AP3301

Quasi-Resonant PWM Controller; Very Low Start-up Current\nMulti-Mode Control\nQuasi-Resonant Operation with Valley Lock\nFixed Frequency CCM Operation at Low Line Heavy Load\nNon-Audible-Noise Quasi-Resonant Control\nInternal Slope Compensation\nSoft Start During Startup Process\nFrequency Fold Back for High Average Efficiency\nSecondary Winding Short Protection with FOCP\nFrequency dithering for Reducing EMI\nVCC Maintain Mode\nUseful Pin Fault Protection: SENSE Pin Floating, FB/Opto-coupler Open/Short\nComprehensive System Protection Feature: VCC Over Voltage Protection (VOVP), Over Load Protection (OLP)\nBrown Out Protection (BNO)\nSecondary Side OVP (SOVP)\nMini Size Package of SOT26\nTotally Lead-free & Fully RoHS Compliant\nHalogen and Antimony Free. “Green” Device;

The AP3301 is a peak-current control, Quasi-Resonant (QR) PWM controller which is optimized for high performance, low standby power and cost effective offline flyback converters.\nAt no load or light load, the IC will enter the burst mode to minimize standby power consumption. The minimum switching frequency (about 20kHz) is set to avoid the audible noise. At medium load, the IC will enter valley lock QR mode with frequency foldback to improve system efficiency and EMI performance. The maximum switching frequency (about 120kHz) is set to clamp the QR frequency to improve efficiency. At low line input & heavy load, when switching frequency decreases below 62KHz with output load increasing, the IC will enter CCM mode with fixed switching frequency of 62kHz to optimize low line power conversion efficiency. Furthermore, the frequency dithering function is built in to reduce EMI emission.\nInternal slope compensation allows more stable peak-current mode control over wide range of input voltage and load conditions. Internal piecewise linear line compensation ensures constant output power limit over entire universal line voltage range.\nComprehensive protection features are included, such as brown out protection, cycle-by-cycle current limit (OCP), VCC Over Voltage Protection (VOVP), Secondary-Side Output OVP (SOVP), internal OTP, Over Load Protection (OLP) and pins’ fault protection.

AP3301

QUASI-RESONANT PWM CONTROLLER

AP3301

DC-DC降压型恒压芯片;

AP3301K6TR-G1

QUASI-RESONANT PWM CONTROLLER

AP3301EV1

包装：盒 类别：开发板，套件，编程器 评估板 - DC/DC 与 AC/DC（离线）SMPS 描述：EVAL BOARD FOR AP3301

AP3301K6TR-G1

Package：SOT-23-6；包装：卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带 类别：集成电路（IC） AC DC 转换器，离线开关 描述：IC OFFLINE SWITCH FLYBACK SOT26