Description

18-Channel Multicell Battery Monitor Features: Measures up to 18 battery cells in series Maximum lifetime TME: ±1.8 mV at 3.3 V per cell (–40°C to +125°C) Simultaneous and continuous measurement of cell voltages Configurable integrated low-pass filtering Stackable architecture for high voltage battery packs Built-in isoSPI interface 2 Mbps 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 300 mA per channel 10 general-purpose analog inputs or digital I/O Temperature or other sensor inputs Configurable as an I2C or SPI master 2 additional analog inputs LPCM for cell and temperature monitoring in key-off state 4 μA sleep mode supply current Provisions for bus bars between channel 9 and 10 AEC-Q100 qualified for automotive applications