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TPS2343 Datasheet DUAL SLOT PCI-X 2.0 HOT PLUG POWER CONTROLLER

Manufacturer: Texas Instruments

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General 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.

Overview

Osolete Device TPS2343 ą SLUS644B − FEBRUARY 2005 − MAY 2005 DUAL SLOT PCIĆX 2.

Key Features

  • D Supports PCI, PCI.
  • X 1.0 and PCI.
  • X 2.0 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 D Overload Protection on All Supplies D Current Regulation on 3.3 V, 5 V and VIO Supplies D Soft Start to Minimize Inrush Current D Programmable Slew Rate for 3.3 V, 5 V, 12 V, VIO and Vaux Supplies D Direct Control of All Functions D VIO Selection Based on Card Type D 80-Lead PowerPadt HTSSOP Package D Narrow Package that Fit.

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