MP172GJ-Z Integrated Circuits (ICs)

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The MP172GJ-Z is a PMIC in the AC DC Converters and Offline Switchers family. It is a primary side, constant power switching regulator that can accept any input voltage above 400 volts. It provides a high efficiency solution with a built-in compensation network and it achieves a unity power factor correction (U-PFC). It also features a wide operating temperature range and a highly reliable soft start circuit.

The MP172GJ-Z is ideal for AC/DC regulated power supplies where the output voltage is regulated and a PFC is needed. It is typically used in applications such as power adapters, PC supplies, game consoles, cable TV and audio equipment, lighting and other applications with constant power requirements. It also has the capability to be used as a buck or boost converter.

The MP172GJ-Z\'s main function is to deliver a regulated DC power. It achieves this by utilizing a 2-stage process. The first stage involves rectifying the input AC voltage and converting it to a DC voltage. The second stage then regulates the DC voltage to a user-defined output voltage. As part of the second stage, it also provides active power factor correction (PFC). This is essential for efficient power conversion and helps reduce electromagnetic interference (EMI) from the circuit.

The MP172GJ-Z incorporates a wide range of features to ensure a safe and reliable operation. It includes a soft start feature, which ramps up the power gradually to prevent power surges and start-up overshoot. It also has an over voltage and over current protection circuit to protect against any faults, and an external fault detection pin to detect any sudden impedances or overcurrents. Additionally, it has a thermal shutdown protection circuit which shuts down the device when the temperature of the die exceeds the safe operating temperature, protecting it from excessive heat.

In summary, the MP172GJ-Z is an AC-DC power converter and offline switcher. It has a 2-stage operation to rectify AC voltage into DC voltage and regulate the DC voltage to a predefined output voltage. The built-in PFC helps reduce EMI and provide efficient power conversion. It also comes with a range of protective features to ensure reliable operation. With its wide voltage input range and efficient design, it is suitable for many applications such as power adapters, PC supplies, game consoles and others.

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