Analog Devices Inc. ADBMS6830 16-Channel Multicell Battery Monitors

Analog Devices Inc. ADBMS6830 16-Channel Multicell Battery Monitors measure up to 16x series-connected battery cells with a total measurement error of less than 2mV across all temperatures. The Analog Devices Inc. ADBMS6830 monitors have a measurement input range of -2V to +5.5V. The monitors are ideal for various battery chemistries, allowing voltage measurement across bus bars. The devices include provisions for bypassing bus bars without using dedicated measurement channels. All cells can be measured using two individual analog-to-digital converters (ADCs). The ADCs operate continuously at a high sampling rate of 4.096MHz.

Features

Measures up to 16x battery cells in series
±1.8mV at 3.3V per cell (-40°C to +125°C) maximum lifetime TME
Simultaneous and continuous measurement of cell voltages
Configurable integrated low-pass filtering
Stackable architecture for high-voltage battery packs
Built-in iso SPI interface
2Mbps isolated serial communications
Uses a single twisted pair, up to 20 meters per segment
Low EMI susceptibility and emissions
Bidirectional for broken wire protection
Capacitor or transformer coupled

Hot-plug tolerant without external protection
Passive cell balancing up to 300mA per channel with programmable pulse-width modulation
Up to 10x general-purpose analog inputs or digital I/O
Temperature or other sensor inputs
Configurable as an I²C or SPI master
LPCM for cell and temperature monitoring in key-off state
4μA sleep mode supply current
Provisions for bus bars
AEC-Q100 qualified for automotive applications
ADBMS6830WFS models developed for use in ISO 26262 applications for ASIL D

Applications

Electric and hybrid electric vehicles
Backup battery systems
Grid energy storage

Block Diagrams

Block Diagram - Analog Devices Inc. ADBMS6830 16-Channel Multicell Battery Monitors

Analog Devices Inc. ADBMS6830 16-Channel Multicell Battery Monitors

Features

Applications

Block Diagrams

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