Monolithic Power Systems Inc. MEZS7-SHAREDPOWERBANK

Overview

MEZS7-SHAREDPOWERBANK from Monolithic Power Systems is a complete, I²C-controlled solution module built around the MP2696A single-cell switching charger and boost controller, integrating MCU-based power-path management, LED state-of-charge indication, and USB-A output regulation. It delivers up to 3.6A charge current from 5V micro-USB input and supplies regulated 5.05–5.25V at up to 3.6A for external device charging in shared power bank deployments.

For engineers reviewing the MEZS7-SHAREDPOWERBANK datasheet, MEZS7-SHAREDPOWERBANK pinout, MEZS7-SHAREDPOWERBANK application, or MEZS7-SHAREDPOWERBANK equivalent, this module provides turnkey implementation of dual-direction power-path control, programmable JEITA-compliant charging, USB cable compensation, and real-time battery current monitoring via analog IB output - all accessible through standardized I²C commands.

Technical Context

The MEZS7-SHAREDPOWERBANK implements a fully integrated power bank reference design with three operational states: charge mode (4–6V input → battery), boost mode (battery → 5V SYS output), and sleep mode (auto-entry after 32s no-load). Its core MP2696A IC manages bidirectional power flow using synchronous buck-boost topology with adaptive input current limiting and minimum input voltage loop for adapter power tracking.

System-level intelligence is provided by an ABOV MC96F1206UBN MCU that handles LED state-of-charge sequencing, button-triggered SYS activation, NTC thermistor interfacing, and BC1.2/legacy adapter detection via DP/DM interface - enabling robust plug-and-play behavior without host processor dependency.

Key Specifications

Availability

MEZS7-SHAREDPOWERBANK is available at Aetrix Electronics and suitable for shared power bank kiosks, rental station battery backup systems, and USB Type-A portable charging stations requiring stable component supply, rapid time-to-market, and field-upgradable firmware control.

Supply support for MEZS7-SHAREDPOWERBANK 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 DC/DC conversion, battery management, and motor drivers for consumer, industrial, and automotive applications.

The MEZS7-SHAREDPOWERBANK belongs to MPS's reference design module portfolio, engineered to accelerate development of certified, production-ready shared power infrastructure - reducing validation effort while ensuring compliance with USB power delivery expectations and JEITA thermal safety standards.

FAQ

What are the required connections to operate the MEZS7-SHAREDPOWERBANK in standalone mode?

Standalone operation requires only three connections: battery (TP1/TP2), 5V input (P2 micro-USB or TP3/TP4), and load (P1 USB-A or TP5/TP6). The onboard MCU automatically initiates charge or boost based on presence of input power and load, with SW1 button providing manual SYS output enable.

How does the board handle battery under-voltage lockout (UVLO)?

The MEZS7-SHAREDPOWERBANK enforces BATT_UVLO protection per MP2696A specification: if battery voltage drops below ~2.8V during discharge, the boost converter disables and enters sleep mode until recharge begins. The quick-start guide explicitly warns against operating with deeply discharged cells to prevent UVLO lockout.

Can the JEITA charging profile be customized, and how is it implemented?

Yes - the JEITA profile is fully customizable via I²C registers controlling temperature thresholds and corresponding charge voltage/current limits across cold, cool, normal, warm, and hot zones. The onboard NTC circuit (JP1 installed) feeds temperature data to the MP2696A, which executes the programmed thermal policy without MCU intervention.

What is the role of the MC96F1206UBN MCU on the board?

The ABOV MC96F1206UBN MCU manages non-power-path functions: LED state-of-charge sequencing (LED1–LED4), SW1 button debouncing and SYS toggle, BC1.2/DP-DN handshake detection, and I²C bridge between host PC and MP2696A registers - enabling GUI-based configuration without modifying the charger IC's firmware.

Does the module support USB cable compensation, and how is it configured?

Yes - the MP2696A implements programmable USB cable compensation to maintain 5V ±5% at the load end. Compensation is enabled via I²C register and calibrated using external resistors (R11–R14) that set the voltage drop estimate; typical configuration yields ±150mV compensation over 0.5–2A load range.

What safety protections are implemented beyond JEITA and thermal shutdown?

In addition to JEITA and thermal shutdown, the module implements input over-voltage protection (OVP), SYS over-current and short-circuit protection, charge safety timer (programmable up to 12 hours), and automatic sleep mode entry after 32 seconds of SYS no-load - all enforced by the MP2696A hardware logic independent of MCU control.