MCST4890DM

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Solid state relays are now a common sight in industrial applications, with their ability to switch signals and power with high reliability and low maintenance. The MCST4890DM is one type of solid state relay, combining a high current output (45A) with an ultra-low RDSon (13mO). This makes it an ideal choice for applications where high efficiency across a wide range of input voltages is required.

The MCST4890DM is a 4-phase, dual output N-channel, high side MOSFET, with integrated Kelvin sources for low RDSon performance. It has an operating input voltage range of 4.5–20V, and a typical output current of 45A, offering high efficiency across a wide range of input voltages. Additionally, the MCST4890DM has integrated ESD protection, and an overvoltage clamp circuit.

The MCST4890DM is designed for use in a wide variety of applications, including motor control, HVAC, solar and wind energy systems, and DC/DC converters. In these applications, the MCST4890DM can offer superior energy efficiency, as well as improved system reliability and safety.

The working principle of the MCST4890DM is simple yet effective. It enables the switching of high current signals through the use of an insulated-gate bipolar transistor (IGBT). When the transistor is activated, a gate voltage is provided to turn on the MOSFET, which then drives the output voltage. The Kelvin source helps to keep the RDSon as low as possible, improving efficiency and reducing power losses.

The MCST4890DM is designed for rapid switching between two different states - ‘on’ and ‘off’. When on, the MCST4890DM will activate its MOSFET, enabling the output voltage and current to flow. Conversely, when off, the MOSFET will be held off, and no current will flow. This enables the MCST4890DM to be used in systems where switching power states quickly is essential.

The MCST4890DM is a reliable and highly efficient type of solid state relay, ideal for use in many different applications. It is easy to set up and maintain, with few components and a simple control logic. It can also respond quickly to changes in input or output voltages, promoting enhanced system efficiency.

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