DA2383-AL Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer

Document 523
Flyback Transformer ForNationalSemiconductor
LM5071 PoE PD Controller
• Designed to operate in continuous mode at 250 kHz
• NSC App Note AN-1430 specifies 84% efficiency at 3 A.
• 1500 Vrms 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.
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 Only pure water or alcohol recommended
Part
number¹
DA2383-AL_
L at 0 A²
±10% (µH)
127.0
L at Ipk³
Input
min (µH) voltage (V)
114.3
24 –60
DCR max
(Ohms)
0.310 (aux)
0.012 (sec)
0.255 (pri)
Leakage L⁴
max (µH)
Turns
ratios
1.25
2 : 1 (pri : aux)
6 : 1 (pri : sec )
Ipk³
(A)
Outputs⁵
1.0 10 V, 0.05 A (aux)
3.3 V, 4.0 A (sec)
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
12,70
max
0.039
1,00
5
0.530 _max
13,46
1
01.76,9795max
0.512
13,00
0.004 /0,10
0.028
0,70
6
0.098
10 _2,50
0.080
2,03
1
0.590
14,99
Recommended
Land Pattern
0.050
1,27
0.098
2,50
8
5
9
Pri
Sec
4
7
6
1
Aux
2
Secondary windings to be connected
in parallel on the PC board
Specifications subject to change without notice.
Please check our website for latest information.
Document 523 Revised 10/29/08
© Coilcraft, Inc. 2009