TPD3S014EVM

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Evaluation and demonstration boards and kits offer an accessible way to test and develop electronics systems. This article will discuss the application field and working principle of the TPD3S014EVM, which is one such board. This board is a four-channel ESD Protection Device from Texas Instruments.

The TPD3S014EVM board has been designed to provide a platform for evaluating the operational performance of the TPD3S014 device. This device is a multi-channel source ESD protection device that is suitable for use with USB Type-C or mUSB connectors, as well as other mobile device connectors. The device offers a wide operating voltage range, high-level ESD protection, and excellent power saving in a low profile SOT-23 package.

The TPD3S014EVM can be used in a variety of applications. The board is well-suited for design engineers looking to evaluate the TPD3S014 device in their own products or for those who are developing or testing USB Type-C or mUSB systems. Additionally, the board can be used for docking ports on portable devices, for Type-C to USB adapters and extension cables, or for motherboards.

The TPD3S014EVM board includes one TPD3S014 device with four channels and two BSD5Q45 devices with two channels each. The board allows the user to switch between source and sink operation, as well as the ability to adjust the termination voltage level with a trimmer. The board also includes an oscilloscope test point, which allows the user to measure the signal waveforms of the protection device’s outputs.

The working principle of the TPD3S014EVM is quite straightforward. The board is connected to an external signal source in either source or sink mode depending on the connected device or system and the type of ESD protection required. The four TPD3S014 channels provide ESD protection from adjacent signals, while the two BSD5Q45 devices provide ESD protection from offboard signals.

The TPD3S014 device will typically clamp the external signal to within specified limits and prevent damage to the connected system or device. The two BSD5Q45 channels will protect connected systems or devices from external ESD strikes. Both the TPD3S014 and the BSD5Q45 devices are controlled by a supply voltage and a voltage threshold, which are both adjustable with a trimmer on the board.

The TPD3S014EVM board is a valuable tool for design engineers, allowing them to quickly and easily evaluate the operational performance of the TPD3S014 device. The board includes four channels of protection, two of which offer ESD protection from off-board signals, and includes a trimmer for adjusting the supply voltage and voltage threshold. Its ability to accommodate both source and sink operations makes it suitable for a wide range of applications, including ports and connectors on portable devices, USB Type-C systems, and motherboards.

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