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C1539-AL Datasheet

Planar Transformer

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Document 465
Planar Transformer For National Semiconductor
LM5032 PWM Controller
• Developed for the NSC LM5032 dual interleaved current mode
PWM controller for applications up to 100 Watts.
• Can be used in a dual forward converter or in both interleaved
power stages of a high-current converter.
• Low leakage inductance, excellent DCR
• Interwinding isolation: 1500 Vdc.
Core material Ferrite
Terminations  RoHS Matte tin over nickel over brass
Weight  10.2 g
Ambient temperature  –40°C to +85°C
Storage temperature  Component: –40°C to +85°C.
Tape and reel 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  200 per 13reel  Plastic tape:  44 mm wide,
0.37 mm thick, 32 mm pocket spacing, 9.35 mm pocket depth
PCB washing  Only pure water or alcohol recommended
Part Output
number1 power (W)
Output Output Primary Leakage
voltage current  inductance2 inductance3 DCR max
nom (V) (A rms)
min (µH) max (µH)
(mOhms)
Pri/sec
Turns ratio Isolation
pri : sec (Vdc)
C1539-AL_ 100
12
8.33
320.0
0.25
pri: 63.0
2 : 1 1500
sec: 15.0
1. When ordering, please specify a packaging code:
C1539-ALD
Packaging: D = 13machine ready reel. EIA-481 embossed plastic
tape (200 per full reel).
B = Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge), use
code letter D instead.
2. Inductance measured on an Agilent/HP 4284 between pins 2 and 4 at 250
kHz, 0.1 Vrms, 0 Adc.
3. Leakage inductance measured between pins 2 and 4 at 100 kHz, 0.1 Vrms,
0 Adc with pins7 and 9 shorted.
4. Storage and ambient operating temperature range: –40°C to +85°C.
5. Electrical specifications at 25°C.
1
0.810
20,57
max
2
3
4
5
0.360
9,14
max
Dot indicates pin 1
0.920
23,37
max
0.820
20,83
10
9
8
7
6
0.190
4,83
Ø
0.080
2,03
2
4
Recommended
Land Pattern
Parts manufactured prior
to December 2011 may
be marked differently.
9
7
0.006 /0,15
Dimensions are
in
inches
mm
2
Primary
4
7
Secondary
9
Document 465  Revised 12/21/11


Part Number C1539-AL
Description Planar Transformer
Maker Coilcraft
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