- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358845 > LM3526MX-H (NATIONAL SEMICONDUCTOR CORP) Dual Port USB Power Switch and Over-Current Protection PDF資料下載
參數(shù)資料
| 型號(hào)： | LM3526MX-H |
| 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(yè)數(shù)： | 1/11頁(yè) |
| 文件大小： | 323K |
| 代理商： | LM3526MX-H |
LM3526
Dual Port USB Power Switch and Over-Current
Protection
General Description
The LM3526 provides Universal Serial Bus standard power
switch and over-current protection for all host port applica-
tions. The dual port device is ideal for Notebook and desktop
PC’s that supply power to more than one port.
A 1 ms delay on the fault flag output prevents erroneous
overcurrent reporting caused by in-rush currents during
hot-plug events.
The dual stage thermal protection circuit in the LM3526 pro-
vides individual protection to each switch and the entire de-
vice. In a short-circuit/over-current event, the switch dissipat-
ing excessive heat is turned off, allowing the second switch
to continue to function uninterrupted.
The LM3526 accepts an input voltage between 2.7V and
5.5V allowing use as a device-based in-rush current limiter
for 3.3V USB peripherals, as well as Root and Self-Powered
Hubs at 5.5V. The Enable inputs accept both 3.3V and 5.0V
logic thresholds.
The small size, low R
ON
, and 1 ms fault flag delay make the
LM3526 a good choice for root hubs as well as per-port
power control in embedded and stand-alone hubs.
Features
n
1 ms fault flag delay filters Hot-Plug events
n
Smooth turn-on eliminates in-rush induced voltage drop
n
UL recognized component: REF
#
205202
n
1A nominal short circuit output current protects PC
power supplies
n
Thermal shutdown protects device in direct short
condition
n
500mA minimum continuous load current
n
Small SO-8 package minimizes board space
n
2.7V to 5.5V input voltage range
n
140 m
Max. switch resistance
n
1 μA Max. standby current
n
200 μA Max. operating current
n
Under-voltage lockout (UVLO)
Applications
n
Universal Serial Bus (USB) Root Hubs including
Desktop and Notebook PC
n
USB Monitor Hubs
n
Other Self-Powered USB Hub Devices
n
High Power USB Devices Requiring In-rush Limiting
n
General Purpose High Side Switch Applications
Typical Operating Circuit and Connection Diagram
DS101097-1
DS101097-2
LM3526-H
DS101097-40
DS101097-28
LM3526-L
February 2000
L
2000 National Semiconductor Corporation
DS101097
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM3526MX-L | Dual Port USB Power Switch and Over-Current Protection |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3526MX-H/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 |
| LM3526MXL | 制造商:Texas Instruments 功能描述: |
| LM3526MX-L | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| 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 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。