Document 183-1 Magnetics for LM258x Flyback Regulator These standard flyback regulator transformers are designed They are available in surface mount and through hole for use with Texas Instruments LM2585, LM2586, LM2587 configurations. All feature 500 V isolation between wind- and LM2588 SIMPLE SWITCHER switching regulators. ings and a variety of available turns ratios. Volt-time Input Inductance Inductance product Leakage 1 DCR (Ohms) 2 Ref. Part voltage at 0 Adc at I pk max Inductance Turns ratio I pk number number (V) 15% (H) min (H) (Vsec) max (H) pri sec pri : sec Output (A) T1 (SM) Q4435-BL 4 6 22 19.0 166.5 0.7 0.020 0.025 1 : 1 5 V, 1.6 A 4.85 T1 (PC) Q4434-BL 4 6 22 19.8 162.0 2.0 0.028 0.028 1 : 1 5 V, 1.6 A 5.0 T2 (SM) Q4436-BL 4 6 22 17.6 166.5 0.5 0.025 0.23 (10-11) 1 : 2.5 12 V, 0.35 A 5.0 0.25 (9-8) 1 : 2.5 12 V, 0.35 A T2 (PC) Q4337-BL 4 6 22 19.8 162.0 2.0 0.030 0.32 (8-7) 1 : 2.5 12 V, 0.35 A 5.0 0.32 (6-5) 1 : 2.5 12 V, 0.35 A T3 (PC) Q4343-BL 18 36 85 76.5 364.5 3.5 0.150 0.011 (10-9) 1 : 0.8 12 V, 1.4 A 3.0 0.011 (7-6) 1 : 0.8 12 V, 1.4 A T4 (PC) Q4344-BL 18 36 85 76.5 364.5 3.5 0.145 0.20 (10-9) 1 : 0.8 12 V, 0.75 A 3.0 0.20 (7-6) 1 : 0.8 12 V, 0.75 A 0.03 (4-5) 1 : 0.35 5 V, 3.0 A T5 (SM) Q4437-BL 18 36 55 47.3 299.7 2.0 0.110 0.035 (10-11) 1 : 0.5 5 V, 1.8 A 3.0 0.30 (9-8) 1 : 1.167 12 V, 0.25 A 0.32 (4-5) 1 : 1.167 12 V, 0.25 A T5 (PC) Q4338-BL 18 36 66 59.4 499.5 3.5 0.090 0.039 (8-7) 1 : 0.5 5 V, 1.8 A 3.0 0.58 (6-5) 1 : 1.167 12 V, 0.25 A 0.60 (3-4) 1 : 1.167 12 V, 0.25 A T6 (SM) Q4438-BL 18 36 65 57.0 299.7 3.0 0.065 0.15 (10-11) 1 : 1.2 12 V, 0.63 A 3.0 0.15 (9-8) 1 : 1.2 12 V, 0.63 A T6 (PC) Q4339-BL 18 36 66 59.4 499.5 3.0 0.090 0.20 (8-7) 1 : 1.2 12 V, 0.63 A 3.0 0.24 (5-6) 1 : 1.2 12 V, 0.63 A T7 (SM) S6057-AL 4 6 47 40.0 233.1 2.0 0.065 0.065 1 : 1 5 V, 0.9 A 3.0 T7 (PC) S6000-AL 4 6 47 40.0 212.6 2.0 0.065 0.042 1 : 1 5 V, 0.9 A 3.0 Core material Ferrite 1. Leakage inductance measured across the primary at 0.10 Vrms, 100 kHz. 2. DC current at which the primary inductance is measured. Ambient temperature 40C to +85C 3. Electrical specifications at 25C. Weight Refer to Doc 362 Soldering Surface Mount Components before soldering. Q4337-BL: 11.4 g Q4435-BL: 9.0 g Q4338-BL: 11.5 g Q4436-BL: 8.7 g Q4339-BL: 11.6 g Q4437-BL: 8.2 g Q4343-BL: 25.1 g Q4438-BL: 8.6 g Q4344-BL: 23.1 g S6000-AL: 10.6 g Q4434-BL: 11.5 g S6057-AL: 8.2 g Storage temperature Component: 40C to +85C. Tray 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) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 PCB washing Tested with pure water or alcohol only. For other solvents, see Doc787 PCB Washing.pdf. Document 183-1 Revised 05/09/18 US +1-847-639-6400 sales coilcraft.com UK +44-1236-730595 sales coilcraft-europe.com Coilcraft Inc. 2018 This product may not be used in medical or high Taiwan +886-2-2264 3646 sales coilcraft.com.tw risk applications without prior Coilcraft approval. China +86-21-6218 8074 sales coilcraft.com.cn Specification subject to change without notice. Please check web site for latest information. Singapore + 65-6484 8412 sales coilcraft.com.sgDocument 183-2 Magnetics for LM258x Flyback Regulator Schematics Surface Mount (SM) T6 T1 T2 T5 Q4438-BL Q4435-BL Q4436-BL Q4437-BL 3 10 3 10 3 10 3 10 5V, 1.6 A 12 V, 0.35 A 5V, 1.8 A 12 V, 0.63 A 2 11 2 11 2 11 2 11 9 9 9 12 V, 0.63 A 12 V, 0.35 A 12 V, 0.25 A 8 8 8 4 T7 12 V, 0.25 A S6057-AL 5 3 10 5V, 0.9 A 2 11 Schematics Leaded (PC) T2 T3 T4 T1 Q4434-BL Q4337-BL Q4343-BL Q4344-BL 7 10 10 2 7 2 1 1 12 V, 0.35 A 12 V, 1.4 A 5V, 1.6 A 12 V, 0.75 A 8 9 9 1 8 1 2 2 6 7 7 12 V, 0.35 A 12 V, 1.4 A 12 V, 0.75 A 5 6 6 4 5V, 3.0 A 5 T6 T7 T5 Q4338-BL Q4339-BL S6000-AL 2 7 2 7 2 7 5V, 1.8 A 12 V, 0.63 A 5V, 0.9 A 8 1 8 1 8 1 6 6 12 V, 0.25 A 12 V, 0.63 A 5 5 3 12 V, 0.25 A 4 Document 183-2 Revised 05/09/18 US +1-847-639-6400 sales coilcraft.com UK +44-1236-730595 sales coilcraft-europe.com Coilcraft Inc. 2018 This product may not be used in medical or high Taiwan +886-2-2264 3646 sales coilcraft.com.tw risk applications without prior Coilcraft approval. China +86-21-6218 8074 sales coilcraft.com.cn Specification subject to change without notice. Please check web site for latest information. Singapore + 65-6484 8412 sales coilcraft.com.sg