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參數(shù)資料
| 型號： | LM3658SD |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Dual Source USB/AC Li Chemistry Charger IC for Portable Applications |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, DSO10 |
| 封裝： | 3 X 3 MM, LLP-10 |
| 文件頁數(shù)： | 10/13頁 |
| 文件大?。?/td> | 663K |
| 代理商： | LM3658SD |
LM3658 Operation Description
(Continued)
The thermal advantage of the LLP package is fully realized
only when the exposed die attach pad is soldered down to a
thermal land on the PCB board with thermal vias planted
underneath the thermal land. Based on thermal analysis of
the LLP package, the junction-to-ambient thermal resistance
(
θ
) can be improved by a factor of two when the die attach
pad of the LLP package is soldered directly onto the PCB
with thermal land and thermal vias, as opposed to an alter-
native with no direct soldering to a thermal land. Typical pitch
and outer diameter for thermal vias are 1.27 mm and
0.33 mm respectively. Typical copper via barrel plating is 1
oz, although thicker copper may be used to further improve
thermal performance. The LM3658 die attach pad is con-
nected to the substrate of the IC and therefore, the thermal
land and vias on the PCB board need to be connected to
ground (GND pin).
For more information on board layout techniques, refer to
Application Note 1187 “Leadless Lead Frame Package
(LLP).” This application note also discusses package han-
dling, solder stencil and the assembly process.
L
www.national.com
10
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(chǎn)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 |
| LM3658SD-AEV/NOPB | 功能描述:電池管理 LM3658 Eval Board 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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