ADBMS2950B
RECOMMENDED FOR NEW DESIGNSBattery Pack Monitor
- Part Models
- 2
- 1ku List Price
- Starting From $7.90
Overview
- 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
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
Documentation
Data Sheet 1
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_SS | ||
| ADBMS2950BCCSZ-RL | LFCSP_SS |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareEvaluation Kits
Evaluation Board for the ADBMS2950B Battery Pack Monitor
Resources
Scalable BMS Kit for Cell and Pack Monitoring
Resources
Software
Cell and Pack Monitoring Kit for Broad Market Applications
Resources
Software
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