MXLLCE90AE3 Circuit Protection

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Transient voltage suppressor diode (TVS-diodes) have been around for many years, and they are slowly becoming more popular due to the increasing demand on faster, more reliable electrical protection. MXLLCE90AE3 is the latest addition from the Philips-developed family of ultra-small footprint transient protection devices. As a TVS-diode, it has lots of application and features, making it a reliable and versatile tool for electrical protection.

Application Field

MXLLCE90AE3 offers ESD protection, CD protection, and EFT protection between lines and between power and ground. It is also capable of protecting against voltage surges of up to 30kV, making it more than capable of providing reliable protection for most modern electronic devices. The device has a small form factor, making it easy to fit into narrow places and tight spaces, and its low capacitance makes it ideal for protecting high speed signal lines. Furthermore, the device has a wide operating range, allowing for reliable operation in temperatures ranging from -55°C to 150°C.

Additionally, MXLLCE90AE3 has been proven to be robust enough for automotive applications, which is a significant benefit for products such as driver assistance systems, power management systems, and electric/hybrid systems that often need to operate reliably in extreme conditions. Furthermore, the device features an overvoltage protection circuit, which not only eliminates the need for a series resistor but also provides a more reliable protection in case of a voltage spike.

Working Principle

The MXLLCE90AE3 features a unidirectional configuration, meaning that it will only pass current in one direction. This feature helps prevent the device from being damaged by reverse voltages. The device is composed of two components, a Zener diode and a voltage limit circuit. The Zener diode provides reverse breakdown protection by limiting the voltage across its terminals, while the voltage limit circuit prevents higher voltage from passing through. The combination of these two components is what makes the MXLLCE90AE3 so effective at providing protection against voltage surge.

The device also features a low capacitance value of less than two picofarads, which helps reduce signal transmission loss while also improving the protection provided. This low capacitance value helps prevent excessive ringing and signal transmission interference. Additionally, the device has a high surge current capability, which helps protect against powerful surges, such as those caused by nearby lightning strikes.

Furthermore, the MXLLCE90AE3 is capable of providing a fast response time, making it an ideal choice for protecting high speed data lines. The device is usually used in combination with other TVS-diodes in order to provide further protection to a system.

Conclusion

As a TVS-diode, the MXLLCE90AE3 provides reliable protection against voltage spikes and surges. It is perfect for automotive, signal, and high speed data applications, due to its small form factor, wide operating range, low capacitance value, and high surge current capability. The device is robust and reliable, and it will provide years of reliable protection for any electronic project.

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