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參數(shù)資料
| 型號： | DS2740 |
| 元件分類： | 通用總線功能 |
| 英文描述： | High-Precision Coulomb Counter |
| 中文描述： | 高精度庫侖計 |
| 文件頁數(shù)： | 2/15頁 |
| 文件大?。?/td> | 248K |
| 代理商： | DS2740 |
DS2740
2 of 15
Table 1.
ORDERING INFORMATION
PART
MARKING
DS2740
DS2740
DS2740B
DS2740B
PIN-PACKAGE
DS2740U
DS2740U/T&R
DS2740BU
DS2740BU/T&R
15-Bit Current Resolution, MAX
15-Bit Current Resolution, MAX, Tape-and-Reel
13-Bit Current Resolution, MAX
13-Bit Current Resolution, MAX, Tape-and-Reel
DESCRIPTION
The DS2740 provides high-precision current-flow measurement data to support battery-capacity
monitoring in cost-sensitive applications. Current is measured bidirectionally over a dynamic range of 15
bits (DS2740U) or 13 bits (DS2740UB), with the net flow accumulated in a separate 16-bit register.
Through its 1-Wire interface, the DS2740 allows the host system read/write access to status and current
measurement registers. Each device has a unique factory-programmed 64-bit net address that allows it to
be individually addressed by the host system, supporting multibattery slot operation. The interface can be
operated with standard or overdrive timing.
Although the DS2740 is primarily intended for location on the host system, it is also suited for mounting
in the battery pack. The DS2740 and FuelPack algorithms, along with host measurements of
temperature and voltage, form a complete and accurate solution for estimating remaining capacity.
Figure 1.
BLOCK DIAGRAM
1-WIRE
INTERFACE
AND
ADDRESS
DQ
PIO
TIMEBASE
CURRENT
ACCUMULATED
CURRENT
STATUS/CONTROL
CHIP
GROUND
SNS
IS2
V
SS
IS1
15-Bit + Sign
ADC
R
IS
10 k
R
IS
10 k
V
DD
FuelPack is a trademark of Dallas Semiconductor.
相關PDF資料 |
PDF描述 |
|---|---|
| DS2740B | High-Precision Coulomb Counter |
| DS2740BU | High-Precision Coulomb Counter |
| DS2740U | High-Precision Coulomb Counter |
| DS2760E-025 | High Precision Li-Ion Battery Monitor |
| DS2760XA-025 | High Precision Li-Ion Battery Monitor |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS2740B | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Precision Coulomb Counter |
| DS2740BU | 制造商:Maxim Integrated Products 功能描述:HI PRECISION COUL CNTR USOP 8 PIN - Rail/Tube |
| DS2740BU/R | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Precision Coulomb Counter |
| DS2740BU/T | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:High-Precision Coulomb Counter |
| DS2740BU/T&R | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
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