Document 293 -1 CCFL Transformers FL3209 parts have been improved. The new FL3209-5L and FL3209-6L are electrically equivalent to the FL3209-1L, FL3209-2L, FL3209-3L and FL3209-4L, and have an improved physical design. We will continue to support existing customers of the superseded parts. The FL Series of transformers is designed for use in cold cathode fluorescent lamp (CCFL) power supplies at opTurns ratio Part number1 Schematic Package pri : sec pri : fb FL2015-1L_ FL2015-2L_ FL2015-3L_ FL2015-4L_ FL2015-5L_ FL2015-6L_ FL2015-7L_ FL2015-8L_ FL2015-9L_ FL2015-10L_ FL3209-5L_ FL3209-6L_ FL2810-1L_ B A A A A B A A A A C D C 1 1 1 1 1 1 1 1 1 1 5 5 4 1 : 67 1 : 67 1 : 100 1 : 50 1 : 125 1 : 67 1 : 67 1 : 86 1 : 100 1 : 93 1 : 100 1 : 93 1 : 100 erating frequencies up to 100 kHz. With output power from 3.5 to 6.0 Watts, these transformers are ideal for LCD backlight applications. They are available in two different gull wing, surface mount packages and one inboard configuration for height restricted designs. Free evaluation samples are available by contacting Coilcraft or ordering them on-line at www.coilcraft.com. Vrms3 Output Inductance2 Imax (Watts) nom (µH) sec (mA) pri sec 1 : 0.19 1 : 0.19 1 : 0.25 1 : 0.14 1 : 0.38 1 : 0.19 1 : 0.19 1 : 0.21 1 : 0.25 1 : 0.25 — 1 : 0.17 — 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 4.5 3.5 3.5 4.5 43 43 19 44 20 48 50 31 22 40 48 40 35 5.0 5.0 5.0 7.0 7.0 11.0 11.0 11.0 11.0 11.0 5.0 5.0 7.0 22 23 16 32 12 23 23 18 16 17 16 17 15 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 1500 Vinst max4 pri sec 25.0 29.0 20.0 40.0 16.0 29.0 29.0 23.0 20.0 21.0 20.0 21.0 16.5 DCR max (Ohms) pri sec fb 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 1650 0.220 0.220 0.190 0.220 0.160 0.160 0.160 0.132 0.132 0.175 0.350 0.400 0.220 285 285 285 165 330 176 176 176 176 675 362 800 500 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.50 — 0.08 — Isolation (tested for one minute) 1. When ordering, please specify a packaging code: FL2810-1LD Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic tape. Package 1: 400 parts per full reel. Package 4: 750 parts per full reel. Package 5: 1000 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 is measured across both halves of the primary. 3. Vrms = continuous voltage. 4. Vinst = instantaneous voltage at startup. 5. Ambient operating temperature range −40°C to +85°C. 6. Electrical specifications at 25°C. Part number Primary to secondary Primary to feedback All windings to core FL2015 FL3209 FL2810 1500 Vrms 500 Vrms 1500 Vrms 500 Vrms 500 Vrms — 1500 Vrms 1500 Vrms 1500 Vrms Note: For Schematic B, primary is connected to secondary at pin 3. The primary is not isolated from the secondary. Schematics A 1 B 1 8 Secondary 5 2 5 2 For Royer topology 9 Feedback 4 Primary 3 Secondary 4 9 For Royer topology Secondary 4 1 7 For flyback topology Feedback 5 7 For Royer topology Specifications subject to change without notice. Please check our website for latest information. Document 293-1 © Coilcraft, Inc. 2009 6 Primary 3 Primary 3 Secondary 4 2 6 2 Primary 3 Feedback D C 3 Revised 02/10/09 Document 293 -2 CCFL Transformers Package 1 0.310 max 7,87 1 10 0.044 1,13 0.004/0,10 0.975 min 24,77 0.965 max 24,51 0.825 max 20,96 0.028 typ 0,70 1 10 0.610 max 15,49 0.075 min 1,91 7 Recommended Land Pattern 0.098 cen 2,50 7 0.050 1,27 6 10 6 0.098 cen 2,50 1 Weight: 5.5 – 6.1 g Terminations: Tin-silver over tin over nickel over phos-bronze Tape and reel: 400/13″ reel 44 mm tape width For packaging data see Tape and Reel Specifications section. Package 4 0.205 max 5,21 9 1 0.004/0,10 0.037 0,93 1.275 max 32,39 0.028 0,70 9 1.295 32,89 1.100 27,95 1 1.163 29,54 0.063 cen 1,60 7 0.402 max 10,21 0.240 6,10 7 9 6 0.020 (7×) 0,50 0.057 1,45 6 Recommended Land Pattern 0.030 0,76 1 0.066 min 1,68 0.319 8,10 0.063 1,60 Weight: 3.6 g Terminations: Tin-silver over tin over nickel over phos-bronze Tape and reel: 750/13″ reel 44 mm tape width For packaging data see Tape and Reel Specifications section. Specifications subject to change without notice. Please check our website for latest information. Document 293-2 © Coilcraft, Inc. 2009 Revised 02/10/09 Document 293 -3 CCFL Transformers Package 5 – In-board mounting Dot indicates pin 1 0.016 typ 0,40 8 1 8 Recommended Land Pattern 0.020 0,51 1 Minimum PCB cutout 0.366 max 9,30 0.382 × 1.173 9,70 × 29,80 7 6 0.225 max 5,72 7 0.063 cen 1,60 7 6 0.137 min 3,48 1.440 min 36,58 0.150 max 3,81 6 1.165 29,60 0.063 cen 1,60 In-board Mounting 1.439 max 36,55 Weight: 3.8 – 4.0 g Terminations: Tin-silver over tin over copper over copper-steel Tape and reel: 1000/13″ reel 56 mm tape width For packaging data see Tape and Reel Specifications section. Specifications subject to change without notice. Please check our website for latest information. Document 293-3 © Coilcraft, Inc. 2009 Revised 02/10/09