TL7726CDE4

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Mixed technology, particularly in TVS, blends two of modern ultra-fast surge protection components together for maximum protection against transient over-voltage pulses. The TL7726CDE4 is one such example. This is a two-terminal bidirectional zener plus transient voltage suppressor (TVS) diode array designed to protect sensitive components from high voltage transients. It provides instant shunting to ground of voltage spikes up to peak impulse rating of 350 W (Ipp) as per IEC 61000-4-5. An integrated input to output voltage clamp helps to reduce clamping voltage and save ESD filter cost. The ESD filter cost savings provided by TL7726CDE4 comes from its bidirectional ESD protection capability. Its two-terminal design makes it simple and easy to implement. The zener element of the device helps reduce the capacitance between input and output lines making it ideal for ESD protection in high-speed differential applications. The application fields for TL7726CDE4 include computer, consumer, and telecom line ESD protection, as well as high-speed signal line ESD protection for digital signals. It also provides decoupling for applications such as digital video cameras, televisions, and home theatre systems. The working principle of the TL7726CDE4 is that transient voltage is protected from damaging the components by providing instant over-voltage shunting to ground. This is enabled through the device’s clamping voltage (Vc) and maximum peak pulse current (Ipp) ratings. Its clamping voltage reduces the voltage across the device by clamping it to ground when an over-voltage event occurs. The maximum peak pulse current rating determines the amount of current that can be safely diverted away when a transient event occurs. The TL7726CDE4 also incorporates thermal resistance which helps protect against any hot spots from turning into full short circuits of the TVS component. This helps ensure that the devices remain robust and efficient even with extended high current testing. In conclusion, the TL7726CDE4 is a two-terminal bidirectional zener plus TVS diode array that offers highly effective ESD protection for a wide range of applications. The device is designed for cost-saving ESD protection in applications such as the telecommunications, computer, consumer, and digital video cameras. Its bidirectional protection mechanism, combined with its claming voltage and peak pulse current ratings, help ensure robust transient protection is delivered when needed.

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