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AP3127 - GREEN MODE PWM CONTROLLER

General Description

The AP3127/H is a current mode PWM controller which is optimized for high performance, low standby power and cost effective offline flyback converters.

Key Features

  • are included, such as cycle-bycycle current limit (OCP), VCC Over Voltage Protection (VOVP), internal OTP, Over Load Protection (OLP) and pins’ fault protection. AP3127/H combines secondary side OVP (SOVP) and UVP. (Top View) Pin 1 Mark GND 1 FB 2 SOVP/UVP 3 6 GATE 5 VCC 4 SENSE SOT26 Features.
  • Very Low Start-up Current.
  • Current Mode Control.
  • Non-audible-noise Green-mode Control.
  • Internal Slope Compensation.
  • Soft Start During Startup Process.
  • Frequency Fold Bac.

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Full PDF Text Transcription for AP3127 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for AP3127. For precise diagrams, and layout, please refer to the original PDF.

NEW PRODUCT AP3127/H GREEN MODE PWM CONTROLLER Description Pin Assignments The AP3127/H is a current mode PWM controller which is optimized for high performance, low stan...

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mode PWM controller which is optimized for high performance, low standby power and cost effective offline flyback converters. The AP3127/H coordinating with Diodes’ secondary side controller AP4320 and protocol decoding IC AP4370 provide a Flyback charger/adapter solution compatible to Qualcomm Quick Charge 2.0 protocol. The PWM switching frequency at normal operation is internally fixed (about 65kHz for AP3127 and 100kHz for AP3127H). In middle load, the IC will enter green mode to improve system efficiency with the help of frequency foldback. A minimum switching frequency (about 20kHz) is set to avoid the audible noise.

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