3KP190A-TP Circuit Protection

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TVS - diodes are used to protect sensitive equipment from overvoltage transients, which may be caused by power line disturbances like lightning, switching operations and electrostatic discharges. The 3KP190A-TP is a triple array, low capacitance, three lines of defense TVS diode, offering an effective solution for protecting critical circuit elements from high-speed electronics.

Design and IDE

The 3KP190A-TP combines a field-programmable gate array (FPGA) and high-speed transistors with a temperature and power-efficient silicon-on-insulator (SOI) process that allows for extremely low on-resistance. This combination makes the device suitable for a wide variety of applications, including industrial, automotive, consumer electronics, and telecom.

The FPGA is powered by an AC-1 logic core, which allows it to process instructions independently. This ensures that the device is able to handle a variety of configuration and communication tasks with minimum latency. The FPGA also supports up to three voltage regulators, allowing for increased power savings.

Working Principle

The 3KP190A-TP is a bidirectional device that takes the input and outputs a protection current. This protection current will activate a series of high-speed transistors, which will be configured as a thyristor. The most common form of thyristor is the diac, which acts as a voltage-controlled switch with a positive temperature coefficient.

When an overvoltage is detected, the thyristor is triggered, causing the protection current to flow through the TVS diode. This current limits the overvoltage spike and channels the energy away from the sensitive circuit elements. As long as the voltage spike is below the breakdown voltage of the diode, the protection current will dissipate the excess energy until the voltage reaches its equilibrium state.

Protection Modes

The 3KP190A-TP offers both unidirectional and reverse-conducting protection modes, with each mode providing a different level of protection. In the unidirectional mode, the device will clamp any voltage spikes above a certain threshold. Reverse-conducting mode allows the device to detect voltage spikes in both directions and provide a clamping effect if necessary.

Applications

The 3KP190A-TP can be used in a variety of applications, such as automotive, industrial, consumer electronics, and telecom. It can be used to protect circuits from overvoltages, as well as from electrostatic discharge (ESD) and secondary breakdowns. The device can also be used in power-sensitive systems requiring low on-state resistance.

In automotive applications, the device can be used to protect circuits and systems, such as engine control units, airbags, navigation systems, and even electrical wiring. It can also be used to protect consumer electronics against static electricity, as well as against lightning and power surges.

Conclusion

The 3KP190A-TP provides an effective solution for protecting sensitive electronics against overvoltage transients. It combines a FPGA with high-speed transistors and SOI technology to provide low on-resistance. The device provides both unidirectional and reverse-conducting protection modes, making it suitable for a range of applications, such as automotive, industrial, consumer electronics, and telecom.

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