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DS2741 - Current Monitor and Accumulator

General Description

The DS2741 current monitor/accumulator is a complete current-sensing, measuring, and accumulation device tailored for cost-sensitive, battery-powered applications in a small 3mm x 3mm TDFN package.

Key Features

  • Complete, Low-Cost, Integrated Current-Sensing and Accumulation Solution with Serial Digital Output.
  • On-Board 38mΩ Sense Resistor.
  • Current Measurement: Signed 10-Bit Bidirectional Measurement ±2.5A Dynamic Range 1% Error at +25°C 2% Error Over Temperature.
  • Current Accumulation: 0.247mAhr LSB ±8.1Ahrs Full-Scale Range.
  • Industry-Standard I2C Interface with FactoryProgrammable Slave Address.
  • 2.5V to 4.5V Single-Supply Operation.
  • Low-Po.

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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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19-4683; Rev 1; 7/09 www.DataSheet4U.com Current Monitor and Accumulator with Integrated Sense Resistor General Description The DS2741 current monitor/accumulator is a complete current-sensing, measuring, and accumulation device tailored for cost-sensitive, battery-powered applications in a small 3mm x 3mm TDFN package. As a result, the DS2741 is a key component in battery-charge control and remaining capacity-estimation applications. Through its I2C interface, the DS2741 gives the host system access to current measurement and accumulation registers. The 7-bit slave address is factory programmable, allowing up to 128 devices to be individually addressed by the host system.