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參數(shù)資料
| 型號(hào)： | DS2720CU |
| 英文描述： | Efficient, Addressable Single-Cell Rechargeable Lithium Protection IC |
| 中文描述： | 高效，尋址單節(jié)可充電鋰電池保護(hù)IC |
| 文件頁(yè)數(shù)： | 13/21頁(yè) |
| 文件大小： | 252K |
| 代理商： | DS2720CU |
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DS2720
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Figure 10.
1-WIRE BUS INTERFACE CIRCUITRY
TRANSACTION SEQUENCE
The protocol for accessing the DS2720 through the 1-Wire port is as follows:
Initialization
Net Address Command
Function Command
Transaction/Data
The sections that follow describe each of these steps in detail.
All transactions of the 1-Wire bus begin with an initialization sequence consisting of a reset pulse
transmitted by the bus master followed by a presence pulse simultaneously transmitted by the DS2720
and any other slaves on the bus. The presence pulse tells the bus master that one or more devices are on
the bus and ready to operate. For more details, see the
1-Wire Signaling
section.
NET ADDRESS COMMANDS
Once the bus master has detected the presence of one or more slaves, it can issue one of the ROM
commands described in the following paragraphs. The name of each net address command is followed by
the 8-bit opcode for that command in square brackets. Figure 11 presents a transaction flowchart of the
ROM commands.
Read Net Address [33h or 39h].
This command allows the bus master to read the DS2720’s 1-Wire net
address. This command can only be used if there is a single slave on the bus. If more than one slave is
present, a data collision occurs when all slaves try to transmit at the same time (open drain produces a
wired-AND result). The RNAOP bit in the status register selects the opcode for this command, with
RNAOP = 0 indicating 33h and RNAOP = 1 indicating 39h.
Match Net Address [55h].
This command allows the bus master to specifically address one DS2720 on
the 1-Wire bus. Only the addressed DS2720 responds to any subsequent function command. All other
slave devices ignore the function command and wait for a reset pulse. This command can be used with
one or more slave devices on the bus.
0.5 A
(typ)
100
MOSFET
Tx
Rx
Rx
Tx
Rx = RECEIVE
Tx = TRANSMIT
+V
PULLUP
(2.0V TO 5.5V)
4.7k
BUS MASTER
DS2720 1-WIRE PORT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2722-F-03 | 900MHz Low-IF 1.5Mbps FSK Transceiver Final Datasheet |
| DS2722-F-04 | 900MHz Low-IF 1.5Mbps FSK Transceiver Final Datasheet |
| DS2722-F-05 | 900MHz Low-IF 1.5Mbps FSK Transceiver Final Datasheet |
| DS2740 | High-Precision Coulomb Counter |
| DS2740B | High-Precision Coulomb Counter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2720CU+ | 制造商:Maxim Integrated Products 功能描述:PROT LI-ION 4.3V 8USOP - Rail/Tube |
| DS2720CU+T&R | 制造商:Maxim Integrated Products 功能描述:PROT LI-ION 4.3V 8USOP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC LITH BATTERY PROTECT 8-USOP |
| DS2720CU+T&R | 功能描述:IC LITH BATTERY PROTECT 8-USOP RoHS:是 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 |
| DS2720K | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Li+ Battery Protector Evaluation Kit |
| DS2722-F-03 | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:900MHz Low-IF 1.5Mbps FSK Transceiver Final Datasheet |
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