Product Summary

The DS2780E is a Standalone Fuel Gauge IC. It measures voltage, temperature and current, and estimates available capacity for rechargeable Lithium Ion and Lithium Ion Polymer batteries. Cell characteristics and application parameters used in the calculations are stored in on-chip EEPROM. The DS2780E reports a conservative estimate of the amount of charge that can be removed given the current temperature, discharge rate, stored charge and application parameters. The applications of the DS2780E include: Digital Still Cameras, Sub-Notebook Computers, Handheld PC Data Terminals, 3G Multimedia Wireless Handsets.

Parametrics

DS2780E absolute maximum ratings: (1)Voltage Range on Any Pin Relative to VSS: -0.3V to +6.0V; (2)Voltage on VIN Relative to VSS: -0.3V to (VDD + 0.3V); (3)Operating Temperature Range: -40℃ to +85℃; (4)Storage Temperature Range: -55℃ to +125℃.

Features

DS2780E features: (1)Precision Voltage, Temperature, and Current Measurement System; (2)Internal Time Base is Accurate and Temperature Stable; (3)Absolute and Relative Capacity Estimated from Coulomb Count, Discharge Rate, Temperature and Battery Cell Characteristics; (4)Accurate Warning of Low Battery Conditions; (5)Automatic Backup of Coulomb Count and Age Estimation to Nonvolatile (NV) EEPROM; (6)Gain and Tempco Calibration Allows the Use of Low-Cost Sense Resistors; (7)24-Byte Battery/Application Parameter EEPROM; (8)16-Byte User EEPROM; (9)Unique ID and Multidrop 1-Wire Interface; (10)Tiny 8-pin TSSOP & 10-pin TDFN Package Embeds Easily in Battery Packs Using Thin Prismatic Cells.

Diagrams

DS2780E diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
DS2780E+
DS2780E+
Maxim Integrated Products
Battery Management Stand-Alone Fuel Gauge
Data Sheet
0-1: $4.57
1-25: $3.07
25-50: $2.23
50-100: $2.20
DS2780E+T&R
DS2780E+T&R
Maxim Integrated Products
Battery Management Stand-Alone Fuel Gauge
Data Sheet
0-2080: $1.85
2080-2500: $1.85