LTC6802IG-1#PBF - 

Battery Li-Ion Stack Fault Monitor IC, 12 Cells, Clock Output, 5 V to 60 V supply, SSOP-44

LTC6802IG-1#PBF - Battery Li-Ion Stack Fault Monitor IC, 12 Cells, Clock Output, 5 V to 60 V supply, SSOP-44

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Product Overview

The LTC6802IG-1#PBF 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 battery monitor offers a measure mode, which simply monitors each cell for overvoltage and under voltage conditions. A standby mode is also provided. Each cell input has an associated MOSFET switch for discharging overcharged cells.
  • Stackable architecture enables >1000V systems
  • 0.25% Maximum total measurement error
  • 13ms to Measure all cells in a system
  • On-chip passive cell balancing switches
  • Provision for off-chip passive balancing
  • Two thermistor inputs plus on board temperature sensor
  • 1MHz Daisy-chainable serial interface
  • High EMI immunity
  • Delta sigma converter with built-in noise filter
  • Open wire connection fault detection
  • Low power modes


Industrial, Automotive, Power Management

Product Information

MSL 1 - Unlimited
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