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參數(shù)資料
| 型號(hào)： | DS2720BU |
| 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)： | 8/21頁(yè) |
| 文件大?。?/td> | 252K |
| 代理商： | DS2720BU |
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DS2720
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MEMORY
The DS27xx family of products is organized into a 256-byte linear address space with registers for
instrumentation, status, and control in the lower 32 bytes, with lockable EEPROM memory occupying
portions of the remaining address space. All EEPROM memory is general purpose except address 31h,
which should be written with the default values for the status register.
EEPROM memory is shadowed by RAM to eliminate programming delays between writes and to allow
the data to be verified by the host system before being copied to EEPROM. All reads and writes to/from
EEPROM memory in fact access the shadow RAM. In unlocked EEPROM blocks, the write data
command updates shadow RAM. In locked EEPROM blocks, the write data command is ignored. The
copy data command copies the contents of shadow RAM to EEPROM in an unlocked block of EEPROM
but has no effect on locked blocks. The recall data command copies the contents of a block of EEPROM
to shadow RAM regardless of whether the block is locked or not.
Table 4.
MEMORY MAP
ADDRESS (hex)
00
01
02–06
07
08
09–1F
20–23
24–2F
30–33
DESCRIPTION
READ/WRITE
R/W
R
—
R
R/W
—
R/W
(1)
—
R/W
(1)
Protection Register
Status Register
Reserved
EEPROM Register
Special Feature Register
Reserved
EEPROM, Block 0
Reserved
EEPROM, Block 1
(31 = Status Register Initialization)
Reserved
Each EEPROM block is read/write until locked by the LOCK command, after which it is read-only.
34–FF
—
(1)
PROTECTION REGISTER
The protection register consists of flags that indicate protection circuit status and switches that give
conditional control over the charging and discharging paths. Bits OV, UV, and DOC are set when
corresponding protection conditions occur and remain set until cleared by the host system. The format of
the protection register is shown in Figure 4. The function of each bit is described in detail in the following
paragraphs.
Figure 4.
PROTECTION REGISTER FORMAT
Address 00
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
OV
UV
0
DOC
CC
DC
CE
DE
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| DS2720CU | Efficient, Addressable Single-Cell Rechargeable Lithium Protection IC |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2720BU/T&R | 制造商:Maxim Integrated Products 功能描述:SGL CL LI-LON PROT VOV-4.35 USOP TR - Tape and Reel |
| DS2720BU+ | 功能描述:IC LITH BATTERY PROTECT 8-USOP RoHS:是 類(lèi)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(lèi)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(chēng):MCP73831T-2ACI/OTCT |
| DS2720BU+T&R | 制造商:Maxim Integrated Products 功能描述:PROT LI-ION 4.35V 8USOP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC LITH BATTERY PROTECT 8-USOP |
| DS2720BU+T&R | 功能描述:IC LITH BATTERY PROTECT 8-USOP RoHS:是 類(lèi)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(lèi)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(chēng):MCP73831T-2ACI/OTCT |
| DS2720CU | 制造商:Maxim Integrated Products 功能描述:SINGLE CELL LI-ION PROT IC VOV=4.30 - Rail/Tube |
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