Monolithic Power Systems Inc. EV2607DL-00A

Overview

EV2607DL-00A from Monolithic Power Systems is an evaluation board for the MP2607DL linear single-cell Li-ion battery charger IC with integrated system power path management. It supports dual-input sourcing (AC adapter or USB), delivers up to 650 mA charge current, regulates SYS output to 4.9 V under AC input, and enables simultaneous system powering and battery charging with seamless input switchover-used in handheld test equipment and portable consumer devices.

For engineers reviewing the EV2607DL-00A datasheet, EV2607DL-00A pinout, EV2607DL-00A application, or EV2607DL-00A equivalent, this board provides validated reference design, jumper-configurable charge current (250–1250 mA), real-time LED status feedback (STAT1/STAT2), thermal fault detection, and programmable charge termination via external resistor or timer-critical for rapid prototyping of power-managed portable systems.

Technical Context

The EV2607DL-00A implements a complete hardware validation platform for the MP2607DL IC, featuring independent input-to-system LDO (4.9 V) and battery-to-system switch, enabling true power path separation. It supports MODE=0 (USB-limited input, 500 mA default) and MODE=1 (AC adapter, higher current), with automatic transition between charging and supplement mode when system load exceeds input capability.

Board-level implementation includes NTC thermistor interface for battery temperature monitoring, CEB-controlled enable/disable with 0.4 V / 1.5 V thresholds, and ICHSET resistor network (R6/R7) for precise CC programming. All critical signals-VIN, BATT, SYS, STAT1, STAT2, TMR, and MODE-are accessible via test points and headers per the QFN14 layout.

Key Specifications

Availability

EV2607DL-00A is available at Aetrix Electronics and suitable for smart handheld device development, portable instrumentation prototyping, and USB/AC-powered consumer electronics requiring stable component supply and verified power path behavior.

Supply support for EV2607DL-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 converters, battery management, and motor drivers.

The MP2607DL product line targets compact, thermally constrained portable applications requiring integrated charge control and uninterrupted system operation-designed specifically for space-sensitive devices where power path independence and USB compliance are mandatory.

FAQ

What input sources does the EV2607DL-00A support?

The board accepts either 5 V AC adapter (MODE=1) or USB port (MODE=0) as input. In MODE=0, internal current limiting enforces USB 2.0 compliance (≤500 mA); in MODE=1, higher current is allowed. Input voltage must stay within 4.5–5.9 V to ensure proper LDO regulation and power path switching.

How is charge current configured on this evaluation board?

Charge current is set using jumpers JP1–JP3 in combination with R6 (3.6 kΩ) or R7 (8.66 kΩ). Configurations yield discrete values: 250 mA, 650 mA, 900 mA, 1000 mA, or 1250 mA. The ICHSET pin voltage determines actual current per MP2607DL's 1000 V/A transconductance, verified by on-board test points.

What do the LED indicators signify during operation?

LED1 (green) and LED2 (red) encode four states: Charging (both ON), End-of-Charge (LED1 ON, LED2 OFF), Suspended (LED1 OFF, LED2 ON), and Fault/Disabled (both OFF). These reflect internal STAT1/STAT2 logic driven by MP2607DL, including thermal shutdown, timer timeout, or NTC out-of-range conditions.

Can the EV2607DL-00A power a system load while charging the battery?

Yes-this is the core function of its power path architecture. When input is present, the board powers the system directly from VIN via LDO while simultaneously charging the battery. If system load exceeds input capability, it enters supplement mode: battery assists the system, reducing charge current dynamically without interrupting operation.

Is NTC thermistor support implemented on this board?

Yes-the board includes dedicated NTC terminals (NTC pins 5 and 6 on U1) and routing for external thermistor connection. This enables battery temperature monitoring per JEITA standards; out-of-range readings trigger charge suspension, indicated by LED2 ON / LED1 OFF.

What is the purpose of the CEB pin and how is it used?

The CEB pin controls device enable/disable: <0.4 V enables the MP2607DL; >1.5 V disables it. On the EV2607DL-00A, CEB is routed to a test point and can be driven externally or pulled via resistor network. This allows precise sequencing control in host systems where charger activation must be synchronized with system power-up.