NA5889_14 Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer

Document 1110
Flyback Transformer ForTITPS55340
DC-DC Regulator
• Developed for Texas Instruments TPS55340
Boost/SEPIC/Flyback DC-DC Regulator
• Designed to operate at 200 kHz with 2.9 – 32 Volts input
• 1500 Vrms, one minute isolation from primary windings to
secondary windings
Core material Ferrite
Terminations  RoHS tin-silver over tin over nickel over phos bronze.
Other terminations available at additional cost.
Weight  6.5 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
Inductance
Part
  _number1
Power _  at 0 A²
(W) ±10% (µH)
NA5889-AL_ 12
12
Inductance
  ^{at Ipk3}
min (µH)
10.8
 
Leakage
DCR max (Ohms)⁴ _{  inductance}5 _{Turns ratio}6   _Ipk3
pri     sec
max (µH)
pri : sec (A)
0.03
0.0195
0.140
1 : 0.833  5.5
  _Output7
12 V, 1 A
1. When ordering, please specify packaging code:
NA5889-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 200 kHz, 1.0 Vrms, 0 Adc.
3. Peak primary current drawn at minimum input voltage.
4. DCR for the primary and for the secondary is with windings connected in parallel.
5. Leakage inductance is for the primary and is measured with the secondary shorted.
6. Turns ratio is with the primary and the secondary windings connected in parallel.
7. Output of the secondary is with the windings connected in parallel.
8. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
0.500
12,70
max
0.039
1,00
Dot above pin1
0.699 _max
17,75
0.004 /0,10
1
10
2
9
Pri
Sec
5
6
4
7
Primary windings and secondary
windings to be connected in
parallel on PC board
0.080
2,03
0.590
14,99
0.050
1,27
Recommended
Land Pattern
1
0.098
2,50
1
0.530
13,46
max
5
0.512
13,00
Dimensions are in
inches
mm
0.028
10 ^0,70
6
0.098
2,50
[e-mail] evaluation only. _{Document 1110  Revised 03/10/14}
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© Coilcraft Inc. 2014
Taiwan [phone] [e-mail]
China [phone] [e-mail]
Singapore + 65-6484 8412 [e-mail]
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.