Monolithic Power Systems Inc. EV2790-0000-FP-00A

Overview

EV2790-0000-FP-00A from Monolithic Power Systems is an end-of-life evaluation board designed to demonstrate the MP2790DFP-0000 analog front-end IC - a 7- to 10-cell battery monitor and protector with I²C interface, ±1.5mV cell voltage accuracy, integrated high-side MOSFET drivers, and 4-channel NTC thermistor support for EV, ESS, and industrial battery packs.

For engineers reviewing the EV2790-0000-FP-00A datasheet, EV2790-0000-FP-00A pinout, EV2790-0000-FP-00A application, or EV2790-0000-FP-00A equivalent, this board enables rapid validation of MP2790-based BMS designs including coulomb counting, configurable over-current/short-circuit protection, soft-start discharge control, and passive balancing up to 58mA per cell.

Technical Context

The EV2790-0000-FP-00A implements the MP2790DFP-0000 (I²C variant) in a fully assembled 10S-capable layout, integrating power MOSFETs, a 0.5mΩ current-sense resistor, and NTC bias circuitry. It supports real-time cell voltage monitoring (0–5V), synchronous charge/discharge current measurement, and die temperature sensing.

It delivers 70A continuous charge/discharge capability, configurable protection thresholds (OVP/UVP/OCP/SCP/NTC hot/cold), and hardware-accelerated open-wire detection. The board includes USB-to-I²C interface compatibility (via EVKT-USBI2C-02) and full GUI-based configuration via MPS MP2790 Programming Tool.

Key Specifications

Availability

EV2790-0000-FP-00A is available at Aetrix Electronics and suitable for battery management system development, BMS firmware validation, and high-accuracy pack-level protection testing requiring stable component supply during design-in and pre-production phases.

Supply support for EV2790-0000-FP-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 expertise in battery monitoring, DC/DC conversion, and motor control solutions for automotive, industrial, and computing markets.

The MP2790 product line is designed specifically for high-accuracy, multi-cell lithium-based battery packs - delivering integrated protection, coulomb counting, and thermal monitoring in a single TQFP-48 package to reduce BMS bill-of-materials and layout complexity.

FAQ

Is the EV2790-0000-FP-00A still in active production?

No - the EV2790-0000-FP-00A is officially end-of-life per MPS documentation. Customers are directed to migrate to the replacement part EV2790-0000-FP-00B. Aetrix Electronics maintains limited legacy stock for design continuity but does not offer long-term supply assurance.

What software and hardware are required to operate this board?

The board requires the MPS MP2790 Programming GUI (Windows 7+), an EVKT-USBI2C-02 USB-to-I²C adapter, a USB cable, and either a simulated battery pack (18–55V DC source) or a real 7–10S Li-ion pack. CN7 jumper and SW1/SW2 settings must be configured per test mode (simulator vs. real pack).

Can this board evaluate open-wire detection and cell balancing functions?

Open-wire detection and internal passive balancing require a real battery pack with physical cell connections - these features cannot be validated using a cell simulator shunt. The board's placeholders for external balancing transistors support >58mA balancing only when used with actual cells and proper NTC thermistor wiring.

Does the board include protection fault logging and recovery configuration?

Yes - the GUI provides full register-level access to configure OCP, SCP, UVP, OVP, and thermal fault thresholds, deglitch timers, auto-recovery modes, retry counts, and cool-down delays. All faults generate interrupt flags and can be read via I²C, with status visible in real time on the "Monitor and Control" tab.

What is the role of GPIO2 and GPIOHV1 on this evaluation board?

GPIO2 controls the onboard bypass P-channel MOSFET: pulling it high enables ~1A bypass current when VPACK > (VTOP − 2V); pulling low disables it. GPIOHV1 is recommended for robust control - output low enables the MOSFET; Hi-Z mode disables it. Both pins support configurable pull-up, direction, and voltage reference (3.3V or REGIN).

How is coulomb counting calibrated and maintained on this board?

Coulomb counting uses synchronous current ADC sampling through the onboard 0.5mΩ sense resistor. Gain correction (87.5%–112.5%) compensates for resistor tolerance and layout parasitics. Integration count (32ms–2048ms slots) and power-save mode are configurable in the GUI; continuous back-to-back accumulation is supported for high-resolution SoC tracking.