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. • Windings optimized for hiccup overload protection • 1500 Vrms, one minute 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 –40°C to +125°C Storage temperature Component: –40°C to +125°C. Tape and reel packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 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 Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf L at 0 A2 Part ±10% number1 (µH) HA3801-AL_ 166.5 * HA3802-AL_150.0 * HA3803-AL_166.5 Leakage L L at Ipk3 max (µH) Turns ratio minDCR max (Ohms) (µH) 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 5 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. * HA3802-AL and HA3803-AL ar not available for new designs. See HA3802-BL and HA3803-BL for improved versions of these parts Dot indicates pin 1 1 12 1 0.665 16,88 3. Peak primary current drawn at minimum input voltage. 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 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 12 0.07 1,79 7 0.865 max 21,97 0.335 max 8,51 0.590 14,98 0.693 17,60 0.098 2,5 Recommended Land Pattern 0.098 2,5 Parts manufactured prior to December 2011 may be marked differently. Secondary 9 10 8 5 XXXX Y 6 12 11 3 Primary HA380x-AL 0.677 max 17,20 0.079 2,01 0.135 3,43 0.028 0,72 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 2 Bias Drive 1 7 The secondary windings are to be connected in parallel on the PC board. 0.004 /0,10 Dimensions are in inches mm US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 696 Revised 08/01/12 © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.