Document 1298
For Maxim MAX17597
Flyback Configuration
Flyback Transformer
• Mounted on Maxim MAX17597 Evaluation Kit
• 18 V – 36 V primary input
• 24 V, 0.833 A output
• 1500Vrms, one minute isolation between primary and secondary
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 13.4 g
Ambient temperature –40°C to +125°C
Maximum part temperature 135°C (ambient + temp rise)
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 100 parts per tray
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Inductance
at 0 Adc1
±±0ꢀ (ꢁµ)
Inductance
at Ipk2
min (mµ)
Leakage
Inductance3
max (ꢁµ)
Ipk2
(A)
DCR max (Ohms)
Turns ratio
pri : sec
Part
number
pri
sec
Output
CU8758-AL
33
26
0.03
0.041
0.8
1 : 1.85
3.3
24 V, 0.833 A
0.827
21,0
1. Inductance is for the primary, measured at 200 kHz, 0.1 Vrms.
2. Peak primary current drawn at minimum input voltage.
3. Leakage inductance is for the primary winding with the secondary
winding shorted.
max
Dot indicates
pin 1
CU8758-AL
XXXX Y
0.512
13,0
4. Electrical specifications at 25°C.
max
5
6
3
4
0.024
0,6
∅
0.689
17,5
Internal
code
0.138
3,5
Pri
Sec
1
2
7
8
0.134
3,4
0.689
17,5
4
5
The following pins
8
1
4
0.197
5,0
0.197
5,0
to be connected
on the PC board:
Pins 1 – 2
Pins 3 – 4
Pins 5 – 6
Pins 7 – 8
5
1
8
0.039
∅
1,0
Recommended
PC Board Layout
0.846
21,5
max
inches
mm
Dimensions are in
Document 1298 Revised 06/06/16
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© 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.