Coilcraft DA2025-AL Smt planar transformer Datasheet

Document 488
SMT Planar Transformer
For NSC LM5035
PWM Controller
The DA2025-AL surface mount planar transformer is
approved by National Semiconductor for use with its
LM5035 PWM Controller with Integrated 105 V Half-Bridge
and SyncFET Drivers. It is listed in AN-1435 LM5035
Evaluation Board Application Note.
This transformer is designed for 100 Watt applications
and can handle current up to 30 A. It features excellent
DCR, very low leakage inductance and 1500 Vdc primary
to secondary isolation.
Coilcraft can also design custom planar transformers
with different turns ratios and with an auxiliary winding to
meet your specific requirements.
For free evaluation samples, contact Coilcraft or visit
www.coilcraft.com.
Part
number1
DA2025-AL_
Output
power (W)
100
Output
current
(A rms)
30.0
Output
voltage (V)
3.3
Primary
inductance2
min (µH)
120.0
1. When ordering, please specify packaging code:
0.920
max
23,37
1
4
5
10
9
8
1
0.190
4,83
7
6
2
8
0.095
2,41
6
Pri
0.360 max
9,14
0.006 /0,15
0.250
6,35
5
Weight:
Terminations:
Tape and reel:
6
8T
10
2T
4
8
1
Aux 5T
4
Recommended
Land Pattern
5
Sec
2T
10
0.110
Ø
2,79
12.5 g
Matte tin over nickel over brass
200/13″ reel 44 mm tape width
Specifications subject to change without notice.
Please check our website for latest information.
© Coilcraft, Inc. 2007
Pri/sec
isolation
(Vdc)
1500
2
0.800
20,32
0.080
Ø
2,03
2
DCR max
(mOhms)
50 (pri)
2 (sec)
250 (aux)
2. Inductance measured on an Agilent/HP 4284 between pins 2
and 4 at 200 kHz, 0.1 Vrms, 0 Adc.
3. Leakage inductance measured between pins 2 and 4 at 200 kHz,
0.1 Vrms, 0 Adc with secondary pins shorted.
4. Ambient operating temperature range: –40°C to +85°C.
5. Electrical specifications at 25°C.
DA2025-ALD
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic
tape (200 parts 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.
0.810 max
3
20,57
Leakage
inductance3
max (µH)
0.25
Document 488
Revised 02/07/06
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