GA3136_16 Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer

Document 628
Flyback Transformer For Texas Instruments
UCC1809/2809/3809
Primary Side Controller
• Flyback transformer for 50Watt dc-to-dc fixed frequency current
mode switching power supplies
• Designed to operate with 22 – 26 V input at 150 kHz
• 1500 Vrms, one minute isolation from primary to secondary
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.
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 per tray
PCB washing  Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
Inductance Inductance
Leakage
Part
Power ^  at 0 A¹
  _{at Ipk}2 ^  DCR max (Ohms)³   _inductance4 Turns ratios⁵   _Ipk2
number
(W) ±10% (µH) min (µH) pri sec bias max (µH) pri : sec pri : bias (A) ^  Output⁶
GA3136-BL 53
35.0
31.5 0.029 0.074 0.208 0.230
1 : 1.40 1 : 0.33 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
US [phone] [e-mail]
UK [phone] [e-mail]
Taiwan [phone] [e-mail]
China [phone] [e-mail]
Singapore + 65-6484 8412 [e-mail]
Document 628  Revised 12/14/11
© 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.