DA2383-AL

Document 523
Flyback Transformer
For Texas Instruments
LM5071 PoE PD Controller
• Designed to operate in continuous mode at 250 kHz
• TI App Note AN‑1430 specifies 84% efficiency at 3 A.
• 1500 Vrms, one minute isolation from primary and aux to
secondary
Core material Ferrite
Terminations RoHS tin-silver over tin over nickel over phos bronze.
Other terminations available at additional cost.
Weight 5.97 g
Ambient temperature –40°C to +85°C
Storage temperature Component: –40°C to +85°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 with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf
Part
L at 0 A2
L at Ipk3
Input
number1
±10%
(µH) min (µH) voltage (V)
DA2383-AL_
127.0
114.3
24 –60
DCR max Leakage L4Turns Ipk3
Outputs5
(Ohms)
max (µH)
ratios
(A)
0.310 (aux)
1.25
2 : 1(pri : aux) 1.0 10 V, 0.05 A (aux)
0.012 (sec)
6 : 1(pri : sec )
3.3 V, 4.0 A (sec)
0.255 (pri)
1. When ordering, please specify packaging code:
DA2383-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 is for the primary, measured at 200 kHz, 0.2 Vrms, 0 Adc.
3.Ipk is peak primary current drawn at minimum input voltage.
4. Leakage inductance measured on the primary winding with all secondary pins shorted.
5. Output of the seconday is with the windings connected in parallel.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Dot above pin1
0.500 max
12,70
0.004 /0,10
0.039
1,00
0.699 max
17,75
0.512
13,00
5
0.028
0,70
6
0.590
14,99
1
8
9
Pri
Sec
4
7
6
1
Aux
Recommended
Land Pattern
0.530 max
13,46
1
0.080
2,03
0.050
1,27
5
2
0.098
2,50
0.098
10
2,50
Dimensions are in
inches
mm
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 windings to be connected
in parallel on the PC board
Document 523 Revised 10/29/08
© Coilcraft Inc. 2013
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.
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