MC33025DWG

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PMIC - AC DC Converters, Offline Switchers are integral elements of modern electronic systems. The MC33025DWG is a good example of such a device. It is a bipolar power switch intended for use in low-power off-line switching power supplies. It is highly efficient, allowing for the use of just one power supply input from the AC mains. The MC33025DWG is designed for easy interfacing with control circuitry, providing an optimal solution for mains-powered electronic systems that require reliable operation.

The MC33025DWG is a monolithic integrated power switch based on a high-voltage bipolar NPN transistor device. It includes a low-power driver circuit and a built-in current limiting circuit. This allows for easy control and simplifies the design of the system. The device typically operates at a maximum of 600V and is able to handle currents up to 2.5A continuous.

The driver circuit consists of a differential amplifier, low-power FETs, and an RC oscillator to generate a pulse-width-modulated (PWM) signal. The driver circuit has built-in protection from over-voltage and over-temperature. It also has an open-collector output for external shutdown control. The bipolar transistor is controlled through its base by the driver circuit, with the base voltage being determined by the external resistor and capacitor values.

The MC33025DWG has several applications. For example, it can be used to control a switching power supply in a computer or other electronic device. It can also be used to control off-line AC/DC converters. The device is highly reliable, with built-in current limiting, over-voltage, and over-temperature protection to ensure stable operation even under severe conditions.

Overall, the MC33025DWG is a highly efficient and reliable device for use in low-power off-line switching power supplies, particularly in applications such as computer and other electronic devices. Its built-in protection, simple control, and easy-to-use interface make it a great choice for such systems.

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