LTC2942
Features n Indicates Accumulated Battery Charge and Discharge n High Accuracy Analog Integration n ADC Measures Battery Voltage and Temperature n Integrated Temperature Sensor n High Side Sense n 1% Voltage and Charge Accuracy n ±50m V Sense Voltage Range n SMBus/I2C Interface n Configurable Alert Output/Charge plete Input n 2.7V to 5.5V Operating Range n Quiescent Current Less than 100µA n Small 6-Pin 2mm × 3mm DFN package
Applications n Low Power Handheld Products n Cellular Phones n MP3 Players n Cameras n GPS
LTC2942 Battery Gas Gauge with Temperature, Voltage Measurement
Description
The LTC®2942 measures battery charge state, battery voltage and chip temperature in handheld PC and portable product applications. Its operating range is perfectly suited for single-cell Li-Ion batteries. A precision coulomb counter integrates current through a sense resistor between the battery’s positive terminal and the load or charger. Battery voltage and on-chip temperature are...
