MAPLAD18KP64CAE3

TVS - Diodes

The MAPLAD18KP64CAE3 device is a type of Transient Voltage Suppressor (TVS) diode, a form of protection device that can limit the voltage of an electronic component or system, or protect against surges of electrical current caused by lightning or power anomalies. In this article, we will discuss the application fields and working principles of the MAPLAD18KP64CAE3 device.

Application Field of the MAPLAD18KP64CAE3 TVS Diode

The MAPLAD18KP64CAE3 is designed especially for Automotive applications, where its robust design and wide operating range ensures long-term protection of on-board systems and components. Specifically, the MAPLAD18KP64CAE3 integrates three distinct protection capabilities - TVS protection, ESD protection, and Envelope Tracking pulse protection.

The unique feature of MAPLAD18KP64CAE3 is its Tail Protection, ensuring connected components and circuits are protected against voltage spikes, ESD, and other electrical pulses that might otherwise transit, leading to catastrophic events. The MAPLAD18KP64CAE3 also provides flexibility regarding placement, making it easy to implement in most automotive systems or applications. As such, some popular application fields of this device include automotive entertainment systems, automotive infotainment systems, automotive powertrain systems, and automotive body system.

Working Principle of the MAPLAD18KP64CAE3 Device

The MAPLAD18KP64CAE3 TVS diode is a packaged power device, typically housed in an electrically inert plastic or ceramic package. It offers full protection against ESD, EFT, and surge events, and can be used in any type of application where surge or ESD protection is needed. The key working principle of this device is its ability to limit high-voltage in a circuit, and the way it does this is through its internal clamping mechanism.

The internal clamping mechanism of the MAPLAD18KP64CAE3 works by sensing a sudden and significant voltage increase, and then rapidly allowing the current to pass through the junctions of the diode. As the current passes trough the junctions of the diode, voltage is limited and the majority of the current is then passed through the body of the diode. This helps to protect the connected components and circuits from any ESD, EFT or surge events.

To ensure the safety of all components connected to the TVS diode, a specific breakdown voltage is generated with the internal clamping mechanism. The breakdown voltage differs according to the diode’s rated clamping voltage, which is often printed on the package. Once the voltage is detected, the current passing through the diode will be limited.

Conclusion

The MAPLAD18KP64CAE3 is a rugged and reliable TVS diode designed especially for Automotive applications. It can provide protection against ESD, EFT, and surge events, and thanks to its Tail Protection capabilities, can ensure connected components and circuits are also protected against voltage spikes. Its internal clamping mechanism ensures the voltage is limited and the connected circuits are protected.