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AP3783 Datasheet(PDF) 1 Page - Diodes Incorporated |
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AP3783 Datasheet(HTML) 1 Page - Diodes Incorporated |
1 / 17 page AP3783 Document number: DS37429 Rev. 6 - 2 1 of 17 www.diodes.com December 2015 © Diodes Incorporated AP3783 PRIMARY SIDE REGULATED SWITCHING MODE POWER SUPPLY CONTROLLER Description The AP3783 is a high performance AC/DC power supply controller for battery charger and adapter applications. The controller regulates the output voltage and current in the primary side by piece-wise Pulse Frequency Modulation (p-PFM) in discontinuous conduction mode (DCM). The AP3783 provides accurate constant voltage (CV), constant current (CC) and outstanding dynamic performance without requiring an opto-coupler. It also eliminates the need of loop compensation circuitry while maintaining stability. The AP3783 provides valley turn-on function, operating frequency Jitter function (about 5.5% frequency change every 256μs) from light to full load range and 3-segment drive current to improve the power supply EMI performance. The AP3783 also has built-in fixed cable voltage drop compensation (10%, 7% and 4% of nominal system output voltage to meet various cables with different length and gauge) and adjustable line voltage compensation. The AP3783 is packaged in SOT26. Applications Adapters/Chargers LED Lighting Standby and Auxiliary Power Supplies Pin Assignments (Top View) CS GND VCC CPC FB DRI 1 2 3 4 5 Pin 1 Mark 6 SOT26 Features Less than 75mW Standby Power Consumption Meet Efficiency Requirement of COC Trier2 Valley Turn-on to Reduce Switching Loss and Improve EMI Piece-wise Frequency Reduction to Enhance Conversion Efficiency and Suppress Audio Noise Over Voltage Protection (OVP) Over Temperature Protection (OTP) Short Circuit Protection (SCP) with Hiccup 3-Segment Drive Current for Radiative EMI Suppression Operating Frequency Jitter Function for Conductive EMI Suppression Drive MOSFET for 5W to 30W Battery Charger/Adapter Applications SOT26 SMD Package Comply with Level 3 of IPC/JEDEC J-STD- 033A Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free " Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. |
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