Power Electronics / Power Management


High-voltage battery monitor

9 November 2011 Power Electronics / Power Management

The LTC6803 from Linear Technology is a high-voltage battery monitor for hybrid/electric vehicle and other high-voltage battery systems. It is a complete battery measuring IC that includes a 12-bit ADC, a precision voltage reference, a high-voltage input multiplexer and a serial interface. Each IC can measure up to 12 individual battery cells in series and multiple ICs can be stacked in series without optocouplers or isolators, permitting precision voltage monitoring of every cell in long strings of series-connected batteries. The maximum total measurement error of the LTC6803 is guaranteed to be less than 0,25% from -40°C to 125°C.



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