NA5814_14 Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer

Document 1042
Flyback Transformer For Microchip AN1444
Microinverter
• Developed for the Microchip AN1444 Grid-Connected Solar
Microinverter
• Designed to operate at 57 kHz with 20 – 55 Vdc input
• Rectified sine wave output
• Maximum power: 100 W
• 3000 Vrms, one minute isolation primary to secondary
• 1500 Vrms, one minute isolation windings to core
Core material Ferrite
Terminations  RoHS tin-silver-copper over tin over copper-clad steel.
Weight  90 g
Ambient temperature  –40°C to +85°C
Storage temperature  Component: –40°C to +85°C.
Tray packaging: –40°C to +80°C
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  20 parts per tray
PCB washing  Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf
Part
number
NA5814-AL
NA5919-AL
  _{L at 0 A}1   _{L at Ipk}2
±10% (µH) min (µH)
55.0
44.0
55.0
38.5
DCR max (Ohms)³
pri    sec
0.0475
0.0480
0.360
0.110
  _{Leakage L}4
max (µH)
1.45
1.58
1. Inductance is for the primary, measured at 150 kHz, 1.0 Vrms, 0 Adc.
2. Ipk is the peak current drawn at minimum input voltage.
3. DCR for the primary is with windings connected in parallel
4. Leakage inductance measured on the primary winding with the secondary pins shorted.
5. Ambient operating temperature range –40°C to +85°C.
6. Electrical specifications at 25°C.
Dot indicates pin 1
1
12
0.047
1,20
∅ (12)
0.200 ₍₈₎
5,08
1.670 _max
42,40
6
7
1.968 _max
50,0
1.400
35,56
Recommended
Board Layout
0.300 ₍₂₎
7,62
  _{Turns ratio}
pri : sec
1:7
1:4
  _Ipk2 
(A)
13.6
13.6
Output
(Vrms)
230
110
5
6
10
Pri
Sec
2
12
1
Primary windings to be connected
in parallel on the PC board.
1.200 _max
30,48
0.031 ₍₁₂₎
0,80
0.130 _min
3,30
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 1042  Revised 04/23/14
© Coilcraft Inc. 2014
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.