GA0007_13 Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer

Document 605
Flyback Transformer For ON Semiconductor
NCP1351 Controller
• Dual-output flyback transformer for ON Semiconductor’s
NCP1351 Variable Off Time PWM Controller.
• 32 V, 1.0 A and 16 V, 0.75 A Outputs. Output of the auxiliary
winding is 16 V.
• Operates in discontinuous mode with a universal input
• 3000 Vrms, one minute isolation Pri and Aux to Sec1 and Sec2.
• 500 Vrms, one minute isolation Pri to Aux and between Sec1
and Sec2
Core material Ferrite
Terminations  RoHS tin-silver over tin over phos bronze. Other
terminations available at additional cost.
Weight  23.5 g
Ambient temperature  –40°C to +85°C
Storage temperature  Component: –40°C to +85°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  64 parts per tray
PCB washing  Only pure water or alcohol recommended
Part
number
GA0007-AL
  _{L at 0 A}1   _{L at Ipk}2
±10% (µH) min (µH)
270
243
   DCR max (Ohms)
pri sec1 sec2 aux
0.25 0.027 0.045 0.26
  _{Leakage L}3
max (µH)
8.16
1. Inductance is for the primary, measured at 45 kHz, 0.8 Vrms, 0 Adc.
2. Ipk is the peak current drawn at minimum input voltage.
3. Leakage inductance measured on the primary winding with all secondary pins shorted.
4. Ambient operating temperature range –40°C to +85°C.
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
  _{Turns ratio}
pri : sec1 : sec2 : aux
5:1:1:1
  _Ipk2 
(A)
3.0
Dot indicates pin 1
0.150
3,81
(4)
0.100
2,54
(6)
1
14
1
14
0.935
23,75
max
0.500
12,70
6
7
1.170
29,72
max
0.900
22,86
max
0.800
20,42
Recommended
Board Layout
0.044
1,10
(14)
11
Pri
13
8
Aux
10
2 32 V, 1.0 A
Sec2
3
16 V, 0.75 A
4
Sec1
5 Gnd
Secondary windings to be connected
in series on the PC board.
0.025 _sq
0,635
0.800
20,42
0.150 ±0.01
3,81 ±0,25
Dimensions
are
in
inches
mm
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China [phone] [e-mail]
Singapore + 65-6484 8412 [e-mail]
Document 605  Revised 01/14/13
© 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.