Vishay ILS3825 Surface mount inductors, low profile for dc/dc converter Datasheet

ILS-3825
Vishay Dale
Surface Mount Inductors,
Low Profile for DC/DC Converters
FEATURES
•
•
•
•
•
•
•
Low profile 0.047" [1.19mm] maximum thickness.
Self shielding.
Surface mountable.
High Q for high efficiency.
Excellent energy storage.
Monolithic, ferrite construction.
Terminals designed for maximum trace EMI and
compact circuit design.
• Patents obtained.
APPLICATIONS
SCHEMATIC
Low profile DC/DC converters.
Type I PCMCIA.
Hand held electronics.
Flat panel displays.
E
No
Connection
(NC)
ELECTRICAL SPECIFICATIONS
T
Inductance Range: 4.7µH to 10µH.
Inductance Tolerance: ± 20%.
Temperature Range: - 40°C to + 85°C.
STANDARD ELECTRICAL SPECIFICATIONS
L
MODEL
ILS-3825- 01
ILS-3825- 03
Q @ 500 kHz
(Min.)
20
18
SELF
RESONANT FREQ.
MIN.
(MHz)
9
13
E
IND. (µH)
± 20% @
10kHz
w/600mA DC
10.0
4.7
DIMENSIONS in inches [millimeters]
0.270 [6.9]
0.051 [1.3]
S
0.095 ± .012
[2.41 ± 0.30]
0.051
[1.3]
0.020 ± .012
[0.51 ± 0.30]
Typ.
0.110 [2.8]
0.425
[10.8]
0.051
[1.3]
O
B
0.375 ± .012
[9.53 ± 0.30]
RATED DC CURRENT
(mA)
1,000
1,200
PAD LAYOUT
O
DIMENSIONAL OUTLINE
DCR
MAX.
(Ohms)
0.65
0.45
NC
0.250 ± .012
[6.35 ± 0.30]
0.126 [3.2]
0.047 [1.19]
Max.
Alternate NC Pad
DESCRIPTION
10µH
INDUCTANCE VALUE
- 01 (10µH)
- 03 (4.7µH)
ILS-3825
MODEL
± 20%
INDUCTANCE
TOLERANCE
SAP PART NUMBERING GUIDELINES (INTERNAL)
I
L
S
PRODUCT FAMILY
3
8
2
SIZE
5
R
J
PACKAGE
CODE
1
0
0
INDUCTANCE
VALUE
M
TOL.
0
2
SERIES
See the end of this data book for conversion tables
www.vishay.com
66
For technical questions, contact [email protected]
Document Number 34026
Revision 08-Jan-04
ILS-3825
Surface Mount Inductors, Low Profile for DC/DC Converters
Vishay Dale
PERFORMANCE GRAPHS
Typical Current vs Temperature Rise
Inductance vs DC Bias
160
13
10µH @ 85°C Ambient
12
140
10µH
11
TEMPERATURE RISE (°C)
INDUCTANCE (µH)
10
9
8
7
6
5
4.7µH
4
120
100
10µH @ 20°C Ambient
80
60
4.7µH @ 85°C Ambient
40
3
4.7µH @ 20°C Ambient
2
20
1
0.6
1
0
10
0.5
4.7µH, L & Q vs Frequency
1.5
10µH, L & Q vs Frequency
L @ 20°C
13.5
70
L @ 20°C
E
100
5.5
80
T
14.0
120
6.0
L @ - 40°C
1
DC CURRENT (Amps)
DC CURRENT (Amps)
60
60
4.5
40
4.0
O
Q @ - 40°C
3.5
Q @ 85°C
Q @ 20°C
3.0
100
200
300
400
500
600
700
800
S
0
INDUCTANCE (µH)
L @ 85°C
Q
80
5.0
900
L @ - 40°C
50
12.5
12.0
L
INDUCTANCE (µH)
13.0
40
L @ 85°C
Q
0.1
E
0
0
0.01
30
11.5
Q @ - 40°C
Q @ 85°C
20
11.0
Q @ 20°C
20
10
10.5
10.0
0
0
1000
0
100
200
FREQUENCY (kHz)
300
400
500
600
700
800
900
1000
FREQUENCY (kHz)
Energy Storage
ENERGY STORAGE (µ Joules)
O
B
6
5
4
10µH
3
4.7µH
2
1
0
0
0.5
1
1.5
DC CURRENT (Amps)
PACKAGING OPTIONS
• Tape and Reel:
Embossed plastic carrier tape.
Per EIA481-1.
2000 pieces on a 13" [330mm] reel.
Document Number 34026
Revision 08-Jan-04
For technical questions, contact [email protected]
www.vishay.com
67
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