APR3415B Datasheet | Diodes Incorporated

SECONDARY SIDE SYNCHRONOUS RECTIFICATION SWITCHER Description APR3415B is a secondary side bo IC, which bines an NChannel MOSFET and a driver circuit designed for synchronous rectification (SR) in DCM operation. It also integrates output voltage detect function for primary side control system. The N-Channel MOSFET has been optimized for low gate charge, low RDS(ON), fast switching speed and body diode reverse recovery performance. The synchronous rectification can effectively reduce the secondary side rectifier power dissipation and provide high performance solution. By sensing MOSFET drain-to-source voltage, APR3415B can output ideal drive signal with less external ponents. It can provide high performance solution for 5V output voltage application. Same as AP4341, APR3415B detects the output voltage and provides a periodical signal when the output voltage is lower than a certain threshold. By fast response to secondary side voltage, APR3415B can effectively improve the transient performance of primary side control system. Pin Assignments (Top View) DRISR 1 VDET 2 AREF 3 VCC 4 8 DRAIN 7 DRAIN 6 GND 5 GND SO-8 (Type CJ) Applications The APR3415B is available in SO-8 (Type CJ) package. Features - Synchronous Rectification for DCM Operation Flyback - Eliminate Resonant Ring Interference - Fast Detector of Supply Voltages - Fewest External ponents - Totally Lead-free & Fully Ro HS pliant (Notes 1 & 2) - Halogen and Antimony Free. “Green” Device (Note 3) - 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 (Ro HS), 2011/65/EU (Ro HS 2) & 2015/863/EU (Ro HS 3) pliant. 2. See https://.diodes./quality/lead-free/ 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...