TOP221G-TL

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PMIC (Power Management ICs) is a type of specialized ICs that are designed to facilitate, manage, optimize and enhance the power supply systems in different applications. Their task is to ensure that the power to the different components is optimized, secure and consistent as required. As far as AC DC converters, offline switchers and TOP221G-TL are concerned, these are unique, specialized ICs with their own distinct application fields and working principles.

TOP221G-TL

TOP221G-TL is a high power isolated offline DC/DC converter IC operating in the range of 18 - 75V. It has a maximum operating temperature range of -40 °C to +85 °C. This IC is capable of providing a regulated output voltage of 20V with a maximum current of 1.5A. It is mainly used for AC/DC equipment, situations where the input current is not controlled, and industrial solutions.

Application Field

TOP221G-TL is mainly used in applications where it is necessary to convert an unregulated input voltage, such as an AC voltage, into a regulated output voltage. This makes it useful in various AC/DC applications and in situations where the input current is not controlled. It is particularly suitable for consumer electronics, power supplies, telecom power converters, industrial equipment, and other similar applications.

Working Principle

TOP221G-TL uses a modern self-supplied primary control architecture with flicker-free start-up, low drop-out voltage, low FET RDSon and high power efficiency. Its high integration simplifies the operation, making it easier to use. The working principle of TOP221G-TL is based on average current mode control, which ensures a regulated output voltage with a high power efficiency. The output voltage is regulated by comparing the average inductor current with the voltage error amplifier feedback voltage.

Conclusion

TOP221G-TL is an important specialized IC for applications of AC/DC conversion, isolated offline DC/DC conversion, and industrial solutions. Its modern self-supplied primary control architecture with various features makes it suitable for various applications. Its working principle is based on the average current mode control, which ensures a regulated output voltage with a high power efficiency.

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