MA5475_14 Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer

Document 1076
Flyback Transformer ForMaximMAX17595
Flyback Controller
• Mounted on Maxim MAX17595 Evaluation Kit
• Bias winding output: 12 V, 20 mA
• Universal and telecom (36 V – 72 V) input
• 3500 Vrms, one minute primary and bias to secondary isolation
Core material Ferrite
Terminations  RoHS tin-silver-copper (96.5/3.0/0.5) over tin over
nickel over phos bronze. Other terminations available at additional cost.
Weight  21.8 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 parts per tray
PCB washing  Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.

Part
  _number
MA5475-AL
Inductance
  _{at 0 Adc}1
±10% (µH)
180
Inductance
  _{at Ipk}2   DCR max (Ohms)³
min (µH) pri   sec   bias
162
0.210 0.016 0.185
Leakage
  _Inductance4
  _{Turns ratio}
max (µH)
  _{pri : sec  pri : bias}
3.1
1 : 0.24 1 : 0.20
  _Ipk2
(A) ^  Output⁵
2.0 15 V, 2 A
1. Inductance is for the primary (pins 1 – 2), measured at 100 kHz, 0.1 Vrms.
2. Peak primary current drawn at minimum input voltage.
3. DCR for the secondary is with the windings connected in parallel.
4. Leakage inductance is for the primary winding with the secondary winding shorted.
5. Output is for the secondary. Bias winding output is 12 V, 20 mA.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
0.004 / 0,10 mm
Dot indicates pin 1
1.169
29,7
1.285
32,65
max
0.535
13,6
max
1
Pri
2
5
Bias
6
12
11
Sec
0.108
2,75
1
1.10
28,0
0.079
2,0
12
1.024
26,0
0.043
1,1
7
6
7
8
Recommended
Land Pattern
1.053
26,75
max
6
7 ^0.148
1
12 _0.148
3,75
3,75
0.657
16,7
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 1076  Revised 03/10/14
© 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.