The DS2781 remains in production, however, for new projects, we recommend ModelGauge m5 MAX17215 fuel gauge.The DS2781 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 available capacity registers report a conservative estimate of the amount of charge that can be removed given the current temperature, discharge rate, stored charge and application parameters. Capacity estimation is reported in milliamp hours remaining and percentage of full.
|Part Number||Functions||Battery Type||Interface||User Data Storage|
|Parameters Measured||Fuel Gauge Algorithm||Applications||VSUPPLY|
|DS2781||Fuel Gauge||1-2 Cell Li-Ion||1-Wire||40 EEPROM|
|-40 to +85||$3.12 @1k|
|See All Battery Monitors, Protectors, and Selectors (51)|
| Pricing Notes: |
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C|
|App Note||5507||Understanding the DS1WM Synthesizable 1-Wire Bus Master|
|App Note||4188||Calibrating the Current Offset Bias (COB) Register for the DS278x Family of Fuel Gauges|
|App Note||4114||Calibrating RSGAIN for the DS278x Family of Fuel Gauges|
|App Note||3727||Storing Battery Fuel Gauge Parameters in the DS2781|