TNY256PN

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PMIC, or power management integrated circuits, are the essential component of modern electronics, providing efficient and effective power conversion solutions. TNY256PN offline switcher is one of the most commonly used PMICs, offering versatile and reliable operation for a variety of applications. In this article, we will discuss the application field and working principle of the TNY256PN.

The TNY256PN is suitable for various AC DC converters and off-line switcher applications, such as low-power adapters, low-power non-isolated AC DC converters, and single-output constant current LED lamps. Its maximum current and power handling capabilities can be increased to 6A and 600W respectively through the simple use of a PTH series heatsink. This makes the TNY256PN well-suited for many high power applications.

The TNY256PN uses a current-mode fixed frequency peak current mode control architecture, and requires only two external components – a current-sense resistor and a voltage-sensing feedback divider – to implement complete control loops. This makes the TNY256PN an ideal solution for applications requiring quick and easy setup and adjustment. Furthermore, since the third winding or an opto-coupler are not required, the TNY256PN provides a compact, low-cost solution.

The TNY256PN also integrates an adjustable soft-start feature, which minimizes input inrush current at start-up and protects against short-term overloads. During normal operation, the frequency is adjustable from 300 kHz to 600 kHz, thus allowing for flexible design for different loads. Furthermore, the TNY256PN minimizes power dissipation and reduces EMI, making it well-suited for noise-sensitive applications. Lastly, the TNY256PN is compatible with universal input voltage range from 90Vac to 265Vac and output current up to 6A.

In summary, the TNY256PN offline switcher is a highly versatile solution for various AC DC converters and off-line switcher applications, offering efficient, reliable and low-cost operation. Its ability to handle high currents and provide adjustable soft-start feature, adjustable frequency, and compatible with universal input voltage range make it a great choice for a diverse range of applications.

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