Automotive 2.4A Dual-Port USB Hub Reference Design With Short-to-Battery Protection

(ACTIVE) TIDA-00887

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Key Document

Description

The TIDA-00887 is comprised of a two-port USB 2.0 hub with short-to-battery (STB) and short-circuit protection on both downstream ports provided by the TPD3S716-Q1. Both downstream ports are configured either as a custom divider mode or a dedicated charging port (DCP) provided by the TUSB4020BI-Q1 USB 2.0 hub if no upstream device is connected.  When an upstream is connected, the TUSB4020 hub supports charging via CDP. The ports automatically switch between divider mode, CDP mode, and DCP mode depending on the portable devices connected, in order to provide the fastest charging rate to the connected device.

This reference design is similar to the TIDA-00845, however, it removes the in-system STB simulator and adds functionality for 2.4-A charging and automatic charge detection.

Features
  • Fully functional USB hub with short-to-battery (STB) protection and BC 1.2 charge detection
  • Supports USB 2.0 high-speed data rates
  • Adjustable overcurrent protection current limit up to 2.4 A
  • IEC 61000-4-2 (Level 4) and ISO 10605 system-level ESD protection on VBUS_CON, DP/DM
  • STB protection (up to 18 V) on VBUS_CON, VD+, VD-
  • Short-to-ground protection on VBUS_CON for both downstream ports

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Design Files

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Bill of Materials (BOM)

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TI Devices (5)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LMR14050-Q1  Automotive 40V, 5A SIMPLE SWITCHER®, 2.2MHz Step-Down Regulator with 40uA IQ  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPD2E2U06-Q1  Automotive Dual-Channel High-Speed ESD Protection Device  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TPD3S716-Q1  Automotive USB 2.0 Interface Protection w/ Adjustable Current Limit and Short-to-Battery Protection  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TPS74801  Single Output LDO, 1.5A, Adj. (0.8 to 3.6V), Programmable Soft-Start  Power management  Sample & Buy View Design Kits & Evaluation Modules
TUSB4020BI-Q1  Automotive Two-Port High-Speed 480Mbps USB 2.0 Hub  USB  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LMR14050-Q1 Download Download
Download Download
TPD2E2U06-Q1 Download Download
Download -
TPD3S716-Q1 Download
TPS74801 Download Download
Download Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Datasheet (1)
Title Abstract Type Size (KB) Date Views
PDF 2468 02 Jun 2016
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 993 16 Dec 2016 5
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 503 10 Jan 2017 0
ZIP 1894 10 Jan 2017 1 1
PDF 1818 10 Jan 2017 0
PDF 185 10 Jan 2017 0
PDF 63 10 Jan 2017 1 1
PDF 440 10 Jan 2017 2

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