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TPS2343

Features: Supports PCI, PCI−X 1.0 and PCI−X 2.0 Slots Internal Power Switches for −12 V, 12 V, 3.3 V Aux Control for Power FETs for 5 V, 3.3 V, and VIO Overload Protection on All Supplies Current Regulation on 3.3 V, 5 V and VIO Supplies Soft Start to Minimize Inrush Current Pro...

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SeekIC No. : 004526624 Detail

TPS2343: Features: Supports PCI, PCI−X 1.0 and PCI−X 2.0 Slots Internal Power Switches for −12 V, 12 V, 3.3 V Aux Control for Power FETs for 5 V, 3.3 V, and VIO Overload Protection on All ...

TPS2343 Data Sheet

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Part Number:
TPS2343
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/1/11

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Product Details

Description



Features:

Supports PCI, PCI−X 1.0 and PCI−X 2.0 Slots
Internal Power Switches for −12 V, 12 V, 3.3 V Aux
Control for Power FETs for 5 V, 3.3 V, and VIO
Overload Protection on All Supplies
Current Regulation on 3.3 V, 5 V and VIO Supplies
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 PowerPad HTSSOP Package
 Narrow Package that Fits Between PCI Slots


Application

 Hot Plug Slots in Servers


Pinout

Connection Diagram


Specifications

PARAMETER TPS2343 UNIT
Input voltage range, P12VIN −0.5 to 15 V
M12VIN −15.0 to 0.5
All others −0.5 to 7
Output voltage range, P12VO, 5VG, 3VG, 15VIOG, 3VIOG −0.5 to VP12VIN + 0.5
P12VG −0.5 to 28
M12VO −15 to 0.5
Output current, FAULT, OUTUV, PWROFF 50 mA
Output current pulse, P12VO (dc internally limited) 3 A
M12VO 0.8
3VAUX 2
Operating junction temperature range, TJ −40 to 100 °C
Storage temperature range, Tstg −65 to 150
Lead temperature soldering 1.6 mm (1/16 inch) from case for 10 seconds 260



Description

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.

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.

Logic inputs to the TPS2343 access all functions of the product. All status information from the product  is available on logic outputs.




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