GA0007-AL Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer

Document 605
Flyback Transformer ForONSemiconductor
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 a discontinuousmode with a universal input
• 3000 Vrms primary to secondary isolation.
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.
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 A¹
±10% (µH)
270
L at Ipk²
min (µH)
243
DCR max (Ohms)
pri sec1 sec2 aux
0.25 0.027 0.045 0.26
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.
Leakage L³
max (µH)
8.16
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.
0.023 _sq
0,584
0.800
20,42
© Coilcraft, Inc. 2009
0.150 ±0.01
3,81 ±0,25
Specifications subject to change without notice.
Please check our website for latest information.
Document 605 Revised 04/26/07