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參數(shù)資料
| 型號： | LM3526MX-L |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | Dual Port USB Power Switch and Over-Current Protection |
| 中文描述： | 1.2 A BUF OR INV BASED PRPHL DRVR, PDSO8 |
| 封裝： | SO-8 |
| 文件頁數(shù)： | 9/11頁 |
| 文件大?。?/td> | 323K |
| 代理商： | LM3526MX-L |
Application Information
(Continued)
PCB LAYOUT CONSIDERATIONS
In order to meet the USB requirements for voltage drop,
droop and EMI, each component used in this circuit must be
evaluated for its contribution to the circuit performance. The
PCB layout rules and guidelines must be followed.
Place the switch as close to the USB connector as pos-
sible. Keep all V
traces as short as possible and use at
least 50-mil, 1 ounce copper for all V
traces. Solder
plating the traces will reduce the trace resistance.
Avoid vias as much as possible. If vias are used, use mul-
tiple vias in parallel and/or make them as large as pos-
sible.
Place the output capacitor and ferrite beads as close to
the USB connector as possible.
If ferrite beads are used, use wires with minimum resis-
tance and large solder pads to minimize connection re-
sistance.
DS101097-23
FIGURE 2. Self-Powered Hub Per-Port Voltage Drop
L
www.national.com
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PDF描述 |
|---|---|
| LM3526M-L | Dual Port USB Power Switch and Over-Current Protection |
| LM3526M-H | Dual Port USB Power Switch and Over-Current Protection |
| LM3526-L | Dual Port USB Power Switch and Over-Current Protection |
| LM3526-H | Dual Port USB Power Switch and Over-Current Protection |
| LM3526 | Dual Port USB Power Switch and Over-Current Protection |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3526MX-L/NOPB | 功能描述:電源開關(guān) IC - USB DUAL PORT USB PWR SWITCH RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| LM3527A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PULSE WIDTH MODULATOR |
| LM3527AJ | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PULSE WIDTH MODULATOR |
| LM3527AN | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PULSE WIDTH MODULATOR |
| LM3528 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Efficiency, Multi Display LED Driver with 128 Exponential Dimming Steps and Integrated OLED Power Supply in a 1.2mm × 1.6mm μSMD Package |
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