10s-20s Smart BMS with Integrated MCU and Cell Balancing

    Key Features

    • Fully Programmable 50Mhz Arm Cortex M0 with 32kB Flash
    • 10s-20s Cell Monitoring & Balancing
    • 19V-145V Input Buck DC/DC
    • High Voltage Charge Pump for gate drive
    • 5V/225mA Regulator
    • CHG/DSG FET Driver
    • 20s Cell Balancing FETs (50mA)
    • 16-bit SD ADC for Current Sense with Differential PGA
    • 16-bit SD ADC for voltage sense, cell balance
    • 10-bit SAR ADC for voltage/temp sense
    • Programmable 2-Level OCP
    • Ta = -40 C to 105 C
    • 9 x 9 mm, 60 pin QFN with power pad

    The Qorvo® PAC22140 is a Smart Battery Monitoring System (BMS) that can monitor 10-series to 20-series Li-Ion, Li-Polymer and LiFePO4 battery packs. The PAC22140 integrates a FLASH-programmable MCU, Power Management, Current/Voltage/Temperature Sense and drive circuits for charge/discharge FETs and protection fuses. It can communicate using UART/SPI or I2C/SMBus serial interfaces.

    The PAC22140 contains an Arm® Cortex®-M0 with 32kB of FLASH and 8KB of SRAM and has access to several different analog and digital peripherals that is intended to be used for the fuel gauging algorithm and system telemetry reporting. There is a single supply 145V input Buck DC/DC controller, used to generate gate drive voltages for external charge and discharge FETs and external FUSE FET, as well as all the sub-regulators required for the MCU and other sub-systems in the device. There are high-side gate drivers for a charge and discharge FET, as well as a low-side driver to blow a battery pack fuse. The device also integrates a programmable-gain differential amplifier and 16-bit Sigma-Delta ADC for current sense as well as a 16-bit Sigma-Delta ADC for cell balancing voltage sense and a 10-bit SAR ADC for additional voltage and temperature sense usage.

    The PAC22140 is packaged in an 9 x 9 mm, 60-pin QFN package for compact, high cell count battery-monitoring applications.

    Typical Applications

      • Garden Tools
      • Power Tools
      • E-Transportation
      • Broad Industrial Battery Management
    Battery Cell Count 10 to 20
    Battery Cell Balancing Integrated Cell Balancing FETs (50mA)
    Stackable Application Specific
    Input Voltage(V) 145
    Power Management 145V DC/DC Buck Controller
    Voltage Regulator(V/mA) 5 V / 225 mA, 3.3 V / 90 mA
    Gate Drivers CHG/DSG Drivers
    eFuse FET Driver Yes
    Microcontroller 50MHz ARM Cortex M0 with 10bit SAR ADC
    MCU Flash(KB) 32kB - Flash , 8kB - SRAM
    Isense ADC 16-bit SD ADC with Differential PGA
    Vsense ADC 16-bit SD ADC
    Interface UART/SPI, I2C/SMBus
    Package Type QFN, 60-pin
    Package(mm) 9 x 9
    RoHS Yes
    Lead Free Yes
    Halogen Free Yes
    ITAR Restricted No
    ECCN EAR99

    PAC22140EVK1 Evaluation Kit


    Qorvo's PAC22140EVK1 development platform is a complete hardware solution enabling users not only to evaluate the PAC22140 device, but also develop Smart Battery Management System (BMS) solutions by taking advantage of the fully integrated Arm® Cortex®-M0 based microcontroller with BMS specific Analog Front End. The module contains a PAC22140 Power Application Controller® (MCU) and all the necessary circuitry to properly energize the MCU and its internal peripherals once power is applied.

    To aid in the application development the PAC22140EVK1 offers access to each and every one of the PAC22140 device's signals by means of a series of male header connectors.

    PAC22140EVK1 User's Guide

    PAC22140EVK1 Schematics, Layout, BOM, Gerber Files and Altium Project

    Video: Using Intelligent Battery Management to Optimize System Performance

    Supporting Evaluation Tools


    The ET-UARTSWD adapter is the preferred adapter for evaluation of PAC devices/firmware and combines a USB to UART adapter with SWD debugger connector adaptation into a single board with isolation. The ET-UARTISO-1 adapter provides only the USB to UART adapter with isolation for Qorvo application GUI communications.


    The ET-UARTSWD isolated communications and debugging interface unifies two modules into one. Previously, interfacing a PC Computer to any of Qorvo's PAC5xxx Evaluation Modules required one module to enable UART based serial communications and a second module to allow for in-system debugging and FLASH memory programing.

    Download ET-UARTSWD User Manual

    PAC5xxx Flash Programmer Tools

    Qorvo has partnered with Flash Programmer solution providers to support our Intelligent Motor Control PAC product families. These proven tools are suitable for emerging and high volume product manufacturing. Both package level (socketed) and board level Flash programming solutions are available.

    Qorvo will support other vendors familiar with Arm® Serial Wire Debug (SWD) protocol to add PAC product compatibility on their existing Flash programmer platforms. For details, please contact Qorvo Sales.

    PAC22xxx Software

    PAC22xxx BMS Application Firmware
    Version: v2.0.3
    Installer for the PAC22xxx BMS application firmware, which a full featured Battery Management System solution (BMS), which offers charge and discharge control, cell state of charge reporting, fault generation and protection, as well as cell balancing control. The installer contains example application source code, Windows graphical user interface (GUI), and documentation to allow the user to configure the system to work with their target battery pack. Project files for IAR Systems Embedded Workbench for Arm (EWARM), Keil uVision, and Eclipse are included.
    PAC22xxx Software Development Kit
    Version: v1.0.0
    Installer for the PAC22xxx Software Development Kit (SDK) that provides register level definitions and peripheral driver APIs for developing Arm M0 application firmware on all PAC22xxx devices. The PAC22xxx SDK is a unified SDK that supports Keil µVision IDE, IAR Systems Embedded Workbench for Arm (EWARM) IDE, and GCC tool chains.
    PAC22xxx ActiveFlashLight™ Bootloader
    Version: v1.2.1
    Installer for the PAC22xxx ActiveFlashLight™ Bootloader that provides source code and example projects for in-system FLASH programming using the UART peripheral. Supported IDEs are Keil MDK (µVision), IAR Systems Embedded Workbench for Arm (EWARM), and Eclipse.

    PAC2xxxx IDE Support

    Development of application firmware for PAC2xxxx Arm® Cortex® M0 is made easy with standard integrated development environments (IDEs). Several of the most popular IDEs contain support for PAC2xxxx devices including Keil uVision, and IAR Systems Embedded Workbench for Arm®. Eclipse development is possible using J-Link by downloading and installing the "Eclipse with PAC support" package.

    PAC2xxxx Keil IDE Guide
    Version: 2018-08-21
    Guide for installing Keil uVision for development of PAC2xxxx application firmware.
    PAC2xxxx Keil .pack v1.0.9 to v2.0.0 upgrade
    Version: 2018-02-22
    Guide for upgrading the Keil uVision PAC2xxxx pack from v1.0.9 to v2.0.0.
    PAC IAR Support
    Version: 2019-07-31
    PAC IAR Systems Embedded Workbench IDE installation guide and patches.
    Eclipse with PAC Support
    Version: v1.1.0 2019-03-27
    Installer for Eclipse and supporting plugins for development on the PAC family of devices.
    OpenOCD Support
    Version: 1.0.1 2020-11-02
    PAC support files for miscellaneous debuggers.