Monolithic Power Systems Inc. EV2702-RP-00A

Overview

EV2702-RP-00A from Monolithic Power Systems is an evaluation board for the MP2702 26V, 1A linear battery charger IC, designed to demonstrate configurable JEITA thermal regulation, EN-controlled charge enable/disable, and USBM-set input current limiting in single-cell Li-ion/Li-polymer charging applications. It supports 4–6V operating input, 4.2V battery regulation, and jumper-selectable charge currents from 20mA to 1A.

For engineers reviewing the EV2702-RP-00A datasheet, EV2702-RP-00A pinout, EV2702-RP-00A application, or EV2702-RP-00A equivalent, this board enables rapid validation of MP2702's thermal window configuration, pre-charge scaling, input voltage limit response, and /EN-driven low-quiescent shutdown behavior under real-world power and battery conditions.

Technical Context

The EV2702-RP-00A implements the MP2702 QFN-10 (2.0mm × 2.5mm) IC with dedicated ISET, USBM, /EN, NTC, and /CHG pins. It provides hardware-accessible control of charge current (via JP1–JP3), pre-charge ratio (JP4–JP5), input current limit (JP8), and JEITA temperature thresholds (via external NTC network).

Board-level test points (TP1–TP9) and dual-row 2.54mm connectors (VIN, VBATT, /EN, USBM, NTC, EXT_PU, CHG, ACOK) allow direct probing and system-level interface testing. The layout includes X5R ceramic capacitors (0603/0805), precision film resistors (1% tolerance), and dual-color status LEDs for real-time charge state indication.

Key Specifications

Availability

EV2702-RP-00A is available at Aetrix Electronics and suitable for battery management validation, portable medical device prototyping, and IoT endpoint charger qualification requiring stable component supply and documented reference performance.

Supply support for EV2702-RP-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 expertise in DC/DC converters, battery chargers, LED drivers, and motor drivers.

The MP2702 product line delivers highly integrated linear chargers with JEITA-compliant thermal management and flexible enable/control interfaces, targeting space-constrained, thermally sensitive portable electronics.

FAQ

What is the purpose of the JP8 jumper on the EV2702-RP-00A?

JP8 configures the MP2702's USBM pin to select input current limit (IIN_LIM): floating sets 100 mA, logic high sets 500 mA (requires external 3 V pull-up between EXT_PU and GND), and logic low follows the ISET-derived charge current. This enables dynamic adaptation to different USB power sources during evaluation.

How does the board support JEITA profile customization?

The board exposes the NTC pin and includes a fixed 10 kΩ pull-down (JP10 installed), allowing connection of external NTC thermistors to define custom temperature windows and charge current reduction actions per JEITA standard. No onboard thermal regulation circuitry is preset-full configurability is retained via external components.

Can the EV2702-RP-00A be used with batteries below 0 V?

Yes-the board supports battery simulator inputs from 0 V to 4.2 V, enabling safe validation of trickle charge (50 mA at 0.5 V VBATT) and pre-charge modes before main charging begins. The MP2702 internally manages cell recovery without external intervention.

What is the function of the /EN pin and how is it controlled on this board?

The /EN pin enables or disables charging. JP6 connects it to GND (enabled by default); removing the shunt allows external logic-level control. When disabled, the MP2702 reduces IN and BATT pin quiescent current to minimize system standby power loss.

Are test points provided for critical signals like ISET and USBM?

Yes-TP1 through TP9 include dedicated access to VIN, VBATT, ISET, USBM, /EN, CHG, ACOK, and ground nodes. TP1–TP5 are yellow 1 mm test points; TP6–TP9 are 2.8 mm × 3.8 mm ground pads, enabling oscilloscope probing without soldering or signal loading.

Does the board include protection against reverse battery connection?

No reverse-battery protection is implemented on the EV2702-RP-00A. The MP2702 itself lacks reverse-voltage blocking; users must ensure correct polarity when connecting the battery simulator or cell to avoid damage to U1 or passive components.