Additionally, the new IC avoids the ground disturbance associated with low-side, current-sense designs. The DS2741 provides a complete current-sensing, measuring, and accumulation solution tailored for battery-charge-control and remaining-capacity-estimation applications. The device is suitable for handheld wireless products such as multimedia players, mobile phones, PDAs, and digital cameras as well as for automotive/telematics applications.
To support adjustments to battery-capacity estimates based on temperature, the DS2741 integrates a temperature sensor that measures temperatures over the entire -20°C to +70°C operating range with a resolution of ±1°C.
The device consumes 60µA (typ) during active operation and only 1µA (typ) in low-power sleep mode, which increases battery runtime by minimizing drain on the battery.
The DS2741 is offered in a space-saving, 3mm x 3mm, 14-pin TDFN package. Prices start at $1.45 (1000-up, FOB USA).
Maxim is a US-based manufacturer of linear and mixed-signal integrated circuits.
