Monolithic Power Systems Inc. EV2606DQ-00A

Overview

EV2606DQ-00A from Monolithic Power Systems is an evaluation board for the MP2606DQ linear single-cell Li-Ion battery charger IC, supporting 5V input and delivering up to 800mA constant-current/4.2V constant-voltage charging with 28V surge tolerance, thermal protection, and reverse current blocking - used to validate portable power management in compact consumer electronics.

For engineers reviewing the EV2606DQ-00A datasheet, EV2606DQ-00A pinout, EV2606DQ-00A application, or EV2606DQ-00A equivalent, this board enables rapid validation of CC/CV charge profiles, AC adapter power-good signaling, charge status indication, and programmable termination thresholds under real-world input surge and thermal conditions.

Technical Context

The EV2606DQ-00A implements a fully assembled reference design for the MP2606DQ QFN10 charger IC, integrating input surge protection (28V tolerant), dual LED status indicators (red = input present, green = charging), and jumper-selectable charge currents (200–1032mA). It supports USB/adapter input and provides dedicated pins for battery full low/high threshold setting via resistive dividers.

Board-level features include pre-populated ceramic capacitors (0.1µF to 4.7µF, X7R, 1206/1210), precision 1% feedback resistors (R3–R7), and configurable JP1–JP4 jumpers for ICHG selection and LED power sourcing - enabling direct correlation between schematic, BOM, and measured charge curves.

Key Specifications

Availability

EV2606DQ-00A is available at Aetrix Electronics and suitable for cell phone power validation, MP3 player battery subsystem qualification, and smart phone charger reference design verification requiring stable component supply and documented thermal/surge performance.

Supply support for EV2606DQ-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 MP2606 product line delivers integrated linear Li-ion chargers optimized for space-constrained, cost-sensitive portable devices - emphasizing robustness against input transients, accurate CC/CV regulation, and minimal external component count.

FAQ

What is the purpose of JP4 on the EV2606DQ-00A board?

JP4 selects the power source for the status LEDs: connecting to VIN supplies LED1 (input present) and LED2 (charging) from the input rail, while connecting to BAT powers them from the battery rail - enabling system-level validation of both input and battery-side indicator behavior during charge/discharge cycles.

How is the charge termination current configured on this evaluation board?

The charge termination current thresholds (IBFL and IBFH) are set using resistor dividers: R3 (49.9kΩ) and R4 (20kΩ) form the low-threshold network, while R3, R4, and R5 (2.0kΩ) configure the high-threshold network - allowing independent adjustment of CC-to-CV transition points per JEITA guidelines.

Can the EV2606DQ-00A be used with batteries other than 4.2V Li-ion?

No - the board's output voltage is factory-preset to 4.2V and lacks external feedback resistor options for voltage reconfiguration; it is strictly intended for single-cell Li-ion or Li-polymer batteries compliant with 4.2V ±0.05V full-charge specification.

What does the "W/O Trickle Charge" designation mean for this board?

The MP2606DQ IC omits trickle-charge functionality entirely - it initiates CC charging only when battery voltage exceeds ~2.9V, skipping pre-conditioning for deeply discharged cells; this simplifies design but requires external supervision if battery voltage may fall below safe recharge thresholds.

Are the ceramic capacitors on the board rated for automotive temperature range?

No - C1–C4 use X7R dielectric with standard commercial-grade ratings (–55°C to +125°C operating, but not AEC-Q200 qualified); they meet industrial portable device requirements but lack automotive-grade screening, derating, or qualification documentation.

Does the board include overvoltage protection on the battery output?

No - the MP2606DQ IC provides input surge tolerance (28V) and thermal shutdown, but no integrated battery overvoltage protection; the board relies on the IC's internal 4.2V CV regulation and external battery protection circuitry must be added for full system safety compliance.