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SAT - Processors - Audio
Contents
Purpose of this Wiki Page[edit]
This wiki page is intended to be a resource for support engineers, designers, and technical sales to help find appropriate TI silicon to support their processor/controller/FPGA design. The examples in this section is contextual and may not address the needs of every design.
Introduction[edit]
This page supports the design of a USB End Device. A USB end device is somthing that would be conected to a USB host. This device could be a USB mass storage device, like a usb flash drive or hard drive, a humen interface device, like a mouse or keyboard, or somthing like the a USB to serial device. As shown in Figure 1 below, there are two main protection concerns for your USB port, ESD protection of the power and data lines and Overvoltage Protection (OVP) of the power lines. The ID data line present in mini and micro connectors is not shown in the block diagram but is also protected from ESD. ESD protection is important for both power and data connections because USB connectors are external and can come in contact with many different objects. The ESD protection must also have a low capacitance so that is does not interfere with USB high speed or super speed data rates. Over voltage protection is important to keep you device safe if it is connected to a malfunctioning USB port that has a Vbus outside of USB specifications (5V±0.25V). Suggested part numbers are also highlighted in the block diagram below, as well as a list of possible alternative part numbers.
Block Diagram[edit]
Figure 1. A Block Diagram of a USB End Device
Detailed Block Digram[edit]
Figure 2. A Block Diagram of a TPD4S014 based USB End Device
Recomended EVMs[edit]
Combination ESD + OVP[edit]
TPD4S014EVM - Complete USB Port Protection Device
Recommended Part Numbers[edit]
USB OVP[edit]
TPS2400 - Overvoltage/Undervoltage Protection IC in SOT-23-5
ESD Arrays[edit]
TPD4S012 - 4-Channel USB ESD Solution with Power Clamp
Combination ESD + OVP[edit]
TPD4S014 - Complete USB Port Protection Device
Alternative Part Numbers[edit]
USB OVP[edit]
TPS3700 - Window Comparator for Over and Under Voltage Detection
ESD Arrays[edit]
TPD4E1U06 - Quad Channel High Speed ESD Protection Device
TPD4EUSB30 - 4-Channel ESD Solution for Super-Speed (6 GBPS) USB 3.0 Interface
Automotive Qualified Part Numbers[edit]
USB OVP[edit]
TPS2400 - Overvoltage/Undervoltage Protection IC in SOT-23-5
ESD Arrays[edit]
TPD4E001-Q1 - (PREVIEW) Automotive Low-Capacitance 4-Channel +/-15-kV ESD Protectio
Combination ESD + OVP[edit]
TPD4S014 - Complete USB Port Protection Device
Related pages[edit]
SAT - Processors - USB Host Device
SAT - Processors - USB Charger
SAT - Processors - USB On The Go
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