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| DTPA1074 80 Watt Flyback Transformer * * * * * * * * Power Integrations TOPSwitch-GX Family Transformer Designed for TOP245-247 Chip Sets* Universal Input 85-265 Volts Low Leakage Inductance Designed to meet IEC950 Cost Effective Design 15v, 15v, & 15v Secondaries Custom modifications available (contact DTM engineering) 3 7 +15 V PRIMARY 8 +V 1 9 +15 V 5 +15 V BIAS 10 6 11 +15 V 12 Parameter Lp Llkg SRF Rp Rb Rs Rs Rs Primary Inductance Leakage Inductance Self Resonant Frequency DC Resistance Primary DC Resistance Bias DC Resistance Secondary DC Resistance Secondary DC Resistance Secondary Electrical Characteristics Min Typ Max Units 128 1.3 .110 .040 .011 .011 .011 141 154 4 uH uH MHZ Ohms Ohms Ohms Ohms Ohms Conditions 1-3 1v @ 132khz 1-3 1v @ 132khz (short 3,4,5,6,7,8,9,10) 1-3 1-3 @ 25 degC 5-6 7-8 9-10 11-12 Parameter Po Vo Recommended Output Power Output Voltage Min 20 12v Performance Specifications Typ Max Units 80 15v,15v,15v 48v Watts Volts Conditions Total Output Parallel / Individual / Series Parameter Top Tr DWV DWV DWV Temperature Range Temperature Rise Isolation Voltage Isolation Voltage Isolation Voltage Absolute Maximum Ratings Min Max Units - 40 3000 1500 500 + 130 50 degC degC Vrms Conditions @ Rated Power Pri,bias-sec Pri-bias Sec-Sec Specifications subject to change without notice. Turns Ratio available on request. * 80 Watt design uses Top 247 www.dtmagnetics.com DT Magnetics International, Inc. 140 Crosby Road Dover, NH 03820 Phone (603) 742-4375 Fax (603) 742-9165 Date code 0229 sales@dtmagnetics.com engineering@dtmagnetics.com Local Sales Rep Label DTPA1074 Package Specifications Typical Voltage Combinations 3 7 +48 V 1.24" Max. PRIMARY 8 +V 1.10" Max. 1 9 +31 V 5 +15 V BIAS 10 6 11 +15 V 1 6 12 3 7 +15 V 1.20" Max. PRIMARY 8 RTN 12 Bottom View 7 +V 1 9 +15 V 5 +15 V BIAS 10 RTN 6 11 .197" 0.98" -15 V 12 3 .985" .052" Dia. Hole PRIMARY 7 +30 V Suggested Pad Layout 8 +V 1 9 +15 V Measurements are in inches Specifications subject to change without notice 5 +15 V BIAS 10 RTN 6 11 Output Voltage can be varied up to 20% by adjusting the feedback voltage divider. -15 V 12 www.dtmagnetics.com DT Magnetics International, Inc. 140 Crosby Road Dover, NH 03820 Phone (603) 742-4375 Fax (603) 742-9165 Date code 0229 sales@dtmagnetics.com engineering@dtmagnetics.com Local Sales Rep Label |
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