COILCRAFT PFD3215

Document 982F-1
Coupled Chip Inductors – PFD3215
For Flyback,
SEPIC and other
applications
The PFD3215 has a footprint less than 3.2 × 2.3 mm,
making this shielded coupled inductor ideal for applications
with limited board space. It is designed for use in a variety
of circuits including flyback, multi-output buck and SEPIC.
These inductors provide high efficiency and excellent current handling in a rugged, low cost part.
They can also be used as two single inductors connected
in series or parallel, as a wideband transformers or as a
common mode choke.
+
+
L1
VIN
L2
D
C
C
VOUT
–
SW
–
Typical Flyback Converter
L2
D
+
C
VOUT
–
0.131
max
3,32
1
L1
0.059 max
1,5
0.078
1,98
4
inches
mm
SW
D
0.088
2,24
0.024
0,610
VIN
0.030
0,762
3
4
–
C
Typical Buck Converter with auxiliary output
D
L1
0.092
max
2,33
0.025
0,635
Dimensions are in
–
3
2
+
L1
+
2
3
+
VIN
L2
0.006
0,15
0.014 ±0.003
0,356 ±0,0762
1
4
AUX
VOUT
–
+
C1
Q
L2
C
Typical SEPIC schematic
VOUT
–
Refer to Application Note, Document 639,
“Selecting Coupled Inductors for SEPIC Applications”
1
2
Recommended
Land Pattern
0.028
0,711
Core material Ferrite
Core and winding loss Go to online calculator
Environmental RoHS compliant, halogen free
Weight 18 – 28 mg
Terminations RoHS compliant silver-palladium-platinum-glass frit.
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.
Tape and reel packaging: –40°C to +80°C
Winding to winding isolation 250 Vrms, one minute
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 2000/7″ reel; 7500/13″ reel Plastic tape: 8 mm wide,
0.20 mm thick, 4 mm pocket spacing, 1.21 mm pocket depth
PCB washing Tested with pure water or alcohol only. For other
solvents, see Doc787_PCB_Washing.pdf.
[email protected]
subject to change without notice.
US +1-847-639-6400
Please check our
website for latest information.
UK +44-1236-730595
[email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
Document 982F-1 Revised 12/05/12
©
© Coilcraft
Coilcraft Inc.
Inc. 2013
2013
This
This product
product may
may not
not be
be used
used in
in medical
medical or
or high
high
risk
applications
without
prior
Coilcraft
approval.
risk applications without prior Coilcraft approval.
Specification
Specification subject
subject to
to change
change without
without notice.
notice.
Please
Please check
check web
web site
site for
for latest
latest information.
information.
Document 982F-2
PFD3215 Coupled Inductors for SEPIC applications
Part number1
Inductance2
±20% (µH)
PFD3215-391ME_
PFD3215-102ME_
PFD3215-182ME_
PFD3215-222ME_
PFD3215-332ME_
0.39
1.0
1.8
2.2
3.3
PFD3215-472ME_ 4.7
PFD3215-682ME_ 6.8
PFD3215-103ME_ 10
Isat (A)6 Irms (A)
DCR SRFCoupling Leakage
typ4
5
coefficient inductance
10% 20%30% both one
(Ohms) (MHz)
typ
typ (µH)
drop
drop drop windings7 winding8
max3
0.070
0.123
0.250
0.265
0.360
600
400
230
270
190
0.89
0.95
0.97
0.97
0.98
0.08
0.09
0.11
0.13
0.14
2.10 2.302.40
1.35 1.551.65
1.00 1.201.30
0.95 1.051.15
0.75 0.830.90
0.98
0.85
0.60
0.57
0.55
1.39
1.20
0.85
0.81
0.78
0.450 175
0.630 155
1.25 110
0.98
0.98
0.98
0.17
0.25
0.31
0.65 0.750.80
0.55 0.650.70
0.45 0.500.55
0.51
0.40
0.27
0.72
0.57
0.38
1. When ordering, please specify packaging code:
Coupled Inductor Core and Winding Loss Calculator
PFD3215-103MEC
Packaging: C= 7″ machine-ready reel. EIA-481 embossed plastic tape
(2000 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 C
instead.
D= 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (7500 parts per full reel).
2. Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an
Agilent/HP 4284A LCR meter or equivalent. When leads are connected in parallel,
inductance is the same value. When leads are connected in series, inductance is
four times the value.
3. DCR is for each winding. When leads are connected in parallel, DCR is half the
value. When leads are connected in series, DCR is twice the value.
4. SRF measured using an Agilent/HP 4191A or equivalent. When leads are
connected in parallel, SRF is the same value.
5. Leakage inductance is for the primary winding with the secondary windings
shorted.
6. DC current, at which the inductance drops the specified amount from its value
without current. It is the current flowing in one winding.
7. Equal current when applied to each winding simultaneously that causes a 40°C
temperature rise from 25°C ambient. See temperature rise calculation.
8. Maximum current when applied to one winding that causes a 40°C temperature
rise from 25°C ambient. See temperature rise calculation.
9. Electrical specifications at 25°C.
Refer to Doc 639 “Selecting Coupled Inductors for SEPIC Applications.”
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
This web-based utility allows you to enter frequency,
peak-to-peak (ripple) current, and Irms current to predict
temperature rise and overall losses, including core loss.
Go to online calculator.
PFD3215 Coupled Inductors for Flyback applications
Part number1
Inductance
at
0 A2
±20% (µH)
InductanceDCRLeakage
at Ipk A3max inductance4Turns Ipk3
±20% (µH)
(Ohms)
typ (µH)
ratio
(A)
PFD3215-391ME_0.39
PFD3215-102ME_1.0
PFD3215-182ME_1.8
PFD3215-222ME_2.2
PFD3215-332ME_3.3
0.27
0.70
1.26
1.54
2.31
1 : 1
1 : 1
1 : 1
1 : 1
1 : 1
2.40
1.65
1.30
1.15
0.90
PFD3215-472ME_4.7
PFD3215-682ME_6.8
PFD3215-103ME_
10
3.29 0.442 0.17 1 : 1
4.76 0.600 0.25 1 : 1
7.001.220.31
1 : 1
0.80
0.70
0.55
0.070
0.123
0.250
0.265
0.335
1. When ordering, please specify packaging code:
PFD3215-103MEC
Packaging: C= 7″ machine-ready reel. EIA-481 embossed plastic
tape (2000 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.
D= 13″ machine-ready reel. EIA-481 embossed plastic
tape. Factory order only, not stocked (7500 parts per
full reel).
0.08
0.09
0.11
0.13
0.14
2. Inductance is for the primary, measured at 100 kHz, 0.1 Vrms, 0 Adc on
an Agilent/HP 4284A LCR meter or equivalent.
3. Peak primary current drawn at minimum input voltage.
4. Leakage inductance is for the primary winding with the secondary
windings shorted.
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
[email protected]
subject to change without notice.
US +1-847-639-6400
Please check our
website for latest information.
UK +44-1236-730595
[email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
Document 982F-2 Revised 12/05/12
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
Document 982F-3
PFD3215 Coupled Inductors for Flyback, SEPIC and other applications
L vs Current
L vs Frequency
Typical Current Derating
120
110
90
80
70
60
50
40
25°C
Percent of rated Irms
100
30
20
10
0
-40
-20
0
20
40
60
80
100
120 140
Ambient temperature (°C)
[email protected]
subject to change without notice.
US +1-847-639-6400
Please check our
website for latest information.
UK +44-1236-730595
[email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
Document 982F-3 Revised 12/05/12
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.