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TPS2343

更新时间： 2024-11-13 22:50:39
品牌 Logo 应用领域
德州仪器 - TI 功率控制控制器PC
页数 文件大小 规格书
39页 666K
描述
DUAL SLOT PCI-X 2.0 HOT-PLUG POWER CONTROLLER

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中文翻译

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TPS2343 数据手册

 浏览型号TPS2343的Datasheet PDF文件第2页浏览型号TPS2343的Datasheet PDF文件第3页浏览型号TPS2343的Datasheet PDF文件第4页浏览型号TPS2343的Datasheet PDF文件第5页浏览型号TPS2343的Datasheet PDF文件第6页浏览型号TPS2343的Datasheet PDF文件第7页 
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SLUS644B − FEBRUARY 2005 − MAY 2005  
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FEATURES  
DESCRIPTION  
D
Supports PCI, PCI−X 1.0 and PCI−X 2.0 Slots  
Each TPS2343 contains main supply power  
control, auxiliary supply power control, power  
FETs for 12-V, −12-V and auxiliary 3.3-V supplies,  
VIO control, and digital control for two slots.  
D
Internal Power Switches for −12 V, 12 V, 3.3 V  
Aux  
D
Control for Power FETs for 5 V, 3.3 V, and  
VIO  
The main power control circuits start with all  
supplies off and all outputs are held off until  
PGOOD is asserted, indicating that system  
supplies are valid. Then, when power enable is  
asserted, the control circuit applies constant  
current to the gates of the power FETs, allowing  
each FET to ramp load voltage linearly. Each  
supply can be programmed for a desired ramp  
rate by selecting the appropriate gate capacitor.  
The TPS2343 monitors load current and regulates  
peak current to prevent disturbances to the  
system power rails. If load current remains  
regulated for longer than 5 ms, that slot is latched  
off.  
D
Overload Protection on All Supplies  
D
Current Regulation on 3.3 V, 5 V and VIO  
Supplies  
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Soft Start to Minimize Inrush Current  
Programmable Slew Rate for 3.3 V, 5 V, 12 V,  
VIO and Vaux Supplies  
Direct Control of All Functions  
VIO Selection Based on Card Type  
80-Lead PowerPadt HTSSOP Package  
Narrow Package that Fits Between PCI Slots  
APPLICATIONS  
Logic inputs to the TPS2343 access all functions  
of the TPS2343. All status information from the  
TPS2343 is available on logic outputs.  
D
Hot Plug Slots in Servers  
SIMPLIFIED APPLICATION DIAGRAM  
PCI-X 2.0 SLOT  
PCI-X 2.0 SLOT  
VIO  
VIO  
CONTROL  
LOGIC  
3.3VAUX 12V −12V CONTROL  
−12V 12V 3.3VAUX  
1.5 V  
3.3 V 5 V  
5 V 3.3 V  
1.5 V  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PowerPadt is a trademark of Texas Instruments Incorporated.  
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Copyright 2005, Texas Instruments Incorporated  
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