? coilcraft, inc. 2009 specifications subject to change without notice. please check our website for latest information. document 183-1 document 183-1 revised 10/31/08 magnetics for lm258x flyback regulator these standard flyback regulator transformers are de- signed for use with national semiconductor lm2585, lm2586, lm2587 and lm2588 simple switcher ? switching regulators. volt-time input induct ance inductance product leakage ref. part voltage at 0 adc at i pk max inductance 1 dcr (ohms) turns ratio i pk 2 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 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. they are available in surface mount and through hole configurations. all feature 500 v isolation between wind- ings and a variety of available turns ratios. core material ferrite ambient temperature ?40c to +85c weight q4337-bl: 11.4 g q4338-bl: 11.5 g q4339-bl: 11.6 g q4343-bl: 25.1 g q4344-bl: 23.1 g q4434-bl: 11.5 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 q4435-bl: 9.0 g q4436-bl: 8.7 g q4437-bl: 8.2 g q4438-bl: 8.6 g s6000-al: 10.6 g S6057-AL: 8.2 g
? coilcraft, inc. 2009 magnetics for lm258x flyback regulator specifications subject to change without notice. please check our website for latest information. schematics C surface mount (sm) schematics C leaded (pc) 5 v, 1.6 a q4435-bl t1 3 10 2 11 5 v, 1.6 a q4434-bl t1 2 7 1 8 5 v, 0.9 a S6057-AL t7 3 10 2 11 q4436-bl 12 v, 0.35 a 12 v, 0.35 a t2 3 10 9 2 11 8 q4337-bl 12 v, 0.35 a 12 v, 0.35 a t2 2 7 6 1 8 5 q4438-bl 12 v, 0.63 a 12 v, 0.63 a t6 3 10 9 2 11 8 q4437-bl 5 v, 1.8 a 12 v, 0.25 a 12 v, 0.25 a t5 3 10 9 4 2 11 8 5 q4437-bl 5 v, 1.8 a 12 v, 0.25 a 12 v, 0.25 a t5 2 7 6 3 1 8 5 4 5 v, 0.9 a q4434-bl t7 2 7 1 8 q4344-bl 5 v, 3.0 a 12 v, 0.75 a 12 v, 0.75 a t4 1 10 7 4 2 9 6 5 q4339-bl 12 v, 0.63 a 12 v, 0.63 a t6 2 7 6 1 8 5 q4343-bl 12 v, 1.4 a 12 v, 1.4 a t3 1 10 7 2 9 6 document 183-2 document 183-2 revised 10/31/08
? coilcraft, inc. 2009 magnetics for lm258x flyback regulator specifications subject to change without notice. please check our website for latest information. document 183-3 document 183-3 revised 10/31/08 recommended land pattern top view 12 11 7 6 max max max 0.610 15,49 1.00 25,4 0.60 15,24 0.75 19,05 0.733 18,62 0.150 3,81 0.145 3,68 0.100 2,54 0.615 15,62 0.114 0.020 2,90 0,51 0.843 21,41 0.030 0,76 0.100 2,54 0.150 3,81 0.004/0,10 surface mount (q4435-bl, q4436-bl, q4437-bl, q4438-bl, S6057-AL) standoffs 1 1 4 5 8 (1 place) (5 places) recommended board layout 0.060 1,52 0.025 0.025 0,635 0,635 max max max max 0.950 24,13 0.514 13,06 0.700 17,78 0.825 20,96 0.15 3,81 0.20 5,08 0.180 4,57 bottom view leaded C t1, t2, t5, t6, t7 (q4434-bl, q4337-bl, q4338-bl, q4339-bl, s6000-al) standoffs 1 5 6 10 0.620 15,75 1 recommended board layout max max max 1.10 27,94 1.10 27,94 0.0346 0,879 0.060 1,52 0.950 24,13 0.180 4,57 max (1 place) (7 places) 0.15 3,81 0.20 5,08 bottom view leaded C t3, t4 (q4343-bl, q4344-bl) terminations rohs tin-silver over tin over nickel over phos bronze. packaged 81 parts per tray terminations rohs tin-silver over tin over nickel over phos bronze. packaged 49 parts per tray terminations rohs tin-silver over tin over copper. packaged 30 parts per tray
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