TPS2342

更新时间： 2024-11-14 08:39:31

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
53页	843K
描述
DUAL SLOT PCI-X 2.0 HOT PLUG POWER CONTROLLER

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中文翻译

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数据手册

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TPS2342 数据手册

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SLUS572E − OCTOBER, 2003 − REVISED FEBRUARY 2005

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FEATURES

DESCRIPTION

Supports PCI, PCI−X 1.0 and PCI−X 2.0

The TPS2342 contains main supply power

control, auxiliary supply power control, power

FETs for 12-V, −12-V and auxiliary 3.3-V supplies,

Internal Power Switches for –12 V, 12 V, 3.3 V

Aux

control, and digital control of slots. Each

Control for External Power Switches for 5 V,

TPS2342 contains supply control and switching

for two slots. The TPS2342 supports both serial

and direct communication to the slots.

3.3 V, and V

Overload Protection on All Supplies

Input Under-Voltage Protection for 3.3 V, 5 V,

The main power control circuits start with all

supplies off and all outputs are held off until all

power supplies to the TPS2342 are valid. When

power is requested via the serial interface or by

direct control, 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 power control circuits monitor load current

and latch off that slot if the load current exceeds

a programmed maximum value. Once the 12-V,

the 5-V, and the 3.3-V FETs are fully enhanced,

the load voltage is monitored. If the load voltage

drops out of specification after these FETs are fully

enhanced, the slot latches off.

12 V and V

Supplies

AUX

Soft Start to Minimize Inrush Current

Programmable Slew Rate for 3.3 V, 5 V, 12 V,

and V

Supplies

AUX

Multi-Slot or Single-Slot Serial Operating

Mode

Direct Operating Mode

Selection Based on Card Type

80-Lead PowerPadt TQFP Package

APPLICATIONS

Hot Plug Slots in Servers

SIMPLIFIED APPLICATION DIAGRAM

PCI-X 2.0 SLOT

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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与TPS2342相关器件

型号	品牌	获取价格	描述	数据表
TPS2342_15	TI	获取价格	DUAL SLOT PCI-X 2.0 HOT PLUG POWER CONTROLLER
TPS2342PFP	TI	获取价格	DUAL SLOT PCI-X 2.0 HOT PLUG POWER CONTROLLER
TPS2342PFPG4	TI	获取价格	Dual Slot PCIX, PCIX 1.0 and PCIX 2.0 Hot-Plug Power Controller for Servers 80-HTQFP -40 t
TPS2342PFPR	TI	获取价格	DUAL SLOT PCI-X 2.0 HOT PLUG POWER CONTROLLER
TPS2342PFPRG4	TI	获取价格	DUAL SLOT PCI-X 2.0 HOT PLUG POWER CONTROLLER
TPS2343	TI	获取价格	DUAL SLOT PCI-X 2.0 HOT-PLUG POWER CONTROLLER
TPS2343DDP	TI	获取价格	6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO80, GREEN, PLASTIC, HTSSOP-80
TPS2343DDPR	TI	获取价格	6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO80, GREEN, PLASTIC, HTSSOP-80
TPS2343DDPRG3	TI	获取价格	6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO80, GREEN, PLASTIC, HTSSOP-80
TPS2345	ETC	获取价格	CompactPCI Hot Swap Power Manager Industrial Temp IC that meets the PICMG Standard

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