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| Document 724 Flyback Transformer For Texas Instruments UCC28600 Flyback Green Mode Controller * Triple-output flyback transformer * Designed to operate at 50 kHz with universal ac input * 3000 Vrms isolation from primary and bias to secondaries Core material Ferrite Terminations RoHS compliant tin-silver over tin over copper over steel. Other terminations available at additional cost. Weight 9.7 g Ambient temperature -40C to +85C Storage temperature Component: -40C to +85C. Packaging: -40C to +80C Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Packaging 100 per tray PCB washing Only pure water or alcohol recommended Part number HA4018-AL L at 0 A1 10% (mH) 2.2 L at Ipk2 min (mH) 1.7 DCR max (Ohms) 1.55 (pri) 0.350 (bias) 0.061 (sec 1) 0.305 (sec 2) 0.450 (sec 3) Leakage L3 max (H) 28.5 Turns ratios 6.4 : 1 (pri : bias) 8.2 : 1 (pri : sec 1) 15 : 1 (pri : sec 2) 5.3 : 1 (pri : sec 3) Ipk2 (A) 0.3 Outputs +15 V, 0.05 A (sec 1) +5 V, 0.35 A (sec 2) -15V, 0.125 A (sec 3) +12 V, 20 mA (bias) 0.823 max 20,9 1. Inductance is for the primary, measured at 50 kHz, 0.1 Vrms, 0 Adc. 2. Ipk is peak primary current drawn at minimum input voltage. 3. Leakage inductance is for the primary winding, measured at 50 kHz, 0.1 Vrms, 0 A with all secondary pins shorted. 4. Electrical specifications at 25C. Dot indicates pin 1 0.472 max 12,0 1 5 +15 V @ 0.05 A +5 V @ 0.35 A GND 4 Pri 2 3 Sec1 6 0.130 min 3,3 0.689 17,5 0.134 3,4 5 0.024 AE 0,6 Sec2 7 0.689 17,5 0.197 5,0 1 8 Bias 4 Sec3 8 -15 V @ 0.125 A 0.197 5,0 1 8 4 5 0.823 max 20,9 Dimensions are in inches mm 0.041 AE 1,03 Recommended PC Board Layout Specifications subject to change without notice. Please check our website for latest information. Document 724 Revised 09/29/09 (c) Coilcraft, Inc. 2009 |
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