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AiT Semiconductor Inc.
www.ait-ic.com
AP8366
AC-DC PWM CONTROLLER LOW STANDBY-POWER QUASI-RESONANT
PRIMARY-SIDE CONVERTER
DESCRIPTION
The AP8366 consists of a Low Standby-Power Quasi-Resonant (QR) Primary-Side controller and a avalanche-rugged smart power VDMOSFET (AP8366-A 700V,AP8366-B 800V), specifically designed for a high performance AC/DC charger or adaptor with minimal external components. AP8366 operates in primary-side sensing and regulation, so opto-coupler and TL431 could be eliminated. Because of internal HV Start-up circuit, the system with AP8366 can achieve less than 30mW standby power consumption (230VAC). In CV mode, multi-mode and quasi resonant technique is utilized to achieve high efficiency, avoid audible noise and make the system meeting Energy star class VI.