C1539-AL Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Planar Transformer

Document 465
Planar Transformer ForNationalSemiconductor
LM5032 PWM Controller
The C1539-AL was developed specifically for the Na-
tional Semiconductor LM5032 dual interleaved current
mode PWM controller. This planar transformer can be
used in a dual forward converter or in both interleaved
power stages of a high-current converter in applications
up to 100 Watts.
Its low leakage inductance and excellent dc resistance
provide very high efficiency. Primary to secondary isola-
tion is 1500 Vdc.
Free evaluation samples of C1539-AL are available by
contacting Coilcraft or by visiting www.coilcraft.com.
Part
Output
number¹ power (W)
C1539-AL_
100
Output
voltage
nom (V)
12
Output
current
(A rms)
8.33
Primary
inductance²
min (µH)
320.0
Leakage
inductance³
max (µH)
0.25
DCR max
(mOhms)
pri: 63.0
sec: 15.0
Turns ratio
pri : sec
2:1
Pri/sec
Isolation
(Vdc)
1500
1. When ordering, specify a packaging code:
C1539-ALD
Packaging: D = 13″ machine 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.
Dot indicates pin 1
1
2
0.810 _max
20,57
3
4
5
10
9
8
7
6
0.920
23,37
max
0.190
4,83
Ø
0.080
2,03
0.820
20,83
2
9
4
7
Recommended
Land Pattern
2
Primary
4
7
Secondary
9
0.360
9,14
max
0.006 /0,15
Weight:
10.2 g
Terminations: Matte tin over nickel over brass
Tape and reel: 200/13″ reel 44 mm tape width
© Coilcraft, Inc. 2006
Specifications subject to change without notice.
Please check our website for latest information.
Document 465 Revised 12/06/06