EPC3129-x

www.DataSheet4U.com Flyback Power Transformer ELECTRONICS INC. EPC3129-X Used in SMPS Flyback Topology Designed for use with Power Integration Chip Reinforced Insulation (Triple Insulated Wire) UL 94V-0 Recognized Components UL 1446 Class F Insulation System Very Low Core Loss Electrical Parameters @ 25° C PCA Part Number Chipset Voltage (Vdc) V in Primary OCL (µH ± 10%) Current (Amp.) Sec. 2 N 1.5 Sec. 3 .05 .05 Sec. 4 --.03 Schematic EPC3129-1 EPC3129-2 TOP244Y TOP243P @ 10 KHz, V out V out V out Sec. V out 0.1 Vrms 4 1 2 1 3 N 2.5 120-375 12 876 15 --3.3 0.9 120-375 5 1000 15 30 Switching Frequency : 132 KHz Isolation : 4500 Vrms Dielectric Rating (Vrms) A B 1 sec. 4500 or 60 sec. 3750 Pri. to all Sec. Wdg’s & Core 1 sec. 4500 or 60 sec. 3750 Between Sec. Wdg’s to Core Note : “N” means Not Required/No Connections 1 sec. 1500 Between Pri. Wdg & Bias Schematic A 1 V in Pri. 3 Sec. 3 (Fb/Bias) 4 5 9 7 Sec. 2 6 Sec. 3 (Fb/Bias) 10 Sec. 1 Pri. 3 4 5 1 Schematic B 10 Sec. 4 9 Sec. 1 7 6 Sec. 2 * Shield is optional Package 1.130 (28.80) 1.130 (28.80) .138 (3.50) PCA EPC3129-X D.C. .846 Max. (21.50) .787 (20.00) Suggested Layout .051 (1.30) .028 Sq. (.700) .197 (5.00) .787 Typ. (20.00) .197 (5.00) Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25 PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 Product performance is limited to specified parameters. Data is subject to change without prior notice. ...