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參數資料
| 型號： | LM3658 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Dual Source USB/AC Li Chemistry Charger IC for Portable Applications |
| 中文描述： | 雙源的USB / AC充電器李化學便攜式應用 |
| 文件頁數： | 1/13頁 |
| 文件大?。?/td> | 663K |
| 代理商： | LM3658 |
LM3658
Dual Source USB/AC Li Chemistry Charger IC for
Portable Applications
General Description
The LM3658 is a single chip charger IC designed for hand-
held applications. It can safely charge and maintain a single
cell Li-Ion/Polymer battery operating from an AC wall
adapter or USB power source. Input power source selection
of USB/AC is automatic. With both power sources present,
the AC power source has priority. Charge current is pro-
grammed through an external resistor when operating from
an AC wall adapter allowing charge currents from 50 mA to
1000 mA. When the battery is charged using USB power,
charge currents of 100 mAor 500 mAare pin-selectable. The
termination voltage is controlled to within
±
0.35% of 4.2V.
The LM3658 requires few external components and inte-
grates internal power FETs, reverse current protection and
current sensing. The internal power FETs are thermally regu-
lated to obtain the most efficient charging rate for a given
ambient temperature.
The LM3658 operates in five modes: pre-qualification mode,
constant-current
mode,
constant-voltage
mode,
mode and maintenance mode. Optimal battery management
is obtained through thermal regulation, battery temperature
measurement and multiple safety timers. The LM3658 pro-
vides two open-drain outputs for LED status indication or
connection to GPIOs.
top-off
Features
n
Integrated power FETs with thermal regulation
n
Charges from either an AC wall adapter or USB power
source with automatic source selection
n
50 mA to 1000 mA charge currents using AC wall
adapter
n
Pin-selectable USB charge currents of 100 mA or
500 mA
n
Continuous battery temperature monitoring
n
Built-in multiple safety timers
n
Charge status indication
n
Continuous over-current and temperature protection
n
Near-depleted battery pre-conditioning
n
Sleep mode with ultra low quiescent current
n
On-board Kelvin-sensing achieves
±
0.35% termination
accuracy
n
Maintenance mode with automatic recharge
n
Thermally enhanced 3 mm x 3 mm LLP package
Applications
n
Smartphones
n
Digital still cameras
n
PDAs
n
Hard Drive and flash-based MP3 players
n
USB-powered devices
Typical Application
20128201
May 2005
L
2005 National Semiconductor Corporation
DS201282
www.national.com
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM3658SD | 功能描述:電池管理 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 |
| LM3658SD/NOPB | 功能描述:電池管理 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 |
| LM3658SD-A | 制造商:Texas Instruments 功能描述:Battery Charger Li-Ion/Li-Pol 0mA to 1000mA 4.2V 10-Pin LLP EP T/R 制造商:Texas Instruments 功能描述:BATT CHARGER, LI ION USB/AC, LLP-10 制造商:Texas Instruments 功能描述:Dual Source USB/AC Li Charger,LM3658SD-A |
| LM3658SD-A/NOPB | 功能描述:電池管理 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 |
| LM3658SD-AEV | 功能描述:電源管理IC開發(fā)工具 LM3658 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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