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| Document 183-1 Magnetics for LM258X Flyback Regulator These standard flyback regulator transformers are designed for use with National Semiconductor LM2585, LM2586, LM2587 and LM2588 SIMPLE SWITCHER(R) switching regulators. They are available in surface mount and through hole configurations. All feature 500 V isolation between windings and a variety of available turns ratios. Ref. number T1 (SM) T1 (PC) T2 (SM) T2 (PC) T3 (PC) T4 (PC) Part number Q4435-BL Q4434-BL Q4436-BL Q4337-BL Volt-time Input Inductance Inductance product Leakage DCR (Ohms) voltage at 0 Adc at I pk max Inductance1 (V) 15% (H) min (H) (Vsec) max (H) pri sec 4-6 4-6 4-6 4-6 22 22 22 22 85 85 19.0 19.8 17.6 19.8 76.5 76.5 166.5 162.0 166.5 162.0 364.5 364.5 0.7 2.0 0.5 2.0 3.5 3.5 0.020 0.028 0.025 0.030 0.150 0.145 0.025 0.028 0.23 (10-11) 0.25 (9-8) 0.32 (8-7) 0.32 (6-5) 0.011 (10-9) 0.011 (7-6) 0.20 (10-9) 0.20 (7-6) 0.03 (4-5) 0.035 (10-11) 0.30 (9-8) 0.32 (4-5) 0.039 (8-7) 0.58 (6-5) 0.60 (3-4) 0.15 (10-11) 0.15 (9-8) 0.20 (8-7) 0.24 (5-6) 0.065 0.042 Turns ratio pri : sec 1:1 1:1 1 : 2.5 1 : 2.5 1 : 2.5 1 : 2.5 1 : 0.8 1 : 0.8 1 : 0.8 1 : 0.8 1 : 0.35 1 : 0.5 1 : 1.167 1 : 1.167 1 : 0.5 1 : 1.167 1 : 1.167 1 : 1.2 1 : 1.2 1 : 1.2 1 : 1.2 1 :1 1:1 Output 5 V, 1.6 A 5 V, 1.6 A 12 V, 0.35 A 12 V, 0.35 A 12 V, 0.35 A 12 V, 0.35 A 12 V, 1.4 A 12 V, 1.4 A 12 V, 0.75 A 12 V, 0.75 A 5 V, 3.0 A 5 V, 1.8 A 12 V, 0.25 A 12 V, 0.25 A 5 V, 1.8 A 12 V, 0.25 A 12 V, 0.25 A 12 V, 0.63 A 12 V, 0.63 A 12 V, 0.63 A 12 V, 0.63 A 5 V, 0.9 A 5 V, 0.9 A Ipk2 (A) 4.85 5.0 5.0 5.0 3.0 3.0 Q4343-BL 18 - 36 Q4344-BL 18 - 36 T5 (SM) Q4437-BL 18 - 36 55 47.3 299.7 2.0 0.110 3.0 T5 (PC) Q4338-BL 18 - 36 66 59.4 499.5 3.5 0.090 3.0 T6 (SM) T6 (PC) T7 (SM) T7 (PC) Q4438-BL 18 - 36 Q4339-BL 18 - 36 S6057-AL S6000-AL 4-6 4-6 65 66 47 47 57.0 59.4 40.0 40.0 299.7 499.5 233.1 212.6 3.0 3.0 2.0 2.0 0.065 0.090 0.065 0.065 3.0 3.0 3.0 3.0 1. Leakage inductance measured across the primary at 0.10 Vrms, 100 kHz. 2. DC current at which the primary inductance is measured. 3. Electrical specifications at 25 C. Refer to Doc 362 "Soldering Surface Mount Components" before soldering. Core material Ferrite Ambient temperature -40C to +85C Weight Q4337-BL: Q4338-BL: Q4339-BL: Q4343-BL: Q4344-BL: Q4434-BL: 11.4 g 11.5 g 11.6 g 25.1 g 23.1 g 11.5 g Q4435-BL: Q4436-BL: Q4437-BL: Q4438-BL: S6000-AL: S6057-AL: 9.0 g 8.7 g 8.2 g 8.6 g 10.6 g 8.2 g Storage temperature Component: -40C to +85C. Packaging: -40C to +80C Resistance to soldering heat (SM parts) 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) Mean Time Between Failures (MTBF) 26,315,789 hours PCB washing Only pure water or alcohol recommended Specifications subject to change without notice. Please check our website for latest information. Document 183-1 Revised 10/31/08 (c) Coilcraft, Inc. 2009 Document 183-2 Magnetics for LM258X Flyback Regulator Schematics - Surface Mount (SM) T1 Q4435-BL 3 10 3 T2 Q4436-BL 10 3 T5 Q4437-BL 10 3 T6 Q4438-BL 10 5 V, 1.6 A 2 11 2 12 V, 0.35 A 11 9 2 5 V, 1.8 A 11 9 2 12 V, 0.63 A 11 9 12 V, 0.35 A 8 12 V, 0.25 A 8 4 12 V, 0.63 A 8 T7 S6057-AL 3 10 12 V, 0.25 A 5 5 V, 0.9 A 2 11 Schematics - Leaded (PC) T1 Q4434-BL 2 7 2 T2 Q4337-BL 7 1 T3 Q4343-BL 10 1 T4 Q4344-BL 10 5 V, 1.6 A 1 8 1 12 V, 0.35 A 8 6 2 12 V, 1.4 A 9 7 2 12 V, 0.75 A 9 7 12 V, 0.35 A 5 12 V, 1.4 A 6 12 V, 0.75 A 6 4 5 V, 3.0 A T5 Q4437-BL 2 7 2 T6 Q4339-BL 7 2 T7 Q4434-BL 7 5 5 V, 1.8 A 1 8 6 1 12 V, 0.63 A 8 6 1 5 V, 0.9 A 8 12 V, 0.25 A 5 3 12 V, 0.63 A 5 12 V, 0.25 A 4 Specifications subject to change without notice. Please check our website for latest information. Document 183-2 Revised 10/31/08 (c) Coilcraft, Inc. 2009 Document 183-3 Magnetics for LM258X Flyback Regulator Surface Mount (Q4435-BL, Q4436-BL, Q4437-BL, Q4438-BL, S6057-AL) 1.00 max 25,4 1 Top view 12 0.145 3,68 1 0.610 15,49 0.030 0,76 0.150 3,81 0.100 2,54 0.60 max 15,24 0.75 max 19,05 0.004/0,10 6 0.150 3,81 0.100 2,54 0.114 x 0.020 2,90 x 0,51 0.615 15,62 0.843 21,41 7 0.733 18,62 Recommended Land Pattern Terminations RoHS tin-silver over tin over nickel over phos bronze. Packaged 81 parts per tray Leaded - T1, T2, T5, T6, T7 (Q4434-BL, Q4337-BL, Q4338-BL, Q4339-BL, S6000-AL) 0.950 max 24,13 4 Bottom view 5 1 0.514 13,06 0.15 (1 place) 3,81 0.700 max 17,78 0.825 max 20,96 1 8 0.20 (5 places) 5,08 0.060 1,52 0.180 max 4,57 0.025 x 0.025 0,635 x 0,635 Standoffs Recommended Board Layout Terminations RoHS tin-silver over tin over nickel over phos bronze. Packaged 49 parts per tray Leaded - T3, T4 (Q4343-BL, Q4344-BL) 1.10 max 27,94 5 Bottom view 0.0346 0,879 6 1 0.620 15,75 0.15 (1 place) 3,81 0.950 max 24,13 1.10 max 27,94 0.20 (7 places) 5,08 0.060 1,52 1 10 0.180 max 4,57 Standoffs Recommended Board Layout Terminations RoHS tin-silver over tin over copper. Packaged 30 parts per tray Specifications subject to change without notice. Please check our website for latest information. Document 183-3 Revised 10/31/08 (c) Coilcraft, Inc. 2009 |
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