Two-Port Automotive USB 2.0 Hub With Short-to-Battery Protection Reference Design
TIDA-00845
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Key Document

Description

TIDA-00845 is a dual-port USB 2.0 hub with the ability to withstand a short of up to 18-V DC on both downstream ports, as well as Level 4 IEC 61000-4-2 ESD protection, overcurrent conditions, and shorts to ground. This protection is provided by an integrated protection device - the TPD3S714-Q1. With short-to-battery (STB) protection, short-circuit protection, and a fixed current-limit load switch on both downstream ports, the TUSB4020BI USB 2.0 hub is isolated and protected from overvoltage and overcurrent conditions. Downstream port 1 includes a STB test simulator for applying 18-V DC, and two TPD3S714-Q1s to protect both the hub and a peripheral for easily demonstrating USB STB protection functionality.

Features
  • Fully functional USB hub with built-in short-to-battery test simulator on downstream port 1
  • Short-to-battery protection (up to 18 V) on VBUS, DP/DM
  • Overcurrent protection current limit: 550 mA
  • IEC 61000-4-2 (Level 4) system-level ESD protection at VBUS, DP/DM
  • Short-to-ground protection on VBUS

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Design Files

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TI Devices (6)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LMR14030  40V, 3.5A SIMPLE SWITCHER, 2.2MHz Step-Down Regulator with 40uA IQ  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G125  Single Bus Buffer Gate With 3-State Outputs  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules
TPD1E05U06  1-channel ultra-low-capacitance IEC ESD protection diode  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TPD3S714-Q1  Automotive USB 2.0 Interface Protection with Short-to-Battery and Short-to-Ground Protection  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TPS74801  Single-output 1.5A LDO regulator, adjustable (0.8V to 3.6V), programmable soft start  Power management  Sample & Buy View Design Kits & Evaluation Modules
TUSB4020BI  Two-Port High-Speed 480Mbps USB 2.0 Hub  USB  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LMR14030 Download Download
SN74LVC1G125 Download Download
Download Download
Download
Download Download
Download -
Download Download
Download Download
TPD1E05U06 Download
TPD3S714-Q1 Download
TPS74801 Download Download
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TUSB4020BI Download -

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Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Datasheet (1)
Title Type Size (KB) Date
PDF 2873 18 Apr 2017
User guides (2)
Title Type Size (KB) Date
PDF 2599 06 Dec 2016
PDF 10044 23 May 2016
Design files (6)
Title Type Size (KB) Date
ZIP 8976 13 May 2016
ZIP 10587 13 May 2016
PDF 269 13 May 2016
PDF 2272 13 May 2016
PDF 92 13 May 2016
PDF 909 13 May 2016

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