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DS2790 Datasheet Programmable 1-Cell Li-Ion Fuel Gauge and Protector

Manufacturer: Maxim Integrated (now Analog Devices)

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General Description

The DS2790 provides a complete fuel gauging and protection solution for single cell Li-Ion battery packs.

A low-power 16-bit MAXQ20 microcontroller with generous program and data memory, combined with an accurate measurement system for battery current, voltage, and temperature provide the ideal platform for customized fuelgauge algorithms.

The 2-wire 2 interface provides an I C*- or SMBusä-compatible communication path between the host and battery pack, while providing password protected programming of the fuel-gauging firmware.

Overview

www.DataSheet4U.com DS2790 Programmable 1-Cell Li-Ion Fuel Gauge and Protector www.maxim-ic.

Key Features

  • Accurate Current Measurement for Coulomb Counting (Current Accumulation) 1.5% ±4µV over ± 64mV Input Range 1.5% ±267µA over ±4.2A Range Using an External 15mW Series Resistor High Resolution Current Reporting 12-bit + Sign Average Every 0.88ms 15-bit + sign Average Every 2.8s Voltage Measurement 10-bit Average Temperature Measurement 10-bit Using On-Chip Sensor 16-bit MAXQ20 Low Power Microcontroller Efficient C-Language Programming 8k words Total Program Memory - 4k Words EEPROM Program M.

More Datasheets from Maxim Integrated (now Analog Devices)

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