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參數(shù)資料
| 型號： | AAT3681 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger |
| 中文描述： | USB端口或AC適配器鋰離子電池充電器 |
| 文件頁數(shù)： | 8/15頁 |
| 文件大?。?/td> | 329K |
| 代理商： | AAT3681 |
AAT3681
USB Port or AC Adapter
Lithium-Ion/Polymer Battery Charger
8
3681.2007.01.1.2
Functional Block Diagram
Charge
Control
Current
Compare
Reverse Blocking
CV/
Precharge
Constant
Current
ADP
BAT
ISET
UVLO
Over-
Temperature
Protection
Charge
Status
STAT
GND
EN
Functional Description
The AAT3681 is a high performance battery charg-
er designed to charge single cell lithium-ion/poly-
mer batteries with up to 300mA of current from an
external power source. It is a stand-alone charging
solution, with just one external component required
for complete functionality. The AAT3681 precisely
regulates battery charge voltage and current for
4.2V lithium-ion/polymer battery cells.
The adapter/USB charge input constant current
level can be programmed up to 300mA for rapid
charging applications. The AAT3681 is rated for
operation from -40°C to +85°C. In the event of oper-
ating ambient temperatures exceeding the power
dissipation abilities of the device package for a given
constant current charge level, the charge control will
enter into thermal limit.
A status monitor output pin is provided to indicate
the battery charge state by directly driving one
external LED.
Device junction temperature and charge state are
fully monitored for fault conditions. In the event of
an over-voltage or over-temperature failure, the
device will automatically shut down, protecting the
charging device, control system, and the battery
under charge.
Charging Operation
The AAT3681 has four basic modes for the battery
charge cycle: pre-conditioning/trickle charge; con-
stant current/fast charge; constant voltage; and
end of charge (see Figure 1). (AAT3681-1 does not
have trickle charge.)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT3681AIJS-4.1-5-T1 | 功能描述:電池管理 500mA USB Port/Adptr Li-Ion/Ply Batt Chgr 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 |
| AAT3681AIJS-4.1-T1 | 功能描述:電池管理 500mA USB Port/Adptr Li-Ion/Ply Batt Chgr 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 |
| AAT3681AIJS-4.2-1-T1 | 功能描述:IC BATT CHG LI-ION SC70JW-8 制造商:skyworks solutions inc. 系列:- 包裝:* 零件狀態(tài):上次購買時(shí)間 電池化學(xué):鋰離子/聚合物 電池?cái)?shù):1 電流 - 充電:恒流 - 可編程 可編程特性:- 故障保護(hù):超溫，過壓，短路 充電電流 - 最大值:500mA 電池組電壓:4.2V 電壓 -?供電（最高）:7.5V 接口:USB 工作溫度:-40°C ~ 85°C（TA） 封裝/外殼:* 供應(yīng)商器件封裝:* 標(biāo)準(zhǔn)包裝:1 |
| AAT3681AIJS-4.2-2-T1 | 制造商:Skyworks Solutions Inc 功能描述:POWER MANAGEMENT IC |
| AAT3681AIJS-4.2-4-T1 | 功能描述:電池管理 500mA USB Port/Adptr Li-Ion/Ply Batt Chgr 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 |
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