AP4341S

NEW PRODUCT AP4341S DYNAMIC PSR ACCELERATOR Description The AP4341S is an output voltage detector for Primary Side Control System. It is a low power loss solution. It detects the output voltage and provides a periodical signal when the output voltage is lower than a certain threshold. The periodical signal can be coupled by the transformer to the primary side and provided as an awakening signal for the main primary side controller. By fast response to secondary side voltage, the AP4341S can effectively improve the transient performance of Primary Side Control System. Pin Assignments (Top View) GND 3 The AP4341S will enable a discharge circuit when it detects the output voltage is higher than a certain threshold. The AP4341S can cooperate with some PSR ICs, such as AP3775, GP350H and GP350BX. The AP4341S is available in SOT23 package. 1 VCC 2 OUT SOT23 Features  Fast Detector of Supply Voltages  33kHz Output Pulse  No External Components  Low Power Loss for Green Mode Applications  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3) Applications  Adapters/Chargers for Cell/Cordless Phones, ADSL Modems, MP3 and Other Portable Apparatus  Standby and Auxiliary Power Supplies 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 An...