Document 439 Flyback Transformers For Texas Instruments TPS23750 PoE Powered Device Controller • Isolated synchronous flyback transformers developed for Texas Instruments PMP929 reference design. • Operates up to 500 kHz with 18 – 72 V input • 1500 Vrms, one minute isolation primary and bias to secondary Core material Ferrite Terminations RoHS tin-silver (96.5/3.5) 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, 0.35 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 Leakage L5 L at 0 A2 L at Ipk3 max (µH) Turns ratio Ipk3 Part ±10% min DCR max (Ohms) Drive number1(µH) (µH) pri sec4 drive bias pri drive pri : sec6pri : drivepri : bias(A) Output7output C1173-AL_166.5 150.0 0.7700.0200.523 1.12 2.50 0.400 6.5 : 13.7 : 12.0 : 1 1.23.3 V, 3 A 5.6 V, 10 mA C1174-AL_150.0 135.0 0.515 0.023 0.570 0.88 2.00 0.400 5.0 : 13.2 : 12.25 : 1 1.2 5.0 V, 2 A 7.5 V, 10 mA GA3562-BL_166.5 150.0 0.740 0.100 0.456 1.15 2.05 0.245 2.0 : 14.0 : 12.0 : 1 1.212 V, 0.83 A 6.0 V, 10 mA 1. When ordering, please specify packaging code: C1174-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 1 0.665 16,88 12 0.07 1,79 7 0.865 max 21,97 0.098 2,5 Recommended Land Pattern 0.098 2,5 Parts manufactured prior to December 2011 may be marked differently. 0.335 max 8,51 0.590 14,98 0.693 17,60 Secondary 9 10 8 5 XXXX Y 6 12 11 3 Primary C117x-AL 0.677 max 17,20 0.079 2,01 0.135 3,43 0.028 0,72 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. Bias winding output is 10 V, 20 mA. 8. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 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 439 Revised 12/21/11 © 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.