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DS2784 - 1-Cell Stand-Alone Fuel Gauge

General Description

The DS2784 operates from 2.5V to 4.6V for integration in battery packs using a single lithium-ion (Li+) or Li+ polymer cell.

Available capacity is reported in mAh and as a percentage.

Key Features

  • Precision Voltage, Temperature, and Current Measurement System Available Capacity Estimated from Coulomb Count, Discharge Rate, Temperature, and Cell Characteristics Estimates Cell Aging Using Learn Cycles Uses Low-Cost Sense Resistor Allows for Calibration of Gain and Temperature Coefficient Li+ Safety Circuitry.
  • Overvoltage, Undervoltage, Overcurrent, Short-Circuit Protection Programmable Safety Thresholds for Ov.

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Other Datasheets by Maxim Integrated (now Analog Devices)

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DS2780 Standalone Fuel Gauge
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DS2786 Standalone OCV-Based Fuel Gauge
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com DS2784 1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication www.maxim-ic.com GENERAL DESCRIPTION The DS2784 operates from 2.5V to 4.6V for integration in battery packs using a single lithium-ion (Li+) or Li+ polymer cell. Available capacity is reported in mAh and as a percentage. Safe operation is ensured with the included Li+ protection function and SHA-1-based challenge-response authentication. Precision measurements of voltage, temperature, and current, along with cell characteristics and application parameters are used to estimate capacity. The available capacity registers report a conservative estimate of the amount of charge that can be removed given the current temperature and discharge rate.