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NA5730_13 Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer | |||
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Document 1023
Flyback Transformer ForTITPS23751â/â2
PD Controllers
⢠Flyback transformer for Texas Instruments TPS23751 and
TPS23752 PD Controllers
⢠Input: 33 â 57 V
⢠1500 Vrms, one minute isolation from primary and bias to
secondary and drive
Core materialâFerrite
Terminationsâ RoHS tin-silver-copper over tin over nickel over phos
bronze. Other terminations available at additional cost.
Weightâ 11.3 g
Ambient temperatureâ â40°C to +125°C
Storage temperatureâ Component: â40°C to +125°C.
Tape and reel packaging: â40°C to +80°C
Resistance to soldering heatâ Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL)â 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 13â³ reelâ Plastic tape: 44 mm wide,
0.4 mm thick, 28 mm pocket spacing, 11.9 mm pocket depth
PCB washingâ Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf
Part
â L atâ0âA2
±10%
â LâamtâiInp k3 â DCR
max
(Ohms)4
â number1 (µH) (µH) pri â sec bias drive
NA5730-AL_ 62
55.8 0.107 0.004 0.122 0.060
Leakage L5 Turns ratio6â â
max (µH) priâ:âsec priâ:âbias priâ:âdrive
2.0
1 : 0.125 1 : 0.29 1 : 0.125
â Ipk3
(A)
2.1
Output7
5.0 V, 4.5 A
1. When ordering, please specify a packaging code:
NA5730-ALD
Packaging: D = 13â³ 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 measured at 250 kHz, 0.1 Vrms, 0 Adc.
3. Peak primary current drawn at minimum input voltage.
4. DCR for the primary and the secondary is measured with windings
connected in parallel.
5. Leakage inductance is for the primary, measured with the windings
connected in parallel and the secondary windings shorted.
6. Turns ratio is with the primary windings and secondary windings con-
nected in parallel.
7. Output is with the secondary windings connected in parallel. Output of the
drive winding is 5 V, 10 mA. Output of the bias winding is 12 V, 20 mA.
8. Electrical specifications at 25°C.
Refer to Doc 362 âSoldering Surface Mount Componentsâ before soldering.
1
0.028
0,70
0.118
3,00
0.450 max
11,43
Dot indicates pin 1
12
0.118
3,00
0.810 max
20,57
0.050
1,27
0.827
21,0
0.130
3,3
1
12
Recommended
Land Pattern
0.930
23,62
0.969
24,6
13.01,8010max
0.004 / 0,10
Dimensions
are in
inches
mm
3
12
4
11
Pri
Sec
9
10
8
Bias
Drive
7
Primary windings and secondary
windings to be connected in parallel
on PC board
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
Document 1023â Revised 10/08/13
© 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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