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參數(shù)資料
| 型號(hào)： | DS2761 |
| 英文描述： | High-Precision Li+ Battery Monitor |
| 中文描述： | 高精度、Li+電池監(jiān)視器 |
| 文件頁(yè)數(shù)： | 10/24頁(yè) |
| 文件大小： | 286K |
| 代理商： | DS2761 |
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DS2761
10 of 24
Figure 7.
VOLTAGE REGISTER FORMAT
MSB—Address 0C
LSB—Address 0D
S
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
X
X
X
X
X
MSb
LSb
MSb
LSb
Units: 4.88mV
TEMPERATURE MEASUREMENT
The DS2761 uses an integrated temperature sensor to continually measure battery temperature.
Temperature measurements are placed in the temperature register every 220ms in two’s-complement
format with a resolution of 0.125°C over a range of 127°C. The temperature register format is shown in
Figure 8.
Figure 8. TEMPERATURE REGISTER FORMAT
MSB—Address 18
LSB—Address 19
S
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
X
X
X
X
X
MSb
LSb
MSb
LSb
Units: 0.125 C
PROGRAMMABLE I/O
To use the PIO pin as an output, write the desired output value to the PIO bit in the special feature
register. Writing a 0 to the PIO bit enables the PIO output driver, pulling the PIO pin to V
SS
. Writing a 1
to the PIO bit disables the output driver, allowing the PIO pin to be pulled high or used as an input. To
sense the value on the PIO pin, read the PIO bit. The DS2761 turns off the PIO output driver and sets the
PIO bit high when in sleep mode or when DQ is low for more than 2s, regardless of the state of the
PMOD bit.
POWER SWITCH INPUT
The DS2761 provides a power control function that uses the discharge protection FET to gate battery
power to the system. The
PS
pin, internally pulled to V
DD
through a 1 A current source, is continuously
monitored for a low-impedance connection to V
SS
. If the DS2761 is in sleep mode, the detection of a low
on the
PS
pin causes the device to transition into active mode, turning on the discharge FET. If the
DS2761 is already in active mode, activity on
PS
has no effect other than the latching of its logic low
level in the
PS
bit in the special feature register. The reading of a 0 in the
PS
bit should be immediately
followed by writing a 1 to the
PS
bit to ensure that a subsequent low forced on the
PS
pin is latched into
the
PS
bit.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2761AE | High-Precision Li+ Battery Monitor |
| DS2761AX | High-Precision Li+ Battery Monitor |
| DS2761BE | High-Precision Li+ Battery Monitor |
| DS2761BX-025 | High-Precision Li+ Battery Monitor |
| DS276S | Low Power Transceiver Chip |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2761AE | 功能描述:IC MON BATT LI-ION HP 16-TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
| DS2761AE+ | 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 |
| DS2761AE+025 | 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 |
| DS2761AE+025/T&R | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:IC MON BATT LI-ION HP 16-TSSOP |
| DS2761AE+025/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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