PWM Current-Mode Controller For Free Running Quasi-Resonant Operation

The NCP1338 combines a true current mode Modulator and a demagnetization detector which ensures full Borderline/Critical Conduction Mode in any load/line conditions together with minimum drain voltage switching (Quasi-Resonant operation). The transformer core reset detection is done internally, without using any external signal, due to the Soxyless concept. The frequency is internally limited to 130 kHz, preventing the controller from operating above the 150 kHz CISPR-22 EMI starting limit. By ON Semiconductor
NCP1338 's PackagesNCP1338 's pdf datasheet

NCP1338 Pinout, Pinouts
NCP1338 pinout,Pin out
This is one package pinout of NCP1338,If you need more pinouts please download NCP1338's pdf datasheet.

NCP1338 Application circuits
NCP1338 circuits
This is one application circuit of NCP1338,If you need more circuits,please download NCP1338's pdf datasheet.

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