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PDF LPD4012 Data sheet ( Hoja de datos )
| Número de pieza | LPD4012 | |
| Descripción | Coupled Inductors | |
| Fabricantes | Coilcraft | |
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Document 580-1
Coupled Inductors–LPD4012 Serieswww.DataSheet4U.com
For SEPIC
Applications
The LPD4012 coupled miniature shielded inductors are
only 1,1 mm high and 4 mm square. Their excellent
coupling coefficient (k ≥ 0.94) makes them ideal for use
in SEPIC applications. In SEPIC topologies, the re-
quired inductance for each winding in a coupled induc-
tor is half the value needed for two separate inductors,
allowing selection of a part with lower DCR and higher
current handling.
These inductors provide high efficiency and excellent
current handling in a rugged, low cost part.
They can be used as a coupled inductor, two single
inductors connected in parallel, as a 1 : 1 transformer or
as an autotransformer when connected in series.
0.155 ±0.003
3,94 ±0,076
14
0.155 ±0.003
3,94 ±0,076
2 XXX X 3
Dot indicates pin 1
D1
++
L1 C1
VIN Q1
+
L2 C2
Load VOUT
––
Dash Internal
number code
Typical SEPIC schematic
Refer to Application Note, Document 639,
“Selecting Coupled Inductors for SEPIC Applications”
0.060
1,52
1
L1
2
0.0433 ±0.004
1,10 ±0,10
Recommended
Land Pattern
1
0.103 0.049
2,606 1,24
0.031
0,78
4 45°
typ
0.174
4,40
23
0.049
1,24
0.103
2,606
0.174
4 4,40
L2
3
Dimensions are in
inches
mm
Core material Ferrite
Core and winding loss See www.coilcraft.com/coupledloss
Weight 54 – 64 mg
Terminations RoHS compliant silver-palladium-platinum-glass frit.
Other terminations available at additional cost.
Ambient temperature –40°C to +85°C with Irms current, +85°C to
+125°C with derated current
Storage temperature Component: –40°C to +125°C.
Packaging: –40°C to +80°C
Winding to winding isolation 100 V
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 1000/7″reel; 3500/13″ reel Plastic tape: 12 mm wide,
0.25 mm thick, 8 mm pocket spacing, 1.32 mm pocket depth
Recommended pick and place nozzle OD: 4 mm; ID: ≤ 2 mm
PCB washing Only pure water or alcohol recommended
Specifications subject to change without notice.
Please check our website for latest information.
Document 580-1 Revised 02/19/09
© Coilcraft, Inc. 2009
1 page | ||
| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet LPD4012.PDF ] | |
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