TIDA-00845 Reference Design

Texas Instruments

Two-Port Automotive USB 2.0 Hub With Short-to-Battery Protection Reference Design

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 1Short-to-battery protection (up to 18 V) on VBUS: DP/DMOvercurrent protection current limit: 550 mAIEC 61000-4-2 (Level 4) system-level ESD protection at VBUS: DP/DMShort-to-ground protection on VBUS
Applications
  • Power analyzer
  • Signal generator
  • Programmable DC power supply
Product Categories
  • Interface

Parts

Part Number Name Companion Part
SN74LVC1G125 SN74LVC1G125 Buy Datasheet
TPD1E05U06 TPD1E05U06 Buy Datasheet
TPS74801 TPS74801 Buy Datasheet
TPS7A4533 TPS7A4533 Buy Datasheet

Bill Of Materials

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Schematic

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Download the schematic for TIDA-00845

Other Documents

Title Updated Type Size (KB)
TIDA-00845 Gerber 13 May 2016 ZIP 8976
TIDA-00845 Altium 13 May 2016 ZIP 10587
TIDA-00845 Assembly Drawing 13 May 2016 PDF 269
TIDA-00845 PCB 13 May 2016 PDF 2272
TIDA-00845 BOM 13 May 2016 PDF 92
TIDA-00845 Schematic and Block Diagram 13 May 2016 PDF 909