High Voltage Automotive Battery Stack Monitor Achieves 0.04% Measurement Accuracy, Lower Cost & Improved Safety Features
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High Voltage Automotive Battery Stack Monitor Achieves 0.04% Measurement Accuracy, Lower Cost & Improved Safety Features

Linear Technology announces the LTC6811 high voltage battery stack monitor, a drop-in replacement for the LTC6804 with higher performance and 25% lower price. The LTC6811 is a complete battery measuring IC for hybrid/electric vehicles that incorporates a deep buried Zener voltage reference, high voltage multiplexers, 16-bit delta-sigma ADCs and a 1Mbps isolated serial interface. An LTC6811 can measure up to 12 series-connected battery cell voltages with better than 0.04% accuracy. With 8 programmable 3rd order low pass filter settings, the LTC6811 provides outstanding noise reduction. In the fastest ADC mode, all cells can be measured within 290µsec.

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