AP3984 Datasheet





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AP3984 Datasheet - PRIMARY SIDE POWER SWITCHER

AP3984   AP3984  

Datasheet: AP3984 datasheet

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Description: NEW PRODUCT AP3984 PRIMARY SIDE POWER S WITCHER FOR OFF-LINE SMPS Description The AP3984 is a power switcher for powe r supplies with better conversion effic iency, better voltage & current accurac y, and improved protection functions. T ypical applications include charger, ad apter for ADSL, home appliance power su pply and PC auxiliary power supplies. T he AP3984 with built in BJT, regulates the output voltage and current in the p rimary side by piece-wise pulse frequen cy modulation (p-PFM) and primary curre nt peak amplitude modulation (AM) in di scontinuous conduction mode (DCM). The system operating frequency reduces line arly from heavy load to light load in e ach interval of the p-PFM, and opera


Manufacture Part Number Description

Diodes

AP3984

PRIMARY SIDE POWER SWITCHER




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