Document 788 Flyback Transformers For STMicroelectronics PM8803 PoE Plus Powered Device Controller • Designed to operate at 250 kHz in continuous conduction mode with 42 – 57 Volts input • 1500 Vrms, one minute isolation from the primary and bias windings to the secondary windings Core material Ferrite Terminations RoHS tin-silver over tin over nickel over phos bronze. Other terminations available at additional cost. Weight 6.5 g Ambient temperature –40°C to +85°C Storage temperature Component: –40°C to +85°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 175 per 13″ reel Plastic tape: 32 mm wide, 0.5 mm thick, 28 mm pocket spacing, 12.93 mm pocket depth PCB washing Only pure water or alcohol recommended InductanceInductance Leakage Turns ratio6 3 DCR max (Ohms)4 inductance5 Part Power at 0 A2 at Ipk 1 number (W) ±10% (µH) min (µH) pri sec bias max (µH) pri : sec pri : bias Ipk3 (A) 7 Output 1 : 0.25 1 : 0.469 1 : 0.1561 : 0.50 1.3 1.3 5 V, 4 A 3.3 V, 6 A HA3691-AL_ JA4173-AL_ 20 20 100 100 90.0 90.0 0.1850.0085 0.340 0.2110.0060 0.404 0.805 1.60 1. When ordering, please specify packaging code: HA3691-ALD Packaging:D=13″ machine-ready reel. EIA-481 embossed plastic tape (175 parts 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 measured at 250 kHz, 0.2 Vrms, 0 Adc. 3. Peak primary current drawn at minimum input voltage. 4. DCR for the secondary is with windings connected in parallel. 5. Leakage inductance is for the primary and is measured with the secondary shorted. 6. Turns ratio is with the 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. 0.080 2,03 0.590 14,99 Dot above pin1 0.500 max 12,70 0.004 /0,10 0.039 1,00 0.699 max 17,75 0.050 1,27 0.512 13,00 10 1 Recommended Land Pattern 1 Secondary windings to be connected in parallel on PC board 0.028 0,70 0.530 max 13,46 0.098 2,50 5 6 Dimensions are in These are preproduction products for electrical evaluation only. USparts +1-847-639-6400 [email protected] Specification subject to change without notice. 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] inches mm 0.098 2,50 Document 788 Revised 03/31/11 © 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.