TNY278PN datasheet & circuit diagram | pinout, price

TNY278PN Pinout Equivalent

tny278pn pinout Picture

TNY278PN is an isolated switching Power supply chip manufactured by Power Integrations for a wide range of applications in mobile phone chargers, low power light drivers, and a variety of circuit applications requiring AC to DC. TNY278PN is widely used in power supply design due to its low price and very intensive integration. This article will explain the pin definition of the chip and the selection of alternative chips.

TNY278PN Pin function (two packages DIP-8C and SMD-8C)Alternative model recommendation:

Isolated AC-DC power chip, most of them are not universal, if you want to choose pin to pin may only choose the same model with the manufacturer or choose others to copy the model. Here are a few chips that I think are better alternatives:
1 TNY280PN: TNY278PN is the same company’s upgrade product, with higher output power and higher efficiency, and can be fully compatible with TNY278PN.

TNY280PN Picture

2 TNY274PN: Also the same company’s product of TNY278PN, equivalent to the TNY278PN output power is slightly lower, but also can be fully compatible with TNY278PN.

TNY274PN Picture

3 VIPer22A is an AC-DC chip produced by ST, which has basically the same function as TNY278PN, but the external pins are slightly different, and the circuit needs to be redesigned.

VIPer22A Picture

4 FSL206MR is a chip produced by onsemi company, the internal structure and function are basically the same as TNY278PN, but the external pin is slightly adjusted, and the PCB design needs to be modified.

FSL206MR Picture