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AP1682E Datasheet(PDF) 2 Page - Diodes Incorporated |
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AP1682E Datasheet(HTML) 2 Page - Diodes Incorporated |
2 / 10 page AP1682E Document number: DS36648 Rev. 1 - 2 2 of 10 www.diodes.com September 2014 © Diodes Incorporated AP1682E A Product Line of Diodes Incorporated Typical Applications Circuit T1 1 OUT + VCC FB OUT CS GND VS VPK R6 C5 R3 R11 R12 R16 R17 R15 D1 D2 CY1 C6 R19 D3 C7 R18 R8 R9 Q1 R10 AC Input F1 VR1 L2 DB1 C2 L1 R2 C1 R1 ZD2 R13 C4 R4 R5 R7 C3 R14 ZD1 R20 5 3 4 AP1682E 8 5 7 4 6 2 3 Pin Descriptions Pin Number Pin Name Function 1 NC No connection 2 VS The rectified input voltage sensing pin. The pin is detecting the instantaneous rectified sine waveform of input voltage 3 VPK The rectified input voltage peak value sensing pin. The pin is detecting the rectified sine waveform peak value of input voltage 4 CS Primary current sensing 5 FB This pin captures the feedback voltage from the auxiliary winding. FB voltage is used to control no load output voltage and determine acceleration stop point at start-up phase 6 GND Ground. Current return for gate driver and control circuits of the IC 7 OUT Gate driver output 8 VCC Supply voltage of gate driver and control circuits of the IC Functional Block Diagram Regulator & Bias OVP Tonsec Detector 0.1V 1.8 PFM Tons UVLO COMP EA UVLO pro CV_CTRL PFM Driver R Q S R Q S CC_CTRL FB CS VS VCC OUT GND Acceleration Start Control Peak Current Control & LEB Input Current Shaping and Constant Current Control VPK 2 3 4 5 6 7 8 |
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