DESCRIPTION
The LTC®6801 is a multicell battery monitoring IC incorporating a 12-bit ADC, a precision independent voltage reference, sampled comparator, and a high voltage input multiplexer. The LTC6801 can monitor as many as 12 series connected battery cells for overvoltage, undervoltage, and overtemperature conditions, indicating whether the cells are within specified parameters. The LTC6801 generates a clock output when no fault conditions exist. Differential clocking provides high noise immunity and ensures that battery stack fault conditions cannot be hidden by frozen bits or short circuit conditions.

FEATURES
■ Monitors Up to 12 Li-Ion Cells in Series (60V Max)
■ Stackable Architecture Enables > 1000V Systems
■ Adjustable Overvoltage and Undervoltage
   Detection
■ Self Test Features Guarantee Accuracy
■ Robust Fault Detection Using Differential Signals
■ Simple Pin-Strapped Confi guration Allows Battery
   Monitoring without a Microcontroller
■ 15ms to Monitor All Cells in a System
■ Programmable Response Time
■ Two Temperature Monitor Inputs
■ Low Power Idle Mode
■ 36-Lead SSOP Package

APPLICATIONS
■ Redundant Battery Monitor
■ Hybrid Electric Vehicles
■ Battery Backup Systems
■ Power Systems Using Multiple Battery Cells