English
Language : 

PA6284_15 Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer
Document 1134
Flyback Transformer ForSTMicroelectronics
STEVAL-ILL055V1
• Developed for STMicroelectronics STEVAL-ILL055V1 offline
LED drive
• Input voltage: 185 – 264 Vac
• 1500 Vrms, one minute isolation from the primary and aux
windings to the secondary winding
Core material Ferrite
Terminations  RoHS tin-silver over tin over nickel over phos bronze.
Weight  6.2 g
Ambient temperature  –40°C to +85°C
Maximum part temperature  +125°C (ambient + temp rise)
Storage temperature  Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Resistance to soldering heat  Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL)  1 (unlimited floor life at <30°C /
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
Packaging  175 per 13″ reel  Plastic tape:  32 mm wide,
0.5 mm thick, 28 mm pocket spacing, 12.93 mm pocket depth
PCB washing  Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Inductance
Part
Power   at 0 A2
  number1
(W)
±10% (mH)
PA6284-AL_
11
1.40
 
  DCR max (Ohms)3
pri   sec   aux
3.03 0.085 0.57
  inLdeuacktaagnec e4 Turns ratio
max (µH)
pri : sec   pri : aux
  Output5
25
1 : 0.136 1 : 0.144 12 – 18 V, 0.64 A
1. When ordering, please specify packaging code:
PA6284-ALD
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic tape (175 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 measured at 100 kHz, 1.0 Vrms, 0 Adc.
3. DCR for the secondary is with windings connected in parallel.
4. Leakage inductance is for the primary and is measured with the secondary shorted.
5. Output is of the secondary winding. Aux winding output is 20 V, 10 mA.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
0.500 max
12,70
0.039
1,00
Dot above pin1
0.699
17,75
max
0.004 /0,10
5
Primary
3
2
Aux
1
6
Secondary
10
0.080
2,03
0.590
14,99
0.050
1,27
Recommended
Land Pattern
1
Dimensions are in
inches
mm
0.098
2,50
1
0.530
13,46
max
5
0.512
13,00
0.028
10 0,70
6
0.098
2,50
These parts are preproduction products for electrical evaluation only. Document 1134  Revised 09/16/14
Specification subject to change without notice.