TOP253PNAU

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The TOP253PN by Power Integrations is a designed for offline switching power supplies AC DC converters. It is used to convert an incoming AC voltage to a lower and stable DC voltage, and is suitable for use in applications such as battery chargers and other types of switched mode power supplies. The device is a low cost but highly efficient converter, capable of delivering up to 150 W of power. Furthermore, the integrated protection features, including reset, overvoltage, and short-circuit protection, provide for a highly robust and reliable device.

The TOP253PN integrates the components typically required for an offline switcher into one monolithic package, significantly reducing the size, complexity and cost of the design. The device also integrates both primary and secondary power control, making it easier to use and more efficient. Additionally, the controller includes features such as soft-start, frequency jitter and burst mode operation, which improve the overall circuit performance.

The input of the TOP253PN is a rectified and filtered AC voltage. This AC input is then stepped down using a MOSFET synchronous rectifier, allowing for a very high efficiency. The output of the synchronous rectifier is then fed into the control circuitry which controls the MOSFET(s). The output voltage of the device is also a MOSFET output, making the TOP253PN capable of outputting a wide range of voltages, from 0.6V to 6V. The MOSFET output is also adjustable, making it possible to set it for a fixed voltage or for a dynamic response to changes in the input or load.

The control circuit of the TOP253PN is based on a current-mode control loop. This current-mode control enables an optimal dynamic response and suppression of power switching transients through periodic jitter in the frequency and cyclic burst mode operation. Furthermore, the control circuit includes a start-up circuit that ensures a soft start-up and prevents excessive inrush current. The TOP253PN also includes a number of protection features to protect the device in case of overload and overvoltage.

The TOP253PN is an incredibly useful device, providing a cost-effective solution for designing switched mode power supplies. Its integrated power control and protection features, as well as its small size, make it ideal for a variety of applications. Additionally, the high efficiency and wide output voltage range of the device make it suitable for use in AC line-activated battery chargers and other types of offline power supplies.

The specific data is subject to PDF, and the above content is for reference