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TPS22985 - SUPPLY SELECTION IC

Description

The TPS22985 is a supply selection device for active Thunderbolt™ cables.

The device selects a supply that is at 3.3V from two supply inputs and connects this to two non-current limited outputs OUTA and OUTB.

When 3.3V is not present at either supply, the outputs become high impedance.

Features

  • 1.
  • 2 2.8 V to 19.8 V.
  • Auto Selects 3.3 V Supply.
  • > 10-mA Low Power Switch.
  • > 500-mA High Power Switch.
  • Reverse Current Blocking From OUT to VDD.
  • Wake on UART Input Activity.
  • UART RX and TX Buffers.

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Full PDF Text Transcription

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Not Recommended for New Designs TPS22985 www.ti.com SLVSBA9B – MARCH 2012 – REVISED JUNE 2012 Thunderbolt™ SUPPLY SELECTION IC Check for Samples: TPS22985 FEATURES 1 •2 2.8 V to 19.8 V • Auto Selects 3.3 V Supply • > 10-mA Low Power Switch • > 500-mA High Power Switch • Reverse Current Blocking From OUT to VDD • Wake on UART Input Activity • UART RX and TX Buffers APPLICATIONS • Thunderbolt™ Cables • Notebook Computers • Desktop Computers • Power Management Systems VDD1 VDD2 VDD1 VDD2 CPO Charge Pump FET 1 FET 3 FET 4 FET 2 Logic Core RESETZ ENB CFG/OE RX RXH TX TXH Level Shifter Level Shifter RXC TXC DESCRIPTION The TPS22985 is a supply selection device for active Thunderbolt™ cables. The device selects a supply that is at 3.
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