- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376969 > DS2438 Smart Battery Monitor PDF資料下載
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)： | 17/29頁 |
| 文件大?。?/td> | 351K |
| 代理商： | DS2438 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁當前第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁
DS2438
17 of 29
1-Wire BUS SYSTEM
The 1-Wire bus is a system which has a single bus master and one or more slaves. The DS2438 behaves
as a slave. The discussion of this bus system is broken down into three topics: hardware configuration,
transaction sequence, and 1-Wire signaling (signal types and timing).
HARDWARE CONFIGURATION
The 1-Wire bus has only a single line by definition; it is important that each device on the bus be able to
drive it at the appropriate time. To facilitate this, each device attached to the 1-Wire bus must have open
drain or 3-state outputs. The 1-Wire port of the DS2438 (DQ pin) is open drain with an internal circuit
equivalent to that shown in Figure 8. A multidrop bus consists of a 1-Wire bus with multiple slaves
attached. The 1-Wire bus requires a pull-up resistor of approximately 5 k
.
HARDWARE CONFIGURATION
Figure 8
The idle state for the 1 wire bus is high. If for any reason a transaction needs to be suspended, the bus
MUST be left in the idle state if the transaction is to resume. Infinite recovery time can occur between
bits so long as the 1-Wire bus is in the inactive (high) state during the recovery period. If this does not
occur and the bus is left low, all components on the bus will be reset. See Wire-1 Reset Pulse Timing
(Figure 9).
TRANSACTION SEQUENCE
The protocol for accessing the DS2438 via the 1-Wire port is as follows:
Initialization
ROM Function Command
Memory Function Command
Transaction/Data
INITIALIZATION
All transactions on the 1-Wire bus begin with an initialization sequence. The initialization sequence
consists of a reset pulse transmitted by the bus master followed by presence pulse(s) transmitted by the
slave(s). The presence pulse lets the bus master know that the DS2438 is on the bus and is ready to
operate. For more details, see the “1-Wire Signaling” section.
相關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 |
相關代理商/技術參數(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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。