MPLAD36KP15CAE3

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TVS diodes provide surge protection for electrical circuits and components by absorbing and dissipating surges of current. They protect against ESD (electrostatic discharge), lightning and other power surges. The MPLAD36KP15CAE3 is a transient voltage suppressor diode array specifically designed to protect sensitive electronics from high voltage surges. This article provides an overview of its application field and working principle.

The MPLAD36KP15CAE3 is a highly integrated 3-channel transient voltage suppressor diode array. It can be used in applications such as power distribution systems, power supplies, industrial automation systems, automotive electronic systems, communications systems and electronic entertainment systems (e.g. gaming hardware). It is designed to divert and shunt transient voltages away from sensitive circuits, while also providing ESD and surge protection. It can handle voltages up to 800V and can support currents up to 30A.

The MPLAD36KP15CAE3 features an integrated design that allows for fast voltage protection. It has three channels that operate independently to increase its voltage protection range, and each includes an associated resistor (R1, R2 and R3 in the diagram). The device is in a 5x6mm QFN package and is lead-free and RoHS compliant.

The fundamental operating principle of the MPLAD36KP15CAE3 is based on the “avalanche breakdown” mechanism. When an external voltage is applied, the diode will be in a reverse-bias state and a reverse breakdown current begins to flow. Due to the exponential increase in the current level, a stable operating point is created at the avalanche voltage (VBR) of the diode. The diode acts as a switch and diverts the surge current away from the circuit or component, protecting it from damage.

When the transient voltage exceeds the breakdown voltage of the device, the diode starts to conduct. The diode’s resistor then begins to charge and limit the current flow as the voltage starts to decay. This process quickly reduces the voltage and current to a predetermined safe level, allowing the device and circuit to return to normal operation.

In order for the MPLAD36KP15CAE3 to operate correctly, an adequate amount of thermal design is required. The device’s array requires sufficient number of vias to provide effective thermal dissipation and efficiently manage heat. Heat generated by the device must be dissipated to the ground plane for better heat management and a cooler operating temperature.

The MPLAD36KP15CAE3 is a 3-channel transient voltage suppressor diode array designed to provide protection against high voltage surges. Its features allow for fast voltage protection and the integrated design offers improved surge protection performance. With proper design and thermal management, electrical circuits and components can be protected from the damaging effects of surges and other transient phenomena.

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