LTC6802-1
Multicell
Battery Stack Monitor
FEATURES DESCRIPTION n The LTCВ®6802-1 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. n 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
Two Thermistor Inputs Plus On-Board
Temperature Sensor
1MHz Daisy-Chainable Serial Interface
High EMI Immunity
Delta Sigma Converter with Built-In Noise Filter …