The LTC6802-1 is a complete battery monitoring IC that includes a 12-bit ADC, a precision voltage reference, a high voltage input multiplexer and a serial interface. Each LTC6802-1 can measure up to 12 series connected battery cells with an input common mode voltage up to 60V. In addition, multiple LTC6802-1 devices can be placed in series to monitor the voltage of each cell in a long battery string. The unique level-shifting serial interface allows the serial ports of these devices to be daisy-chained without optocouplers or isolators. When multiple LTC6802-1 devices are connected in series they can operate simultaneously, permitting all cell voltages in the stack to be measured within 13ms. To minimize power, the LTC6802-1 offers a measure mode, which simply monitors each cell for overvoltage and undervoltage conditions. A standby mode is also provided. Each cell input has an associated MOSFET switch for discharging overcharged cells. For large battery stack applications requiring individually addressable serial communications, see the LTC6802-2. SPI Interface Features LTC6802-1 Daisy Chain Multiple devices can be connected in serial fashion without digital isolation LTC6802-2 Addressable Parallel addressed SPI interface - each device in a chain communicates with a control processor in parallel via external digital isolators Applications * Electric and Hybrid Electric Vehicles * High Power Portable Equipment * Backup Battery Systems * High Voltage Data Acquisition Systems * Qualified for Automotive Applications * Measures Up to 12 Li-Ion Cells in Series (60V Max) * Stackable Architecture Enables >1000V Systems * 0.25% Maximum Total Measurement Error * 13ms to Measure All Cells in a System * Cell Balancing: * On-Chip Passive Cell Balancing Switches * Provision for Off-Chip Passive Balancing https://elecena.pl/product/793393/12-channel-multicell-battery-monitor-with-daisy-chain-interface-generation-1 2009-01-15 https://elecena.pl/product/793393/12-channel-multicell-battery-monitor-with-daisy-chain-interface-generation-1 2017-10-09 https://elecena.pl/product/793393/12-channel-multicell-battery-monitor-with-daisy-chain-interface-generation-1 2025-01-18