TNY266PN datasheet, equivalent & circuit diagram

{621} TNY266PN Low Power Offline Switching IC – Explained

TNY266PN Pinout Equivalent

TNY266PN is a manufacturer of high-efficiency, low-power off-line switching Power supply chips that are widely used in power supply circuits such as low-power power adapters, chargers and LED drivers. The chip is available in two packages (DIP-8 or SMD-8), and because of its high integration, low cost and excellent performance, it is one of the best choices for low-power power supply designs. Next, this paper will introduce TNY266PN in detail, including important parameters, pin functions and replaceable chips.

TNY266PN Pins are defined as follows:

In the design of isolated AC-DC power supply circuit, due to the differences in chip internal architecture, protection mechanism and control logic of different manufacturers, it is usually impossible to achieve perfect compatibility directly. If you want to replace the original chip, there are two possible replacement solutions: the same brand of the same series of products: in the design process, we will definitely give priority to the upgrade/downgrade model provided by the same manufacturer (such as TNY266PN→TNY264PN or TNY275PN); Third party compatible models: pin-compatible cores produced by some manufacturers through reverse design or licensing. Here are a few chips that I think are compatible.

Picture	Name	Type	Withstand Voltage	Power	Package
	TNY276PN	Isolate	700V	19W	DIP-8C
	TNY277GN	Isolate	700V	19W	SMD-7P
	TNY279PN	Isolate	700V	18W	DIP-8
	NCP1015AP100G	Isolate	700V	19W	DIP-7
	TNY278PN	Isolate	700V	28W	DIP-8C