ADBMS2950B
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ADBMS2950B

Battery Pack Monitor

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Part Models 2
1ku List Price Starting From $6.24
Features
  • Battery pack current measurement
    • Buffered analog inputs
    • Continuous operation option
    • Lossless measurement for coulomb counting
    • 1 ms update rate
    • ±0.1% maximum gain error
    • ±1 µV maximum offset
    • Redundant implementation
  • Battery pack voltage measurement
    • Buffered analog inputs
    • Synchronous with current measurement
    • Differential and single-ended mode
    • Redundant implementation
  • 10 additional voltage measurement channels
    • Buffered analog inputs
    • On-demand operation
    • Differential and single-ended mode
    • Redundant implementation
  • Overcurrent detection
    • Triple redundancy with majority voting
    • PWM output options
  • Built-in isoSPI™ interface
    • 2 Mbps isolated serial communications
    • Capacitor or transformer coupled
    • Daisy-chaining option
    • 4-wire SPI option
  • General-purpose digital IO
    • Six general-purpose outputs (GPOs)
    • Dual threshold read-back of GPOs
    • Four GPIOs configurable as an I2C or SPI controller
  • 48-Lead side-solderable QFN package
Additional Details
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The ADBMS2950B is a battery pack monitor for current or voltage sense applications. It measures the current flowing in and out of a battery pack by sensing the voltage drop over a shunt resistor with a very low offset.

The ADBMS2950B also detects overcurrent conditions using fast overcurrent analog-to-digital converters (ADCs) with digital threshold comparators and communicate their results through dedicated overcurrent alert lines with minimum delay. It features a total of 12 internally buffered high impedance inputs for measuring voltages from external sensors or resistor-dividers, enabling measurement of pack voltages, temperatures, HV-Link voltages, chassis isolation, and the supervision of the state of contactors and fuses.

Six digital outputs (GPOs) supporting open-drain or push-pull can be used to control high voltage transistors to disconnect external resistor-dividers. Four digital general-purpose inputs/outputs (GPIOs) also allow operation as an I2C or SPI controller interface to address an external electronically erasable programmable read‐only memory (EEPROM) or other serial peripherals.

The built-in serial interface of the ADBMS2950B can be configured for SPI or isolated isoSPI communication to the host. An additional isoSPI port allows to connect a daisy-chain of the ADBMS2950B devices, which is optionally extended with the ADBMS6830B cell monitor.

Applications

  • Backup battery systems
  • Grid energy storage
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file View Data Sheet (Rev.0)
Documentation View All Documentation
Part Models 2
1ku List Price Starting From $6.24
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ADBMS2950B

Documentation

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Data Sheet

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UPDATED 09/12/2024
English

ADBMS2950B: Battery Pack Monitor Data Sheet (Rev.0)

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Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADBMS2950BCCSZ LFCSP SIDESOLDERABLE
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  • Material Declaration external-link
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  • Reliablity Data external-link
ADBMS2950BCCSZ-RL LFCSP SIDESOLDERABLE
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  • Material Declaration external-link
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  • Reliablity Data external-link

Software & Part Ecosystem

Evaluation Kits 2

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EVAL-ADBMS2950-BASIC

Evaluation Board for the ADBMS2950B Battery Pack Monitor

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EVAL-ADBMS2950-BASIC

Evaluation Board for the ADBMS2950B Battery Pack Monitor

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EVAL-ADBMS2950-BASIC
Evaluation Board for the ADBMS2950B Battery Pack Monitor

Features and Benefits

  • Fully-featured evaluation board for the ADBMS2950B
  • Bidirectional high-accuracy current measurement with on board shunt
  • Increased input-range overcurrent measurement and alert
    • Battery stack measurements
    • Battery stack voltage monitoring
    • Isolation measurement
    • Precharge monitoring
    • Fuse monitoring
    • Charger monitoring
    • Link voltage monitoring
  • Includes two isoSPI ports for daisy chain and reversible isoSPI support, and the isoSPI connections can be done through simple DuraClick™ connectors
Buy Now View Details

Product Detail

The EVAL-ADBMS2950B evaluation board features the ADBMS2950B, a bidirectional current monitor, with 12 buffered high-impedance voltage sense inputs, linked through a 2-wire isolated serial interface (isoSPI). The demo circuit also features reversible isoSPI, which enables a redundant communication path.

The EVAL-ADBMS2950B can communicate to a PC over isoSPI by attaching a EVAL-ADBMS6822 dual-controller isoSPI add-on board to the expansion headers of a EVAL-SDP-CK1Z, and then connecting the EVAL-SDP-CK1Z to a host PC through USB.

The EVAL-ADBMS2950B evaluation board can be operated on the same isoSPI daisy chain with other ADBMS2950B, and ADBMS6830B devices.

Full specifications on the ADBMS2950B are available in the ADBMS2950B data sheet available from Analog Devices, Inc., and must be consulted with this user guide when using the EVALADBMS2950B evaluation board.

Design files for this circuit board are available on the product webpage.

Applications

  • Mobile robot systems
  • E-scooter/E-bikes/Light electric vehicle
  • Power tools
  • Portable-energy storage system
  • Backup-battery system monitoring
  • Grid energy storage

Resources

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EVAL-ADBMS2950-BASIC User Guide Download

2.24 M

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AD-CELLPACKBM-SL

Cell and Pack Monitoring Kit for Broad Market Applications

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AD-CELLPACKBM-SL

Cell and Pack Monitoring Kit for Broad Market Applications

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AD-CELLPACKBM-SL
Cell and Pack Monitoring Kit for Broad Market Applications

Features and Benefits

  • Accurate voltage and current measurement
  • Highly scalable and ease of integration
  • Robust isoSPI capability implementable in daisy chain high count
  • Inclusive passive balancing with individual pulse-width modulation
  • Isolated power supply between microcontroller and battery monitoring devices
  • High voltage and current supply measurement
  • Fast overcurrent (OC) measurement
  • Redundancy measurement
  • Modular BMS Solution
  • Ready to use Broadmarket BMS GUI for Evaluation
Buy Now View Details

Product Detail

The AD-CELLPACKBM-SL is a complete BMS kit consisting of the EVAL-ADBMS6830BMSW 16-channel cell monitoring module, the EVAL-ADBMS2950-BASIC pack monitoring module, EVAL-ADBMS6822 isoSPI adapter, and a microcontroller board.​

The AD-CELLPACKBM-SL can operate either in embedded mode or through a PC-based graphical user interface. Complete with working software and hardware, as well as software examples, this kit makes it easier for customers to prototype and create connected systems and solutions for BMS applications.​

This package comes with the SDP-K1 as its MCU module, but the BMS components included in this kit are also compatible for use with other controller boards such as the AD-APARD32690-SL or MAX32690EVKIT.​

Upon purchase, the AD-CELLPACKBM-SL kit comes with the following boards and accessories:​.

Boards​

  • 2x EVAL-ADBMS6830BMSW 16-Channel Battery Cell Monitor (can be purchased separately)​
  • 1x EVAL-ADBMS2950-BASIC Battery Pack Monitor (can be purchased separately)​
  • 1x EVAL-ADBMS6822 Dual isoSPI Adapter (can be purchased separately)​
  • 1x EVAL-SDP-CK1Z (SDP-K1) Controller Board (can be purchased separately)​
  • 2x DC2472A Battery Cell Emulator (can be purchased separately)​
  • 1x MAX32625PICO Programming Adapter with 10-pin SWD cable (can be purchased separately)​

Cables and Other Accessories​

  • 2x Cell Connector Block (18-cell connector)​
  • 3x DuraClik isoSPI Twisted Pair Cables​
  • 3x USB Type A to Micro-B Cable​
  • 3x Alligator Clip / Test Lead​

APPLICATIONS

  • IoT Battery Management
  • Industrial Machine Vision
  • Power Tools
  • Mobile Robotics Battery Management
  • Industrial Equipment Battery Monitoring
  • Adaptive Battery Type System Monitoring
  • Portable Energy Storage Systems
  • Electric Two-Wheelers (E2W such as E-scooter, E-bikes)
  • Light Electric Vehicles

Resources

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ZIP

AD-CELLPACKBM-SL Design Support Files Download

16.62 M

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WIKI

AD-CELLPACKBM-SL Software User Guide (Wiki) reference design link

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WIKI

AD-CELLPACKBM-SL: Broad Market BMS Kit User Guide (Wiki) reference design link

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Software

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Evaluation GUI for ADI Broadmarket BMS Products reference design link

Evaluation Kits2

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EVAL-ADBMS2950-BASIC

Evaluation Board for the ADBMS2950B Battery Pack Monitor
evaluation kit item images

AD-CELLPACKBM-SL

Cell and Pack Monitoring Kit for Broad Market Applications

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