TOP262EN

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Integrated circuits (ICs) have been around for a number of years, however, technology advances and miniaturization of components has allowed for multiple different ICs to be combined in order to produce something which is more than the sum of its parts. Off-line switchers are a type of IC used in a variety of applications, such as solar devices and power distribution systems, and the TOP262EN is one such device.

Overview of TOP262EN

The TOP262EN is an AC/DC converter developed by Power Integrations, and it is designed to provide high efficiency, low component count and low cost solutions for applications requiring an off-line switcher. This device is capable of delivering up to 130 watts of power and includes a current-mode control IC and a high-voltage MOSFET driver. The TOP262EN has a wide range of safety features, including auto-recovery over-voltage protection, short-circuit protection, open-loop protection and over/under-voltage detection.

Application Fields

The TOP262EN is suitable for a wide range of applications, including LED lighting, automation systems and industrial motor controls. LED lighting applications often require a reliable source of power, and the TOP262EN is able to supply the necessary current with a minimum of components. Automation systems also require reliable power, and the TOP262EN is an ideal choice for such setups due to its low component count, high efficiency and cost-effectiveness.

The TOP262EN is also suitable for industrial motor control applications, as it can provide reliable power to motors with its current-mode control IC and high-voltage MOSFET driver. In addition, the device is able to handle wide input voltage ranges and offers a range of protection features which make it advantageous for industrial applications.

Working Principle

The TOP262EN is a current-mode control IC which uses a fixed-frequency oscillator to provide a reference voltage. The reference voltage is compared to a signal from the secondary side of the converter, and the comparison produces a pulse-width-modulated signal that controls the power switch. When the power switch is activated, energy is transferred from the primary to the secondary side of the converter.

In order to ensure that the primary side output stays constant, feedback is used to adjust the power switch duty-cycle so that the voltage is regulated. The TOP262EN is also equipped with a protection circuit which monitors the output and will automatically shut off the power switch if it detects any fault or over-current conditions. The protection circuit includes features such as over/under voltage protection, short circuit protection and open-loop protection.

Conclusion

The TOP262EN is an AC/DC converter designed for applications requiring an off-line switcher. The device is able to provide up to 130 watts of power and is suitable for LED lighting, automation systems and industrial motor control applications. It also includes a number of safety features, such as auto-recovery over-voltage protection, short-circuit protection, open-loop protection and over/under-voltage detection. The TOP262EN is a reliable and cost-effective device which is able to provide reliable power with a minimum of components.

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