USB Type-C™ Power-Path Protection With Audio Accessory Support Reference Design


Design files


The TIDA-03030 reference design provides a robust protection solution for the power path in USB Type-C™ applications. The design protects the power path from overvoltage, overcurrent, hot-plug, and reverse-current events by leveraging the TPS25923 (eFuse) and CSD17571Q2 (reverse-blocking FET). The system solution emulates a downstream facing port (DFP) and is able to detect the connection of an upstream facing port (UFP) device. The TIDA-03030 reference design also supports analog audio for USB Type-C audio accessories. The flexible VBUS protection with audio accessory functionality is achievable within a 20 mm x 20 mm, four-layer, single-sided solution.

  • Reverse current blocking and overvoltage protection up 30 V
  • Overcurrent events and short-circuit protection
  • Determines UFP connection, audio accessory, port attachment, and cable orientation
  • Automatically switches between analog audio and USB data lines
  • Routes MIC and GND signals automatically
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUCB8.PDF (3677 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement

TIDROO4.ZIP (1077 K)

Files used for 3D models or 2D drawings of IC components

TIDCCW2.ZIP (2297 K)

Design file that contains information on physical board layer of design PCB

TIDROO3.PDF (1132 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

eFuses & hot swap controllers

TPS259234.5-V to 5.5-V, 28mΩ, 1-5A eFuse with driver for external blocking FET

Data sheet: PDF | HTML
Audio switches

TS3A226AEAudio jack switch with reduced GND switch Ron & FM capability

Data sheet: PDF
ESD protection diodes

TPD6E05U066 channel 0.5-pF, 5.5-V, ±12-kV ESD protection diode for USB, HDMI & High Speed Interfaces

Data sheet: PDF | HTML
Inverting buffers & drivers

SN74LVC1G04Single 1.65-V to 5.5-V inverter

Data sheet: PDF
Linear & low-dropout (LDO) regulators

TLV733P300-mA, capacitor-free, low-IQ, low-dropout voltage regulator with enable

Data sheet: PDF | HTML
N-channel MOSFETs

CSD17571Q230-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 29 mOhm

Data sheet: PDF | HTML
USB hubs & controllers

TUSB320LAIType-C Configuration Channel Logic and Port Control

Data sheet: PDF | HTML
USB redrivers & multiplexers

TS5USBA224USB 2.0 High-Speed (480Mbps) and Audio Switches with Negative Signal Capability

Data sheet: PDF

Technical documentation

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Type Title Date
* Design guide USB Type-C Power Path Protection With Audio Accessory Support Reference Design Nov. 09, 2016
Technical article USB Type-C™ power: Should your next device have USB Type-C? PDF | HTML Feb. 14, 2017

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