DS2781G+

The DS2781G+ is a 1-cell or 2-cell stand-alone fuel gauge IC in 10 pin TDFN package. This device measures voltage, temperature and current and estimates available capacity for rechargeable lithium-ion and lithium-ion polymer batteries. Cell stack characteristics and application parameters used in the calculations are stored in on-chip EEPROM. The capacity registers report a conservative estimate of the amount of charge from all application parameters. Capacity estimation is reported in milliamp hours remaining and percentage of full.

• Supply voltage range is 2.5V to 10V
• Operating temperature range from -40°C to 85°C
• Accurate temperature stable internal timebase
• Accurate warning of low battery conditions
• Automatic backup of coulomb count and age estimation to non-volatile (NV) EEPROM
• Gain and temperature coefficient calibration allows the use of low-cost sense resistors
• 24byte parameter EEPROM
• 16byte user EEPROM
• Unique ID and multidrop 1-wire interface

Applications

Power Management, Portable Devices

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party