TPS2070 Pwr Controller for Bus/Self Pwrd Hub w/ 5V LDO Control, 3.3V LDO, 8 pwr switches Act-Lo BPMode Ind | TI.com

TPS2070
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Pwr Controller for Bus/Self Pwrd Hub w/ 5V LDO Control, 3.3V LDO, 8 pwr switches Act-Lo BPMode Ind

Pwr Controller for Bus/Self Pwrd Hub w/ 5V LDO Control, 3.3V LDO, 8 pwr switches  Act-Lo BPMode Ind - TPS2070
Datasheet
 

Description

The TPS2070 and TPS2071 provide a complete USB hub power solution by incorporating four major functions: current-limited power switches for four ports, a 3.3-V 100-mA regulator, a 5-V regulator controller for self-power, and a DP0 line control to signal attach/detach of the hub.

These devices are designed to meet bus-powered and self-powered hub requirements. These devices are also designed for hybrid hub implementations and allow for automatic switching from self-powered mode to bus-powered mode if loss of self-power is experienced (can be disabled by applying a logic high to BP_DIS).

Each port has a current-limited 107-m N-channel MOSFET high-side power switch for 100-mA bus-powered operation. All the N-channel MOSFETs are designed without parasitic diodes, preventing current backflow into the inputs.

For applications not requiring a 5-V regulator controller, use the TPS2074 or TPS2075 device.

Features

  • Complete USB Hub Power Solution
  • Meets USB Specifications 1.1 and 2.0
  • Independent Thermal and Short-Circuit Protection
  • 3.3-V Regulator for USB Hub Controller
  • Overcurrent Logic Outputs
  • 4.5-V to 5.5-V Operating Range
  • CMOS- and TTL-Compatible Enable Inputs
  • 185 µA Bus-Power Supply Current
  • Available in 32-Pin HTSSOP PowerPAD™ Package
  • -40°C to 85°C Ambient Temperature Range

2PowerPAD is a trademark of Texas Instruments.

Parametrics

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Part number Order Vin (Min) (V) Vin (Max) (V) Rating
TPS2070 Order now 4.5     5.5     Catalog