Document 293 -1 CCFL Transformers The FL Series of transformers is designed for use in cold cathode fluorescent lamp (CCFL) power supplies at operating 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. Turns ratio Vrms3 Vinst max4 Part Output Inductance2 Imax number1 Schematic Package pri : sec pri : fb (Watts) nom (µH) sec (mA) pri sec pri sec FL2015-1L_ B 1 1 : 67 1 : 0.19 6.0 43 5.0 22 1600 25.0 2000 FL2015-2L_ A 1 1 : 67 1 : 0.19 6.0 43 5.0 23 1600 29.0 2000 FL2015-3L_ A 1 1 : 100 1 : 0.25 6.0 19 5.0 16 1600 20.0 2000 FL2015-4L_ A 1 1 : 50 1 : 0.14 6.0 44 7.0 32 1600 40.0 2000 FL2015-5L_ A 1 1 : 125 1 : 0.38 6.0 20 7.0 12 1600 16.0 2000 FL2015-6L_ B 1 1 : 67 1 : 0.19 6.0 48 11.0 23 1600 29.0 2000 FL2015-7L_ A 1 1 : 67 1 : 0.19 6.0 50 11.0 23 1600 29.0 2000 FL2015-8L_ A 1 1 : 86 1 : 0.21 6.0 31 11.0 18 1600 23.0 2000 FL2015-9L_ A 1 1 : 100 1 : 0.25 6.0 22 11.0 16 1600 20.0 2000 FL2015-10L_ A 1 1 : 93 1 : 0.25 4.5 40 11.0 17 1600 21.0 2000 FL3209-1L, FL3209-3L Not recommended for new designs. Order FL3209-5L, which is electrically equivalent. FL3209-2L, FL3209-4L Not recommended for new designs. Order FL3209-6L, which is electrically equivalent. FL3209-5L_ C 5 1 : 100 — 3.5 48 5.0 16 1600 20.0 2000 FL3209-6L_ D 5 1 : 93 1 : 0.17 3.5 40 5.0 17 1600 21.0 2000 FL2810-1L_ C 4 1 : 100 — 4.5 35 7.0 15 1500 16.5 1650 6. 0.350 0.400 0.220 362 — 800 0.08 500 — Isolation (tested for one minute) 1. When ordering, please specify a packaging code: 2. 3. 4. 5. DCR max (Ohms) pri sec fb 0.220 285 0.10 0.220 285 0.10 0.190 285 0.10 0.220 165 0.10 0.160 330 0.10 0.160 176 0.10 0.160 176 0.10 0.132 176 0.10 0.132 176 0.10 0.175 675 0.05 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. Inductance is measured across both halves of the primary. Vrms = continuous voltage. Vinst = instantaneous voltage at startup. Ambient temperature range: −40°C to +85°C. Storage temperature range: Component: –40°C to +85°C Tape and reel packaging: –40°C to +80°C Electrical specifications at 25°C. Part Primary to number secondary FL2015 1500 Vrms FL3209 500 Vrms FL2810 1500 Vrms Primary to feedback 500 Vrms 500 Vrms — All windings to core 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 Primary 3 5 2 Feedback 4 For Royer topology 1 8 9 Secondary 5 2 Primary 3 9 4 For Royer topology 6 Primary 3 Secondary 4 Feedback 2 6 2 Primary 3 Secondary D C 3 7 For full-bridge topology US +1-847-639-6400 [email protected] 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] Secondary 4 1 Feedback 7 5 For Royer topology Document 293-1 Revised 09/13/11 © Coilcraft Inc. 2016 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. 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 0.063 cen 1,60 1.163 29,54 0.120 3,05 0.066 min 1,68 6 7 0.402 max 10,21 CL Recommended Land Pattern 7 6 0.020 (7×) 0,50 0.120 3,05 9 0.057 1,45 0.157 4,00 0.157 4,00 1 0.030 (8×) 0,76 0.063 (3×) 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. US +1-847-639-6400 [email protected] 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] Document 293-2 Revised 09/13/11 © Coilcraft Inc. 2016 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. 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 0.137 min 3,48 6 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. US +1-847-639-6400 [email protected] 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] Document 293-3 Revised 09/13/11 © Coilcraft Inc. 2016 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.