protection, and precision regulation in a single QFN package.

FAQ

What battery chemistries does the EV2615C-Q-00A support?

The board supports Li-ion and Li-polymer batteries exclusively, validated for 1-cell (4.2V or 4.1V max) and 2-cell (8.4V or 8.2V max) configurations. It does not support NiMH, lead-acid, or LiFePO₄ due to fixed CV thresholds and absence of chemistry-specific charge profiles.

How is charge current configured on this evaluation board?

Charge current is set by the 25mΩ sense resistor RS1, yielding 2A per the formula I_CHG = 50mV / R_S1. The board includes zero-ohm jumpers (R3–R7) to support alternative R_S values; changing RS1 directly alters both constant-current and trickle-charge levels proportionally.

Can the EV2615C-Q-00A operate without an NTC thermistor?

Yes - the NTC input (pin 12) is optional. If left unconnected or pulled to VCC/GND, the MP2615C disables temperature monitoring but continues CC/CV charging. Board silkscreen marks NTC location and provides test point access for external thermistor integration.

What do the CHGOK and ACOK LED indicators signify?

Green LED1 (CHGOK) illuminates when charging is active and battery voltage is below termination threshold. Red LED2 (ACOK) lights when valid input power is present and MP2615C is enabled. Both signals are driven directly by U1 pins 10 and 11, matching datasheet logic levels and timing.

Is thermal performance data available for this board?

Yes - the board uses 2oz copper layers, thermal vias under U1's exposed pad, and a 6.2μH shielded inductor (Wurth 7440660062) rated for 4.3A DC. At 2A charge current and 12V input, measured junction temperature rise is ≤22°C above ambient under free-air conditions, per Rev. 1.0 test report.

Does the board support preconditioning of deeply depleted batteries?

Yes - the MP2615C implements automatic trickle-charge mode (10% of I_CHG) when battery voltage falls below 2.8V, and the EV2615C-Q-00A routes all necessary bias paths and sense elements to enable this function without modification.