TLPA28CA Circuit Protection

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TVS (transient voltage suppression) diodes are widely used in electronics, as they can provide very effective and reliable protection against lightning strikes and electrical spikes. The TLPA28CA is a TVS diode that is specifically designed to protect sensitive equipment from voltage fluctuations. This article will discuss the application field and working principle of the TLPA28CA.

The TLPA28CA was designed to protect communications equipment, such as telephone, cable, and satellite systems, from voltage surges. It is also used to protect industrial equipment, such as computers and servers, from surges caused by malfunctioning equipment or lightning strikes. The diode is also effective at protecting against electrostatic discharges generated by personnel and other sources.

The TLPA28CA has an electrostatic discharge (ESD) rating of 25,000 volts and can protect connected equipment from surges up to 2,500 volts. It is designed to clamp transient voltages to a maximum of 125 volts, which helps protect sensitive equipment from overvoltage damage. In addition, the diode has a low capacitance and extremely high speeds to ensure that it can handle the most severe transient overvoltage. The response time of the diode is less than 5 nanoseconds, making it extremely effective at protecting against surges and transients.

The TLPA28CA works by clamping voltage levels by redirecting surge current from the protected equipment. When a surge occurs, the diode will turn on and divert the majority of the surge current to ground, helping to protect the equipment from overvoltage damage. The diode is designed to be able to do this rapidly, so that surges and transients are effectively neutralized before they can cause any damage.

The TLPA28CA also features a secondary breakdown voltage that helps protect against on-chip capacitor damage. The breakdown voltage for the diode is 20 volts; when the voltage across the diode reaches this level, the diode will open and divert any further current or voltage to ground. This helps protect on-chip capacitors from being damaged by overvoltage or overcurrent.

In addition, the TLPA28CA also features an internal thermal shutdown mechanism which helps protect the equipment in case of prolonged overvoltage or overcurrent. If the internal temperature of the diode reaches a certain level, the diode will shut off to prevent further damage to the connected equipment.

In conclusion, the TLPA28CA is a powerful and reliable TVS diode designed to provide effective protection against overvoltage and lightning strikes. Its fast response time and secondary breakdown voltage provide protection from on-chip capacitor damage, and its integrated thermal shutdowns provide protection against prolonged power surges. With its robust design and excellent protection characteristics, the TLPA28CA is well-suited for protecting sensitive communications and industrial equipment from voltage surges.

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