Complete lithium-ion Battery Monitor in 3mm x 3mm Package
Maxim has introduced the DS2741 current monitor/accumulator for cost-sensitive, lithium-ion (Li+) applications. The industry's first battery-monitoring IC to incorporate a high-side, current-sense resistor, this 3mm x 3mm device saves valuable real estate in space-constrained applications. Its unique topology allows users to connect the DS2741 directly to the power source to detect downstream failures and trigger appropriate corrective action.Addi
In order to support adjustments to battery-capacity estimates based on temperature, the DS2741 integrates a temperature sensor that measures temperatures over the entire -20 degrees Celsius to +70 degrees Celsius operating range with a resolution of ±1 degree Celsius.
The device consumes 60microamps (typ) during active operation and only 1microamp (typ) in low-power sleep mode, which increases battery runtime by minimizing drain on the battery.