CU8758-AL

Document 1298
Flyback Transformer
For Maxim MAX17597
Flyback Configuration
• Mounted on Maxim MAX17597 Evaluation Kit
• 18 V ­– 36 V primary input
• 24 V, 0.833 A output
• 1500 Vrms, 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.
Part
number
CU8758-AL
InductanceInductance
at 0 Adc1
at Ipk2 DCR max (Ohms)
±10% (µH)
min (mH)
pri sec
33
26
0.03
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.
4. Electrical specifications at 25°C.
5
6
3
4
Pri
Sec
1
2
Leakage
Turns ratio
max (µH)
pri : sec
0.041
0.8
(A)
1 : 1.85 3.3
Output
24 V, 0.833 A
0.827
max
21,0
Dot indicates
pin 1
CU8758-AL
0.512
max
13,0
XXXX Y
0.024
∅
0,6
0.689
17,5
0.138
3,5
7
8
The following pins
to be connected
on the PC board:
Pins 1 – 2
Pins 3 – 4
Pins 5 – 6
Pins 7 – 8
Ipk2
Inductance3
Internal
code
0.134
3,4
4
0.689
17,5
5
0.197
5,0
0.197
5,0
1
8
0.846
max
21,5
0.039
∅
1,0
1
8
4
5
Recommended
PC Board Layout
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]
inches
mm
Document 1298 Revised 06/06/16
© 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.
Similar pages