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參數(shù)資料
| 型號(hào)： | 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)： | 15/29頁 |
| 文件大小： | 351K |
| 代理商： | DS2438 |
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DS2438
15 of 29
Page 0 (00h)
The first page contains the most frequently accessed information of the DS2438, and most locations are
volatile read-only bytes with the exception of the Status/Configuration Register (Byte 0) and the
Threshold Register (Byte 7). The Status/Configuration Register is a nonvolatile read/write byte which
defines which features of the DS2438 are enabled and how they will function. The register is formatted as
follows:
X
ADB
NVB
TB
AD
EE
CA
IAD
MSb
LSb
IAD =
Current A/D Control Bit. “1” = the current A/D and the ICA are enabled, and current
measurements will be taken at the rate of 36.41 Hz; “0” = the current A/D and the ICA have been
disabled. The default value of this bit is a “1” (current A/D and ICA are enabled).
CA =
Current Accumulator Configuration. “1” = CCA/DCA is enabled, and data will be stored and can
be retrieved from page 7, bytes 4-7; “0” = CCA/DCA is disabled, and page 7 can be used for general
EEPROM storage. The default value of this bit is a “1” (current CCA/DCA are enabled).
EE =
Current Accumulator Shadow Selector bit. “1” = CCA/DCA counter data will be shadowed to
EEPROM each time the respective register is incremented; “0”= CCA/DCA counter data will not be
shadowed to EEPROM. The CCA/DCA could be lost as the battery pack becomes discharged. If the CA
bit in the status/configuration register is set to “0”, the EE bit will have no effect on the DS2438
functionality. The default value of this bit is a “1” (current CCA/DCA data shadowed to EEPROM).
AD =
Voltage A/D Input Select Bit. “1” = the battery input (VDD) is selected as the input for the
DS2438 voltage A/D converter; “0” = the general purpose A/D input (VAD) is selected as the voltage
A/D input. For either setting, a Convert V command will initialize a voltage A/D conversion. The default
value of this bit is a “1” (V
DD
is the input to the A/D converter).
TB =
Temperature Busy Flag. “1” = temperature conversion in progress; “0” = temperature conversion
complete.
NVB =
Nonvolatile Memory Busy Flag. “1” = Copy from Scratchpad to EEPROM in progress; “0” =
Nonvolatile memory not busy. A copy to EEPROM may take from 2 ms to 10 ms (taking longer at lower
supply voltages).
ADB =
A/D Converter Busy Flag. “1” = A/D conversion in progress on battery voltage; “0” = conversion
complete, or no measurement being made. An A/D conversion takes approximately 10 ms.
X
=
Don’t care
Bytes 1 and 2 of page 0 contain the last completed temperature conversion in the format described in the
“Operation - Measuring Temperature” section. Bytes 3-4 contain the last completed voltage A/D
conversion result and bytes 5-6 contain the instantaneous current data. Byte 7 contains the Threshold
Register. Refer to the appropriate section for the data format of these locations.
NOTE:
The data in the scratchpad of the status and threshold register will determine the operation of the device.
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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(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(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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