Flyback Power Transformer ELECTRONICS INC. EPC3130-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) TOP249Y TOP234Y TOP247Y TOP247Y TOP244Y Viper 100 Current (Amp.) @ 10 KHz, 0.1 Vrms V out 3 V out 4 19 273 120-375 15 19 N 12 490 15 120-375 12 N 35 342 15 120-375 35 N 12 466 15 120-375 24 24 5 466 15 120-375 24 N 24 256 13 120-395 24 N • Switching Frequency : 132 KHz • Isolation : 4500 Vrms • V in EPC3130-1 EPC3130-2 EPC3130-3 EPC3130-4 EPC3130-5 EPC3130-6 Primary OCL (µH ± 10%) V out 1 V out 2 Sec. 1 Sec. 2 Sec. 3 Sec. 4 1.8 1.9 1.0 2.0 1.0 1.8 1.8 1.9 1.0 0.1 0.8 1.8 .05 .05 .05 .05 .05 .05 N N N .025 N N Dielectric Rating (Vrms) 1 sec. 4500 or 60 sec. 3750 1 sec. 4500 or 60 sec. 3750 Between Wdg’s to Core Pri. to all Sec. Wdg’s & Core 1 sec. 1500 Between Pri. Wdg & Bias • Note : “N” equals Not Required/No Connection • Schematic 12 Sec. 1 1 11 3 10 V in Pri. Sec. 2 Sec. 3 5 (Fb/Bias) 6 9 8 Sec. 4 7 Shield is optional Package 1.330 Max. (33.78) 1.320 Typ. (33.55) 12 Pin 1 I.D. PCA EPC3130-X Date Code .937 Max. (23.80) 7 Suggested Layout 1.00 (25.40) .051 (1.30) 1 .138 (3.50) .200 (5.08) 1.00 Typ. (25.40) .031 Sq. (.800) 6 .200 (5.08) 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. CSC3130-X Rev. 7 9/27/04 FT TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com