P2356UBLTP

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Thyristors are devices that typically act as switches in electric power systems, with outstanding performance advantages in terms of shock, surge, and ESD protection. The P2356UBLTP is a specialized type of thyristor known as an Ultra-Low-Leakage Thyristor (ULLT), designed to provide optimal protection for electronic circuits when dealing with high frequency or long duration current overvoltage events.

The P2356UBLTP is a special purpose, high performance thyristor chip dissipating only 0.27mA of leakage current during normal operation and designed for use in 100V applications. It offers specially designed low capacitance and effective capacitance, enabling high speed operation and low stray capacitances. When an overvoltage occurs on a power line, the P2356UBLTP triggers to divert current away from a protected device, preventing damage to the device. It is specifically designed for use in low voltage power supplies, data communication networks, power adapters, smart-home systems, and automotive applications.

The P2356UBLTP has an integrated temperature sensor and current limiting circuitry that enable safe operation. The chip works by integrating the thyristor with a diode layer, triggering the thyristor and blocking the current when an overvoltage event occurs. This combination gives the chip incredibly low leakage and high speed response times. It consists of an inner diode layer and an outer thyristor layer, with four high speed sensitive silicon controlled rectifiers (SCRs) connected in parallel. The diode layer and thyristor layer work together to shunt away the overload current from the protected device, clamp the voltage and protect the device.

The chip uses two power pins to receive power, allowing the chip to respond in milliseconds to a detected overvoltage event. It also includes two other pins for temperature detection and current limiting. To protect batteries, the P2356UBLTP has a programmable current limiting range of 15mA to 150mA, allowing custom settings to be programmed depending on battery characteristics.

The P2356UBLTP has an optimal leakage current of 0.27mA when operating in normal conditions. This low leakage provides further savings in power requirements, reducing energy consumption and providing longer-lasting protection for sensitive devices. The chip also has an effective capacitance of 0.4pF, allowing it to operate at high speeds up to 500Vp-p, and a maximum breakdown voltage of 500V.

In summary, the P2356UBLTP is a high performance thyristor which provides optimal protection for electronic circuits, with extremely low leakage, high speed response times, and robust built-in temperature and current limiting. This makes it ideal for a wide range of applications from data communication networks to automotive systems.

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