GA3136-BL Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer

Document 628
Flyback Transformer ForTexasInstrumentsUCC2809
Primary Side Controller
• Flyback transformer for 50 Watt dc-to-dc fixed frequency
current mode switching power supplies
• Designed to operate with 22 – 26 V input at 150 kHz
• 1500 Vrms isolation from primary to secondary windings
Core material Ferrite
Terminations RoHS tin-silver over tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight 27.1 g
Ambient temperature –40°C to +125°C
Storage temperature Component: –40°C to +125°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 24 per tray
PCB washing Only pure water or alcohol recommended
Part
number
GA3136-BL
Power
(W)
53
Inductance Inductance
at 0 A¹
at Ipk^{2 DCR max (Ohms)3}
±10% (µH) min (µH) pri sec bias
35.0
31.5 0.029 0.074 0.208
Leakage
inductance⁴
max (µH)
0.230
Turns ratios⁵
pri :sec pri :bias
1 : 1.40 1 : 0.33
Ipk²
(A) Output⁶
5.9 53 V, 1.0 A
1. Inductance is measured at 150 kHz, 0.1 Vrms.
2. Peak primary current drawn at minimum input voltage.
3. DCR for the primary is with the windings connected in parallel.
4. Leakage inductance is for the primary windings connected in parallel
and with the secondary winding shorted.
5. Turns ratios are with the primary windings connected in parallel.
6. Output is for the secondary winding. Output of the bias winding output is
12 V, 20 mA.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
0.004 / 0,10 mm
6
5
7
Pri
Sec
3
8
4
2
Bias
1
Primary windings to be connected
in parallel on PC board.
0.108
2,75
1
0.079
1.10
2,0
28,0
12
Recommended
Land Pattern
6
7 ^0.157
4,0
6
1.053
26,75
max
1
Dot indicates pin 1
0.551
14,0
max
1.169
29,7
1.285
32,65
max
1.024
26,0
0.043
1,1
7
0.657
16,7
12 _0.157
4,0
Dimensions are in
inches
mm
Specifications subject to change without notice.
Please check our website for latest information.
Document 628 Revised 10/28/08
© Coilcraft, Inc. 2009