TOP245YN datasheet, circuit diagram, pdf, price

TOP245YN Pinout Equivalent

TOP245YN is a high-performance switched-mode power supply integrated circuit that works by monitoring the main inductor current to limit the current to achieve the control of the output voltage and output power

Pin function description

Note: Make sure that when designing and connecting the circuit, you should pay attention to the connection of each pin to avoid causing the circuit to fail to operate in the access circuit.

TOP245YN Same Type Replacement Model Table

Picture	Model	Manufacturers	Withstand Voltage Value	Switching Frequency Range	Maximum Duty Cycle	Rated Power	Encapsulation
	TOP245YN	Power Integrations	700V	65 kHz to 100 kHz	80%	40W	TO-220
	ICE3BR2565JF	Infineon Technologies	650V	25 kHz to 250 kHz	80%	106W	TO-220F
	IRIS4013K	International Rectifier	800V	50 kHz to 100 kHz	90%	120W	TO-220
	L6565	STMicroelectronics	600V	50 kHz to 150 kHz	75%	50W	SO-8
	LNK302DG	Power Integrations	700V	22 kHz to 132 kHz	60%	8.64W	SO-8
	UCC28630	Texas Instruments	600V	50 kHz to 100 kHz	80%	65W	SO-8

Note: The best alternative model for TOP245YN is the LNK302DG, which has the same withstand voltage values and a similar switching frequency range as the TOP245YN. The package form is similar.

When using ICE3BR2565JF as a replacement, it should be noted that it has a withstand voltage value of 650V, which is lower than the TOP245YN of 700V. It must be ensured that the voltage in the actual circuit does not exceed 650V.

The withstand voltage of the IRIS4013K is higher than that of the TOP245YN 700V. Its switching frequency range is 50 kHz to 100 kHz, which is in the TOP245YN range. The package is the same as the TOP245YN, with a higher power rating and can be replaced directly.

The withstand voltage of L6565 is lower than that of the TOP245YN 700V. It has a switching frequency range of 50 kHz to 150 kHz, which is wider than TOP245YN. It should be noted that the actual voltage in the circuit cannot be greater than 600V, and the package is different to consider whether it can be installed.

The withstand voltage of the UCC28630 is lower than that of the TOP245YN of 700V. Its switching frequency range is 50 kHz to 100 kHz, which is in the TOP245YN range. The issues to be noted are the same as L6565.