ADBMS1816

RECOMMENDED FOR NEW DESIGNS

Multicell Battery Monitor

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Overview

  • Measures up to 16 battery cells in series
  • ±3 mV maximum total measurement error after software calibration (3.3 V)
  • Stackable architecture for high-voltage systems
  • Current measurement with coulomb counter
  • Built-in isoSPI
    • 2 Mbps isolated serial communication
    • Low EMI susceptibility and emissions
    • Bidirectional for broken wire protection
  • Standard 4-wire SPI
  • Configurable low-pass filter
  • Passive cell balancing up to 300 mA (maximum) with programmable PWM
  • 4 general-purpose digital outputs
  • 7 temperature or sensor inputs
  • I2C interface
  • Alert output available
  • VP supply current (TRANS = VMx, core = sleep, isoSPI = idle, VREG = 0 V): 26 μA
  • 64-lead LQFP with an exposed pad
ADBMS1816
Multicell Battery Monitor
ADBMS1816 Chip Illustration
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Tools & Simulations

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Evaluation Kits

eval board
AD-BMSE2E3WLC-SL

Low-cost Battery Management System Reference Design for E2W/E3W Applications

Features and Benefits

    Wide Range BMS System

    • 36V to 96V operation, can handle currents up to 100A
    • Simplified E2W/E3W AD-BMSE2E3WLC-48V baseboard + EVAL-ADBM1816WLC daughter board configuration​​

    Battery Chemistry Compatibility

    • Supports multiple battery chemistries: Ni-MH, Li-ion, LiFePO4, Sodium-Ion, and others

    System Integration

    • Plug-and-play integration
    • MCU-agnostic design for easy integration into existing systems
    • Flexible topology support: Centralized, Distributed, and Modular configurations

    Monitoring Capabilities

    • Cell voltage accuracy: ±3.6mV
    • Temperature monitoring: Up to 8 sensors
    • SoC/SoH Coulomb counting
    • High-side and low-side current sensing

    Vehicle State Management

    • E2W/E3W vehicle state condition readiness
    • Support for Driving, Charging, Parking, and Fault states

    Connectivity and Software

    • Daisy-chaining ready for multi-board configurations
    • Comprehensive GUI compatible with any PC/laptop
    • Integrated firmware and GUI software suite
    • Real-time monitoring, diagnostics, and data plotting capabilities
    • Open-source BMS example codes provided

Product Details

The AD-BMSE2E3WLC-SL Solution Kit is a cost-competitive, system-level reference design developed for medium- to high-performance Battery Management System (BMS) applications in Electric 2-Wheeler (E2W) and Electric 3-Wheeler (E3W) platforms. Designed for battery systems operating from 36V to 96V and supporting currents up to 100A, the solution combines accurate battery monitoring, current sensing, protection, and system control into a flexible development platform. The kit leverages the automotive-grade ADBMS1816W battery monitoring IC to provide precise cell-voltage measurement, temperature monitoring, and pack-level diagnostics, enabling developers to evaluate and accelerate the implementation of advanced BMS functions for a wide range of battery chemistries, including Li-ion, LiFePO4, Ni-MH, and Sodium-Ion batteries.

The solution kit consists of two primary hardware components: the AD-BMSE2E3WLC-48V baseboard, which integrates current sensing, power-path control, communication interfaces, and system-level BMS functionality and the EVAL-ADBMS1816WLC daughterboard, which expands cell-monitoring capability and enables support for higher cell-count battery packs. The package also includes the MAX32666FTHR microcontroller board, which executes BMS algorithms and provides USB-to-SPI communication for GUI interaction and two DC2472A Battery Emulator boards for evaluation and testing purposes, allowing users to simulate battery-cell voltages without connecting an actual battery pack. ​

The solution kit consists of two primary hardware components: the AD-BMSE2E3WLC-48V Base Board, which integrates current sensing, power-path control, communication interfaces, and system-level BMS functionality and the EVAL-ADBMS1816WLC Daughter Board, which expands cell-monitoring capability and enables support for higher cell-count battery packs. The package also includes the MAX32666FTHR microcontroller board, which executes BMS algorithms and provides USB-to-SPI communication for GUI interaction and two DC2472A Battery Emulator boards for evaluation and testing purposes, allowing users to simulate battery-cell voltages without connecting an actual battery pack.

Featuring built-in charge and discharge control circuitry with both high-side and low-side current sensing, the AD-BMSE2E3WLC-SL supports accurate State of Charge (SoC) and State of Health (SoH) estimation while providing the flexibility to implement centralized, distributed, or modular BMS architectures. Its modular and stackable design supports standard Arduino and Feather form factors, allowing users to integrate their preferred MCU platforms with minimal hardware modification. The system is further enhanced by daisy-chain-ready isoSPI connectivity, enabling scalable battery monitoring solutions for larger systems.

To accelerate development, this reference design also includes open-source firmware examples and a comprehensive PC-based graphical user interface (GUI) that provides real-time monitoring, diagnostics, configuration, and data visualization capabilities.

Upon purchase, the AD-BMSE2E3WLC-SL Solution Kit comes complete with:

Boards:

  • 1x AD-BMSE2E3WLC-48V Baseboard (can be purchased separately) ​
  • 1x EVAL-ADBMS1816WLC Daughterboard (can be purchased separately) ​
  • 1x MAX32666FTHR Microcontroller Board (can be purchased separately)
  • 1x MAX32625PICO Programmer with 10-pin SWD Debugger Cable (can be purchased separately)
  • 2x DC2472A Battery Cell Emulator (can be purchased separately)

Accessories:

  • 2x USB Cable (Male USB-A to Male Micro USB-B)
  • 2x Red Alligator Clip to Banana Plug (1166-12-0)
  • 2x Black Alligator Clip to Banana Plug (1166-12-0)
  • 2x isoSPI Twisted Pair Cable

However, customers also have the option to avail of the components individually as intended for their application development.

APPLICATIONS

  • Medium to High Performance Electric and Hybrid 2- or 3-Wheeler Vehicles
  • Light Electric Vehicles (LEVs)
  • BMS Battery Research and Development
  • Adaptive Battery Type System Monitoring
  • Portable Energy Storage Systems

eval board
EVAL-ADBMS1816WLC

E2/E3W BMS Extension Board

Features and Benefits

Wide Range BMS System

  • Can operate from 36V to 48V, can handle currents up to 100A​

Battery Chemistry Compatibility

  • Supports multiple battery chemistries: Ni-MH, Li-ion, LiFePO4, Sodium-ion, and others

System Integration

  • Can be used with Arduino-based microcontroller board
  • Plug-and-play integration<

Monitoring Capabilities

  • Cell voltage accuracy: ±3.6mV
  • Temperature monitoring: Up to 8 sensors
  • SoC/SoH Coulomb counting

Connectivity and Software

  • Daisy-chaining ready for multi-board configurations
  • With comprehensive GUI that is compatible with any PC/laptop and enables real-time battery monitoring and diagnostics

Product Details

The EVAL-ADBMS1816WLC is an expansion and evaluation platform designed to work in conjunction with the AD-BMSE2E3WLC-48V Baseboard, providing additional cell-monitoring capability for battery packs used in Electric 2-Wheeler (E2W), Electric 3-Wheeler (E3W), and Light Electric Vehicle (LEV) applications.

The board is built around the ADBMS1816W battery-monitoring IC, which enables precise measurement of battery cell voltages. Designed for seamless integration, the EVAL-ADBMS1816WLC Daughter Board connects to the AD-BMSE2E3WLC-48V Baseboard through isoSPI communication, supporting scalable and daisy-chain-ready battery management architectures.

The design includes Arduino-compatible headers, dedicated cell connectors, and robust communication interfaces that simplify hardware setup and system expansion. When combined with the AD-BMSE2E3WLC software ecosystem, firmware examples, and GUI tools, the daughter board enables real-time cell-voltage monitoring, diagnostics, data visualization, and rapid evaluation of battery management algorithms for a wide range of rechargeable battery chemistries and energy-storage applications.

APPLICATIONS

  • Medium to High Performance Electric and Hybrid 2- or 3-Wheeler Vehicles
  • Light Electric Vehicles
  • BMS Battery Research and Development
  • Adaptive Battery Type System Monitoring
  • Portable Energy Storage Systems

For those interested in purchasing the Solution Kit, which includes the baseboard as well as the other accessories needed for full reference design evaluation, please visit the AD-BMSE2E3WLC-SL page.

eval board
AD-BMSE2E3WLC-48V

48V Battery Monitor for E2/E3W Applications

Features and Benefits

Wide Range BMS System

  • Can operate from 36V to 48V, can handle currents up to 100A​

Battery Chemistry Compatibility​

  • Supports multiple battery chemistries: Ni-MH, Li-ion, LiFePO4, Sodium-ion, and others​​

System Integration

  • Plug-and-play integration
  • MCU-agnostic design for easy integration into existing systems
  • Flexible topology support: Centralized, Distributed, and Modular configurations

Monitoring Capabilities

  • Cell voltage accuracy: ±3.6mv
  • Temperature monitoring: Up to 8 sensors
  • SoC/SoH Coulomb counting
  • High-side and low-side current sensing

Vehicle State Management

  • E2W/E3W vehicle state condition readiness
  • Support for Driving, Charging, Parking, and Fault states

Connectivity and Software

  • Daisy-chaining ready for multi-board configurations
  • Comprehensive GUI compatible with any PC/laptop
  • Integrated firmware and GUI software suite
  • Real-time monitoring, diagnostics, and data plotting capabilities
  • Open-source BMS example codes provided

Product Details

The AD-BMSE2E3WLC-48V is the baseboard of the AD-BMSE2E3WLC-SL Solution Kit, developed to simplify the evaluation of Battery Management Systems for Electric 2- and 3-Wheeler (E2/E3W), Light Electric Vehicle (LEV), and energy storage applications.

Operating over a battery voltage range of 36V to 48V and supporting currents up to 100A, the board integrates battery monitoring, current sensing, power-path control, communication interfaces, and MCU connectivity into a single platform. Its MCU-agnostic architecture, Arduino-compatible headers, FeatherWing connector, and isoSPI communication interface provide flexibility for integration into centralized, distributed, or modular BMS architectures.

When paired with the EVAL-ADBMS1816WLC Daughter Board, it enables a wider range of high-accuracy cell voltage measurement (up to 96V), temperature monitoring, SOC/SOH estimation, and battery protection functions required for LEV systems.

Built around the automotive-grade ADBMS1816W battery monitoring IC, the AD-BMSE2E3WLC-48V Baseboard supports multiple battery chemistries, including Li-ion, LiFePO4, Ni-MH, and Sodium-ion batteries.

APPLICATIONS

  • Medium to High Performance Electric and Hybrid 2- or 3-Wheeler Vehicles
  • Light Electric Vehicles
  • BMS Battery Research and Development
  • Adaptive Battery Type System Monitoring
  • Portable Energy Storage Systems

For those interested in purchasing the Solution Kit, which includes the daughterboard as well as the other accessories needed for full reference design evaluation, please visit the AD-BMSE2E3WLC-SL page.

AD-BMSE2E3WLC-SL
Low-cost Battery Management System Reference Design for E2W/E3W Applications
AD-BMSE2E3WLC-48V Top Angle Evaluation Boardm AD-BMSE2E3WLC-48V Top Evaluation Board EVAL-ADBMS1816WLC Top Angle Evaluation Board EVAL-ADBMS1816WLC Top Evaluation Board AD-BMSE2E3WLC-SL Simplified Block Diagram
EVAL-ADBMS1816WLC
E2/E3W BMS Extension Board
EVAL-ADBMS1816WLC Top Angle Evaluation Board EVAL-ADBMS1816WLC Top Evaluation Board EVAL-ADBMS1816WLC Bottom Evaluation Board EVAL-ADBMS1816WLC Simplified Block Diagram
AD-BMSE2E3WLC-48V
48V Battery Monitor for E2/E3W Applications
AD-BMSE2E3WLC-48V Top Angle Evaluation Boardm AD-BMSE2E3WLC-48V Top Evaluation Board AD-BMSE2E3WLC-48V Bottom Evaluation Board AD-BMSE2E3WLC-48V Simplified Block Diagram

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