NA6264_16 Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer

Document 1295
Flyback Transformer ForTexasInstruments
PMP7899 Reference Design
• Developed for Texas Instruments PMP7899 Reference Design
for Non-Synchronous Flyback Converter with an Isolated Output
• 8 – 18 V input; 48 V, 1 A output
• Aux winding output 9 V, 20 mA
• 1500 Vrms, one minute primary and aux to secondary
isolation (hipot)
Core material Ferrite
Terminations  RoHS tin-silver (96.5/3.5) over tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight  25.9 g
Ambient temperature  –40°C to +125°C
Maximum part temperature  +125°C (ambient + temp rise)
Storage temperature  Component: –40°C to +125°C.
Tray 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 24 parts per tray
PCB washing  Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Inductance
Part
  _{at 0 Adc}1
  _number
±15% (µH)
Inductance Leakage
  _{at Ipk}2
DCR max
  _Inductance3
  Turns ratio
min (µH)
(Ohms)
max (µH)
pri : sec   pri : aux
NA6264-AL
2.56
2.176



0.0065 (pins 1 – 3)
0.0065 (pins 2 – 4)
0.130 (pins 5 – 6)
0.110 (pins 11-8)
0.060
1:6
1 : 1.5
  _Ipk2
(A)
16.5
  _Output4
48 V, 1 A
1. Inductance is for the primary with windings connected in parallel, measured at
300 kHz, 0.3 Vrms.
2. Peak primary current drawn at minimum input voltage.
3. Leakage inductance is for the primary with the windings connected in parallel
and with the secondary winding shorted.
4. Output is for the secondary. Aux winding output is 9 V, 20 mA.
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
0.004 / 0,10 mm
Dot indicates pin 1
0.551
14,0
max
1.116
28,1
1.30
33,02
max
1
2
11
Pri
Sec
4
8
3
5
Aux
6
Primary windings to be
connected on the PC board.
0.108
2,75
1
1.10
28,0
0.079
2,0
12
Recommended
Land Pattern
6
7 ^0.148
3,75
6
1.053
26,75
max
1
1.024
26,0
0.039
1,0
7
0.657
16,7
12 _0.148
3,75
Dimensions are in
inches
mm
US [phone] [e-mail]
UK [phone] [e-mail]
Taiwan [phone] [e-mail]
China [phone] [e-mail]
Singapore + 65-6484 8412 [e-mail]
Document 1295  Revised 08/07/15
© Coilcraft Inc. 2016
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.