30 V, 5 A Buck-Boost Charger with Integrated MOSFETs and OTG

    Key Features

    • Buck-boost charger with integrated FETs
    • Input voltage range: 4 to 2 9V (no dead zone)
    • Supports 2 to 5 series cell battery packs
    • JEITA compliant
    • Seamless transition between buck and boost mode
    • OTG output supports QC2.0/3.0/4.0, USB PD with PPS, AFC
    • 2 V ~ 5 V / 100 mA programmable output LDO
    • < 1 µA battery leakage current in ship mode
    • Voltage and current monitoring
    • Thermal regulation and protection
    • Programmable via I2C or standalone option
    • Thermally enhanced 32-pin 4x4 mm QFN package

    Qorvo's ACT2861 is a buck-boost charger with 4 integrated MOSFETs. It offers a high efficiency, low component count, compact solution for 2 to 5 cell battery charging applications. It operates from an input voltage range of 4 to 29 V.

    An advanced switch control algorithm allows the buck-boost converter to maintain output voltage regulation with input voltages that are above, below or equal to the output voltage.

    The product is optimized to reduce input current in shipping, shutdown, and standby for applications which are sensitive to quiescent current draw, such as battery-powered devices.

    The system can be monitored and configured by I2C. The built-in ADC can be read for information on input/output voltages and currents and the die temperature. With an MCU, it can easily be configured to charge a multi-cell battery pack from a variety of input power sources.

    Typical Applications

      • Multi-Cell Battery Chargers
      • Portable Battery Powered Devices
      • Car Chargers
      • Power Banks
      • 24 V Industrial Applications
      • Automotive Power Systems
      • Multiple Power Source Supplies
      • DC UPS Units
      • Solar Powered Devices
      • Solid-State Lighting
    Charger Topology Buck-Boost
    Battery Cell Count 2 to 5
    Input Voltage(V) 4.0 to 29.0
    Max Charge Current(A) 5.0
    Built-In LDO Regulator 2-5 V / 100 mA
    USB On-The-Go (OTG) Yes
    Max OTG Current(A) 5.0
    OTG Output Auto-Detection No
    Battery Cell Balancing No
    Interface I2C
    ADC Yes
    Package Type QFN, 32-pin
    Package(mm) 4 x 4
    RoHS Yes
    Lead Free Yes
    Halogen Free Yes
    ITAR Restricted No
    ECCN EAR99

    ACT2861EVK1-201ACT2861EVK1-201 Evaluation Kit

    ACT2861EVK1-201 User's Guide

    This document describes the characteristic and operation of the Qorvo ACT2861EVK1-201 EVK Rev B evaluation kit (EVK).

    It provides setup and operation instructions, schematic, layout, BOM, and test data. To access all registers download the software GUI.

    This EVK demonstrates the ACT2861 ActivePMU™ power management IC.

    ACT2861EVK1-201 Altium Project Files

    ACT2861 GUIACT2861 GUI

    The ACT2861 Graphical User Interface (GUI) (Rev 2.3) is packaged in a ZIP file that includes the software and all necessary drivers to communicate with the ACT2861EVK1-201 Evaluation Tool, as well as all descriptions how to use the tool.