Dallas coulometer IC calculating the residual capacity of lithium battery

Dallas semiconductor has developed can be used independently of coulometer ICDS2781.The chip directly from 2.5 V to 10 V power supply, can calculate the lithium and 1 or 2 day Lithium polymer battery The remaining capacity. DS2781 can provide 16 current test, 11 voltage and temperature test, on a chip of nonvolatile memory can record The batteryThe characteristics of data and application parameters, the performance of the IC can use these data to calculate the soc of the battery. In addition to its load algorithm and a status report function can reduce the chip and the interaction between the host, at the same time the software development is extremely simple. A low resistance sensor DS2781 by calculation

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Dallas semiconductor has developed can be used independently of coulometer ICDS2781.The chip directly from 2.5 V to 10 V power supplies, can calculate section 1 or 2 lithium and lithium Polymer battery the remaining capacity.

DS2781 can provide 16 current tests, 11 voltages and temperature test, on a chip of nonvolatile memory can record data and application of the characteristics of the battery performance parameters, the IC can use these data to calculate the soc of the battery. In addition to its load algorithm and a status report function can reduce the chip and the interaction between the host, at the same time the software development is extremely simple.

DS2781 by calculating a low resistance sensor resistance pressure drop to achieve the current test, programming can compensate the error caused by sensor resistance is affected by temperature, thus using low cost sensor resistance can achieve high precision test. In order to further to improve the current test accuracy, DS2781 also provides automatic offset correction and user programmable current boost compensation function.

DS2781 TSSOP package of electricity meter adopts lead-free 8 pin, order quantity reach more than 1000 pieces of the unit price is $2.90 (for reference only).

Dallas semiconductor has developed can be used independently of coulometer ICDS2781.The chip directly from 2.5 V to 10 V power supplies, can calculate section 1 or 2 lithium and lithium polymer battery remaining capacity.

DS2781 can provide 16 current test, 11 voltage and temperature test, on a chip of nonvolatile memory can record data and application of the characteristics of the battery performance parameters, the IC can use these data to calculate the soc of the battery. In addition to its load algorithm and a status report function can reduce the chip and the interaction between the host, at the same time the software development is extremely simple.

DS2781 by calculating a low resistance sensor resistance pressure drop to achieve the current test, programming can compensate the error caused by sensor resistance is affected by temperature, thus using low cost sensor resistance can achieve high precision test. In order to further to  improve the current test accuracy, DS2781 also provides automatic offset correction and user programmable current boost compensation function.

DS2781 TSSOP package of electricity meter adopts lead-free 8 pin, order quantity reach more than 1000 pieces of the unit price are $2.90 (for reference only).

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