3 USB 2.0 Circuit Protection. 3.1 Overview. USB 2.0, also known as hi-speed USB, is an updated version of USB 1.0/1.1 with improved functionality and increased data speeds. USB 2.0 has a 4-wire interface: V. BUS. for power, D+ and D- for differential data signals, and a ground pin.
This document will explain how to connect the USB pins of an EFM32 microcontroller, and will give general guidelines on PCB design for USB applications. First some quick rules-of-thumb for routing and layout are presented before a more detailed explanation follows.
STM32 MCU and MPU devices embed protection against ESD events during the device handling and assembly. Their ESD immunity is characterized according to ANSI/JEDEC standards and specified in their datasheet.
USB-C port circuit design: ESD, filtering, short-circuit protection
Jan 10, 2023 · The ESD suppression chip USBLC6-2SC6 will be located closest to the USB connector. It has two goals: to protect the device from ESD during plug-in or static electricity, and to protect the host PC’s USB port from damage due to over-voltage events on the device.
A very cost-effective solution for ESD protection in USB 2.0/3.0 applications is to combine an internal ESD protection structure (integrated in the USB transceiver) with a robust, high-current application circuit that is tailored for external ESD protection. This is implemented by the device/circuit designer on the PCB.
Key ESD protection device specifications definitions. A quick summary of EMI, EFT, and ESD protection strategies. Capacitor filter selection and characteristics. Software protection techniques. Cost pressure is a constant consideration in any design.
The easiest way to measure the protection level is to apply an ESD pulse to your electronic circuit with the ESD protection device and measure the peak voltage of this ESD pulse before and after the protection device.
USB Port Design with ESD/Overcurrent Protection
Aug 15, 2023 · Would there a better way to handle the ESD protection, or would this be sufficient? I am planning on using a PPTC fuse ( FSMD025-1206-R ) which has a tripping current of 500mA to prevent damage to the USB port of the controlling PC/laptop in case of …
IEC 61000-4-2 electro-static discharge (ESD) protection of USB charging ports is a necessary system requirement for most products. The USB D+ and D– signals from the charging port controller make direct contact with a potentially charged USB cable and the discharge of energy from the cable to the product can damage the controller.
Active ESD Protection for Microcontrollers (EE Tip #129)
Apr 25, 2014 · Microcontrollers need to be protected from of electrostatic discharge (ESD). You can use the circuit described in this post when you have an application requires a greater degree of ESD protection than what you get from an IC on its I/O pins.