© Coilcraft, Inc. 2010
Specifications subject to change without notice.
Please check our website for latest information.
CCFL Transformers
Document 293 -1
Document 293-1 Revised 08/10/07
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 2: 1000 parts per full reel.
Package 3: 1000 parts per full reel.
Package 4: 800 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.
Part
Turns ratio
Output Inductance
2
Imax
Vrms
3
Vinst max
4
DCR max (Ohms)
number
1
Schematic Package pri : sec pri : fb (Watts) nom (µH) sec (mA) pri sec pri sec pri sec fb
FL2015-1L_ B 1 1 : 67 1 : 0.19 6.0 43 5.0 22 1600 25.0 2000 0.220 285 0.10
FL2015-2L_ A 1 1 : 67 1 : 0.19 6.0 43 5.0 23 1600 29.0 2000 0.220 285 0.10
FL2015-3L_ A 1 1 : 100 1 : 0.25 6.0 19 5.0 16 1600 20.0 2000 0.190 285 0.10
FL2015-4L_ A 1 1 : 50 1 : 0.14 6.0 44 7.0 32 1600 40.0 2000 0.220 165 0.10
FL2015-5L_ A 1 1 : 125 1 : 0.38 6.0 20 7.0 12 1600 16.0 2000 0.160 330 0.10
FL2015-6L_ B 1 1 : 67 1 : 0.19 6.0 48 11.0 23 1600 29.0 2000 0.160 176 0.10
FL2015-7L_ A 1 1 : 67 1 : 0.19 6.0 50 11.0 23 1600 29.0 2000 0.160 176 0.10
FL2015-8L_ A 1 1 : 86 1 : 0.21 6.0 31 11.0 18 1600 23.0 2000 0.132 176 0.10
FL2015-9L_ A 1 1 : 100 1 : 0.25 6.0 22 11.0 16 1600 20.0 2000 0.132 176 0.10
FL2015-10L_ A 1 1 : 93 1 : 0.25 4.5 40 11.0 17 1600 21.0 2000 0.175 675 0.50
FL3209-1L_ C 2 1 : 100 — 3.5 48 5.0 16 1600 20.0 2000 0.350 400 —
FL3209-2L_ D 2 1 : 93 1 : 0.17 3.5 40 5.0 17 1600 21.0 2000 0.350 800 0.08
FL3209-3L_ C 3 1 : 100 — 3.5 48 5.0 16 1600 20.0 2000 0.350 400 —
FL3209-4L_ D 3 1 : 93 1 : 0.17 3.5 40 5.0 17 1600 21.0 2000 0.350 800 0.08
FL2810-1L_ C 4 1 : 100 — 4.5 35 7.0 15 1500 16.5 1650 0.220 500 —
C
2
3
6
4
7
Primary
Secondary
2
1
A
3
5
8
4
9
Primary
Secondary
Feedback
Primary
Secondary
Feedback
B
2
1
3
5
3
4
9
D
1
2
3
4
6
5
7
Primary
Secondary
Feedback
Schematics
The FL Series of transformers is designed for use in cold
cathode fluorescent lamp (CCFL) power supplies at oper-
ating frequencies up to 100 kHz.
With output power from 3.5 to 6.0 Watts, these transform-
ers are ideal for LCD backlight applications. They are
available in four different gull wing or surface mount
packages, including one in-board configuration for height
restricted designs. Isolation is tested for one minute at
1500 Vrms between the primary and secondary windings
and from each winding to the core.
Free evaluation samples are available by contacting
Coilcraft or ordering them on-line at www.coilcraft.com.
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.
For Royer For Royer For flyback For Royer
topology topology topology topology
© Coilcraft, Inc. 2010
Specifications subject to change without notice.
Please check our website for latest information.
CCFL Transformers
Package 2
Document 293-2 Revised 08/10/07
Document 293 -2
0.044
1,13
0.600
15,24
1
10
1
6
7
10
0.310
7,87
0.028
0,70
typ
max
max
0.965
24,51
max
0.098
2,50
0.098
2,50
cen
1
6
7
10
0.050
1,27
0.975
24,77
min
0.825
20,96
max
Recommended
Land Pattern
cen
0.075
1,91
min
0.004/0,10
Package 1
0.225
5,72
0.366
9,30
8
1
6
7
8
1
6
7
0.016
0,40
typ
0.063
1,60
cen
1.127
28,63
max
max
1.30
33,02
1.395
35,43
max
Recommended
Land Pattern
0.020
0,51
0.15
3,81
min
0.063
1,60
cen
max
1
8
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.
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.