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| Document 696 Flyback Transformers For TI TPS23753 PoE Interface and Converter Controller * Isolated synchronous flyback transformers developed for Texas Instruments TPS23753 for use at 125 kHz. Listed as T2 on SLVU245 for evaluation module TPS23753EVM. * Windings optimized for hiccup overload protection * 1500 Vrms isolation primary and bias to secondary windings Core material Ferrite Terminations RoHS tin-silver over tin over nickel over phos bronze. Other terminations available at additional cost. Weight 5.0 - 5.3 g Ambient temperature -40C to +125C Storage temperature Component: -40C to +125C. Packaging: -40C to +80C Resistance to soldering heat Max three 40 second reflows at +260C, parts cooled to room temperature between cycles 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 200 per 13 reel Plastic tape: 44 mm wide, 0.4 mm thick, 28 mm pocket spacing, 9.6 mm pocket depth PCB washing Only pure water or alcohol recommended L at 0 A2 Part 10% number1 (H) HA3801-AL_ 166.5 HA3802-AL_ 150.0 HA3803-AL_ 166.5 Leakage L5 L at Ipk3 DCR max (Ohms) max (H) Turns ratio min (H) pri sec4 drive bias pri drive pri:sec6 pri:drive pri:bias 150.0 0.735 0.0225 0.510 0.985 2.50 0.45 6.5:1 3.7:1 2.0:1 135.0 0.520 0.0275 0.525 0.770 2.00 0.40 5.0:1 3.2:1 2.25:1 150.0 0.760 0.101 0.500 1.10 2.05 0.245 2.0:1 4.0:1 2.0:1 Ipk3 Drive (A) Output7 output 1.2 3.3 V, 3 A 5.6 V, 10 mA 1.2 5.0 V, 2 A 7.5 V, 10 mA 1.2 12 V, 0.83 A 6.0 V, 10 mA 1. When ordering, please specify packaging code: HA3803-ALD Packaging: D = 13 machine ready reel. EIA-481 embossed plastic tape (200 per full reel). B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter D instead. 2. Inductance is for the primary, measured at 100 kHz, 0.1 Vrms. 3. Peak primary current drawn at minimum input voltage. Dot indicates pin 1 1 12 4. DCR for secondary is with windings connected in parallel. 5. Leakage inductance for the primary is with the secondary and drive windings shorted; leakage inductance for the drive winding is with the secondary windings shorted. 6. Turns ratio is with both secondary windings connected in parallel. 7. Output of the secondary is with the windings connected in parallel. 10 W output from 36 - 57 V PoE input or 24 V adapter; 6 W output from 12 V adapter. Bias winding output is 10 V, 20 mA. 8. Electrical specifications at 25C. Refer to Doc 362 "Soldering Surface Mount Components" before soldering. 0.07 1,79 12 0.028 0,72 0.135 3,43 1 0.665 16,88 3 Primary 12 11 Secondary 9 10 8 Drive 7 0.677 max 17,20 6 HA380x-AL 7 5 0.098 2,5 0.865 max 21,97 Recommended Land Pattern 0.098 2,5 2 Bias 1 0.335 max 8,51 0.590 14,98 0.079 2,01 0.693 17,60 0.004 /0,10 The secondary windings are to be connected in parallel on the PC board. Dimensions are in inches mm Specifications subject to change without notice. Please check our website for latest information. Document 696 Revised 10/28/08 (c) Coilcraft, Inc. 2009 |
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