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參數(shù)資料
| 型號： | DS2437 |
| 英文描述： | Smart Battery Monitor |
| 中文描述： | 智能電池監(jiān)視器 |
| 文件頁數(shù)： | 2/31頁 |
| 文件大?。?/td> | 1215K |
| 代理商： | DS2437 |
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DS2437
2 of 31
Applications for the smart battery pack monitor include portable computers, portable/cellular telephones,
and handheld instrumentation battery packs in which it is critical to monitor real-time battery
performance. Used in conjunction with a microcontroller in the battery pack or host system, the DS2437
provides a complete smart battery pack solution that is fully chemistry-independent. The customization
for a particular battery chemistry and capacity is realized in the code programmed into the
microcontroller and DS2437 EEPROM, and only a software revision is necessary should a designer wish
to change battery pack chemistry.
DETAILED PIN DESCRIPTION
PIN
SYMBOL
1
DQ
3
VAD
5
VSENS+
6
VSENS-
8
AGND
9
GND
11
X2
13
X1
16
V
DD
2, 4, 7, 10,
12, 14, 15
DESCRIPTION
Data Input/Out:
for 1-Wire operation: open drain
ADC Input:
input for general purpose A/D
Battery Input:
connection for battery current to be monitored (see text)
Battery Input:
connection for battery current to be monitored (see text)
Analog Ground:
must be at the same potential as GND
Digital Ground:
must be at the same potential as AGND
Crystal Input:
connection for 32.768 kHz for RTC operation
Crystal Input:
connection for 32.768 kHz for RTC operation
V
DD
Pin:
input supply voltage
No Connect
NC
OVERVIEW
The block diagram of Figure 1 shows the seven major components of the DS2437:
1.
64-bit lasered ROM
2.
temperature sensor
3.
battery voltage A/D
4.
battery current A/D
5.
current accumulators
6.
real-time clock
7.
40-byte nonvolatile user memory
Each DS2437 contains a unique 64-bit lasered ROM serial number so that several battery packs can be
charged/monitored by the same host system. Furthermore, other Dallas products featuring the same
1-Wire bus architecture with a 64-bit ROM can reside on the same bus; refer to the Dallas "Automatic
Identification Data Book" for the specifications of these products.
Communication to the DS2437 is via a 1-Wire port. With the 1-Wire port, the memory and control
functions will not be available until the ROM function protocol has been established. The master must
first provide one of four ROM function commands: 1) Read ROM, 2) Match ROM, 3) Search ROM, or 4)
Skip ROM. These commands operate on the 64-bit lasered ROM portion of each device and can singulate
a specific device if many are present on the 1-Wire line as well as indicate to the bus master how many
and what types of devices are present. After a ROM function sequence has been successfully executed,
the memory and control functions are accessible and the master may then provide any one of the six
memory and control function commands.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2438 | Smart Battery Monitor |
| DS2438Z | Smart Battery Monitor |
| DS2442 | Battery Management |
| DS2501 | 1A VERY LOW DROPOUT VOLTAGE REGULATORS |
| DS2502 | 1 kbit Add-Only Memory |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2437K | 制造商:Maxim Integrated Products 功能描述:EVALUATION KIT BATTERY MONITO |
| DS2437S | 功能描述:IC MONITOR SMART BATTERY 16-SSOP 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 |
| DS2437S/T&R | 制造商:Maxim Integrated Products 功能描述:SMART BATTERY MONITOR 16SSOP T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MONITOR SMART BATTERY 16-SSOP |
| DS2437S/T&R/ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS2437S/T&R | 功能描述:IC MONITOR SMART BATTERY 16-SSOP 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 |
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