A0009-AL Datasheet, PDF (1/1 Pages) Coilcraft lnc. – Flyback Transformer

Document 309
Flyback Transformer ForNationalSemiconductor
LM5000 DC/DC Regulator
This surface mount flyback transformer is designed for
use with National Semiconductor LM5000 DC/DC regu-
lator. The core completely encloses the windings to
minimize EMI interference. The transformer features
very low DCR, 500 V isolation and a leakage inductance
rating of just 1.0 µH. Coilcraft can also custom engineer
a transformer to meet your specific requirements.
For free evaluation samples, contact Coilcraft or order
them on-line at www.coilcraft.com.
Part number¹
A0009-AL_
Inductance²
±20% (µH)
Pins 1 – 4 Pins 2 – 3
100
100
Input
voltage (V)
18 – 55
Output
3.3 V @ 3 A
DCR max
(Ohms)
Leakage
Inductance³
max (µH)
0.150 (1 – 4)
1.0
0.150 (2 – 3)
0.012 (5,6 – 7,8)
Turns ratio
in : out : aux
1 : 0.33 : 1
Isolation⁴
(Vrms)
500
1. When ordering, please specify a packaging code:
A0009-ALD
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic
tape (150 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 at 100 kHz, 0.1 Vrms, 0 Adc.
3. Leakage inductance measured at 100 kHz, 0.1 Vrms from pins 1 to 4
with all other pins shorted.
4. Isolation measured from pin 1 to pins 5 and 6; from 2 to 5 and 6; and
from pins 1, 2, 5 and 6 to the core.
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Core material Ferrite
Terminations RoHS tin-silver over tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight 7.86 g
Ambient temperature –40°C to +85°C
Storage temperature Component: –40°C to +85°C.
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 150 per 13″ reel Plastic tape: 44 mm wide,
0.5 mm thick, 28 mm pocket spacing, 13.8 mm pocket depth
PCB washing Only pure water or alcohol recommended
0.53
13,5
max
0.87
22,0
max
4
1
Pin 1 indicator
Bottom view
5
0.15
3,76
0.75
19,0
max
0.20
5,00
8
0.08 × 0.11
2,00 × 2,79
0.76
19,3
Recommended
Land Pattern
4
Input
1
2
Auxiliary
3
5
6
Output
3.3 V @ 3 A
7
8
© Coilcraft, Inc. 2009
Specifications subject to change without notice.
Please check our website for latest information.
Document 309 Revised 10/28/08