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DS2741
Current Monitor and Accumulator with Integrated Sense Resistor
High-Side Current Sensing Allows Detection of Downstream Failure and Avoids Ground Disturbance
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Key Features
Applications/Uses
Simplified Block Diagram
Technical Docs
| Data Sheet | Current Monitor and Accumulator with Integrated Sense Resistor | Jul 27, 2009 |
Support & Training
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Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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 Factory-Programmable Slave Address
- 2.5V to 4.5V Single-Supply Operation
- Low-Power Consumption:
- Active Current: 60µA (typ)
- Sleep Current: 1µA (typ)
- -20°C to +70°C Operating Range
- 14-Pin TDFN (3mm x 3mm x 0.8mm)
Applications/Uses
- Battery Monitor/Rechargers
- Cell Phones
- PDAs
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.
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.
Technical Docs
| Data Sheet | Current Monitor and Accumulator with Integrated Sense Resistor | Jul 27, 2009 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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