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參數(shù)資料
| 型號： | DS2438 |
| 英文描述： | Smart Battery Monitor |
| 中文描述： | 智能電池監(jiān)視器 |
| 文件頁數(shù)： | 4/29頁 |
| 文件大?。?/td> | 351K |
| 代理商： | DS2438 |
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DS2438
4 of 29
Temperature Register Format
Table 1
2
-1
2
-2
2
-3
2
-4
2
-5
0
0
0
LSB
MSb
(unit = °C)
LSb
S
2
6
2
5
2
4
2
3
2
2
2
1
2
0
MSB
TEMPERATURE
+125°C
+25.0625°C
+0.5°C
0°C
-0.5°C
-25.0625°C
-55°C
DIGITAL OUTPUT (Binary)
01111101 00000000
00011001 00010000
00000000 10000000
00000000 00000000
11111111 10000000
11100110 11110000
11001001 00000000
DIGITAL OUTPUT (Hex)
7D00h
1910h
0080h
0000h
FF80h
E6F0h
C900h
OPERATION-MEASURING BATTERY VOLTAGE
The on-board analog-to-digital converter (ADC) has 10 bits of resolution and will perform a conversion
when the DS2438 receives a command protocol (Convert V) instructing it to do so. The result of this
measurement is placed in the 2-byte Voltage Register. The range for the DS2438 ADC is 0 volt to
10 volt; this range is suitable for NiCd or NiMH battery packs up to six cells, and for lithium ion battery
packs of two cells. The full-scale range of the ADC is scaled to 10.23 volt, resulting in a resolution of
10 mV.
While the ADC has a range that extends down to 0 volt, it is important to note that the battery voltage can
also be the supply voltage to the DS2438. As such, the accuracy of the ADC begins to degrade below
battery voltages of 2.4 volt, and the ability to make conversions is limited by the operating voltage range
of the DS2438.
Voltage is expressed in this register in scaled binary format, as outlined in Table 2. Note that while codes
exist for values below 2.4 volt, accuracy of the ADC and the limitation on the DS2438’s supply voltage
make it unlikely that these values would be used in actual practice. See “Memory Map” section for the
Voltage Register address location.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2438Z | Smart Battery Monitor |
| DS2442 | Battery Management |
| DS2501 | 1A VERY LOW DROPOUT VOLTAGE REGULATORS |
| DS2502 | 1 kbit Add-Only Memory |
| DS2502P-E48 | 48-Bit Node Address Chip |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2438AZ | 功能描述:IC MONITOR SMART BATTERY 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝:1 系列:- 功能:充電管理 電池化學: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 供應商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
| DS2438AZ/T&R | 制造商:Maxim Integrated Products 功能描述:SMART BATTERY MONITOR 8-SOIC/T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MONITOR SMART BATTERY 8-SOIC |
| DS2438AZ/T&R | 功能描述:IC MONITOR SMART BATTERY 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝:1 系列:- 功能:充電管理 電池化學: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 供應商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
| DS2438AZ+ | 功能描述:電池管理 Smart Battery Monitor 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 |
| DS2438AZ+ | 制造商:Maxim Integrated Products 功能描述:IC BATTERY MONITOR LI-ION 10V SOIC-8 |
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