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AP3303 - QUASI-RESONANT PWM CONTROLLER

Datasheet Summary

Description

The AP3303 is a peak-current control, Quasi-Resonant (QR) PWM controller which is specially designed for offline power supply that requires ultra-low standby power, high-power density and comprehensive protection.

Features

  • are included, such as brown out protection, cycle-by-cycle current limit, VCC Over Voltage Protection (VOVP), Secondary-side Output OVP (SOVP) and UVP (SUVP), internal OTP, Over Load Protection (OLP) and pins’ fault protection. Combined with Diodes Incorporated’s synchronous controller APR347, the AP3303 system can achieve the higher power conversion efficiency and the better thermal performance. AP3303 QUASI-.

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Datasheet Details

Part number AP3303
Manufacturer DIODES
File Size 839.47 KB
Description QUASI-RESONANT PWM CONTROLLER
Datasheet download datasheet AP3303 Datasheet
Additional preview pages of the AP3303 datasheet.

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Full PDF Text Transcription

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NEW PRODUCT Description The AP3303 is a peak-current control, Quasi-Resonant (QR) PWM controller which is specially designed for offline power supply that requires ultra-low standby power, high-power density and comprehensive protection. It can coordinate with secondary side USBPD or quick charger controller which can provide a flyback charger solution. At no load or light load, the IC will enter the burst mode to minimize standby power consumption. The minimum switching frequency (typical: 24kHz) is set to avoid the audible noise. When the load increases, the IC will enter QR mode with frequency foldback to improve system efficiency and EMI performance. The maximum switching frequency (typical: 120kHz) is set to clamp the QR frequency to reduce switching power loss.
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