Monolithic Power Systems Inc. EV2720A-RH-00A

Overview

EV2720A-RH-00A from Monolithic Power Systems is an I²C-controlled evaluation board for the MP2720A 1-cell, 2.2A NVDC buck charger IC, supporting 4–6.3V input, 0–4.6V battery range, 15mA termination current, and USB OTG boost (5.0–5.35V), designed for Li-ion/Li-polymer portable power validation.

For engineers reviewing the EV2720A-RH-00A datasheet, EV2720A-RH-00A pinout, EV2720A-RH-00A application, or EV2720A-RH-00A equivalent, this board enables rapid characterization of NVDC charging, JEITA thermal regulation, BC1.2 source detection, and I²C register-level control of charge parameters in real-time embedded battery systems.

Technical Context

The EV2720A-RH-00A implements the MP2720A's full feature set: integrated 2.2A synchronous buck charger with NVDC architecture, programmable 15mA termination threshold, dual NTC monitoring via configurable voltage dividers (JP2/JP3), and I²C-accessible JEITA profile with independent hot/cold temperature windows and action thresholds.

It supports USB Type-C interface via P1 connector, provides dedicated test points for all critical signals (SW, PMID, STAT/IB, PG/NTC2, RST), and enables both charger mode (default) and boost-mode OTG operation by applying regulated 5V to the IN pin - verified per MPS Rev. 1.1 schematic and performance summary.

Key Specifications

Availability

EV2720A-RH-00A is available at Aetrix Electronics and suitable for portable medical devices, industrial handhelds, and consumer wearables requiring stable component supply, rapid battery management validation, and JEITA-compliant thermal charging behavior.

Supply support for EV2720A-RH-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 since 1997.

The MP2720A product line targets single-cell Li-ion battery systems demanding precision charge control, NVDC efficiency, and robust thermal management - embodied in the EV2720A-RH-00A evaluation platform.

FAQ

What software is required to operate the EV2720A-RH-00A?

The official MP2720A Evaluation Software from Monolithic Power Systems is required. It communicates via the EVKT-USBI2C-02 interface, reads/writes all device registers, displays real-time charge status, JEITA state, and fault flags, and supports custom profile loading - no third-party drivers or SDKs needed.

Does the board support both charging and boost (OTG) modes simultaneously?

No - the EV2720A-RH-00A operates in either charger mode (default) or boost mode, selected by hardware configuration. Boost requires external 5V applied to the IN pin and disables charging; simultaneous bidirectional power path operation is not supported on this board layout.

How are NTC thermistors connected and configured on this board?

Two on-board NTC resistor dividers (JP2 for NTC1, JP3 for NTC2) connect to dedicated analog inputs. Jumper selection routes each to internal ADC channels; values are read via I²C registers (0x1E–0x1F), enabling independent hot/cold JEITA window definition per channel as specified in the MP2720A datasheet.

Can the termination current be adjusted below 15mA?

No - the MP2720A's minimum programmable termination current is 15mA, fixed by internal DAC resolution and register mapping (bitfield CHG_TERM in register 0x0B). The EV2720A-RH-00A implements this limit exactly as specified; no hardware modification enables lower values.

What is the purpose of the STAT/IB and PG/NTC2 jumpers (JP4–JP7)?

JP4 and JP5 configure LED indication for charge status (STAT) or battery current sense (IB); JP6 and JP7 configure LED indication for power good (PG) or second NTC input (NTC2). Only one jumper per pair may be installed - mutual exclusivity prevents signal contention and ensures correct GPIO mapping per MP2720A pin function.

Is external circuitry needed to use the USB Type-C connector (P1) for data communication?

No - P1 is wired solely for VBUS power delivery and CC line sensing (per BC1.2 detection). D+/D− pins are unconnected on the board; USB data communication is not implemented. The Type-C receptacle serves only for physical compatibility and source identification, not USB protocol stack interaction.