DS2741 Current Monitor and Acc-广州唯朴科技有限公司

DS2741 Current Monitor and Acc

发布时间：2008-10-22

浏览次数：726 次

DS2741 Current Monitor and Accumulator with Integrated Sense Resistor

DS2741概述

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.

DS2741关键特性

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)

DS2741 pdf datasheet (Current Monitor and Accumulator with Integrated Sense Resistor)

DS2741应用/使用

	Battery Monitor/Rechargers
	蜂窝电话
	PDA

DS2741应用电路