Coilcraft MA5475-AL Flyback transformer Datasheet

Document 1076
Flyback Transformer
•
•
•
•
For Maxim MAX17595
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 Adc1
±10% (µH)
Inductance
DCR max (Ohms)3
at Ipk2 min (µH)
pri sec bias
180
162
0.210
0.016
Leakage
Turns ratio
Inductance4
max (µH)
pri : sec pri : bias
0.185
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.
1
12
11
Pri
Sec
2
1.10
28,0
0.108
2,75
1
7
8
6
1 : 0.20
Output5
2.0
15 V, 2 A
Dot indicates pin 1
0.535
max
13,6
0.004 / 0,10 mm
1.169
29,7
1.285
max
32,65
0.079
2,0
12
1.024
26,0
0.043
1,1
7
6
Recommended
Land Pattern
5
Bias
1 : 0.24
3.1
Ipk2
(A)
1.053 max
26,75
6
7
0.148
3,75
1
12
0.657
16,7
Dimensions are in
US +1-847-639-6400 [email protected]
UK +44-1236-730595 [email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
Document 1076
0.148
3,75
inches
mm
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.
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