HIGH FREQUENCY PLANAR
TRANSFORMERS
PA09XXNL Series (up to 250W)
Power Rating:
up to 250W
Height:
9.1mm to 10.4mm Max
Footprint:
29.5mm x 26.7mm Max
Frequency Range:
200kHz to 700kHz
Isolation (Primary to Secondary):
1750V
DC
Electrical Specifications @ 25°C — Operating Temperature - 40°C to +125°C
Primary*
Inductance
Primary
Secondary
(µH MIN)
D
OUBLE
I
NTERLEAVE
D
ESIGNS
(H
IGHER
E
FFICIENCY
, L
OWER
DCR
AND
L
OWER
L
EAKAGE
)
PA0901NL
4T & 4T
216
Part
Number
Turns Ratio
Schematic
PA0903NL
PA0905NL
PA0907
PA0909NL
PA0908NL
PA0910NL
PA0912NL
PA0914NL
5T & 5T (w/5T aux)
6T & 6T (w/2T aux)
7T & 7T (w/3T aux)
8T & 8T
4T & 4T
5T & 5T (w/5T aux)
6T & 6T (w/2T aux)
7T & 7T (w/3T aux)
1T & 1T
A2
4T
(1T:1T:1T:1T)
A1
340
480
660
860
216
340
480
660
860
54
85
4T
(1T:1T:1T:1T)
B1
120
165
215
54
85
7T & 7T
B2
120
165
215
54
85
1T & 1T
B2
120
165
215
54
85
2T & 1T
B3
120
165
215
Leakage**
Inductance
(µH MAX)
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
DCR
(m MAX)
Maximum
Primary Primary Primary Secondary Height
(mm)
A
B
Aux.
13
15
21
50
60
13
15
21
50
60
13
15
21
50
60
13
15
21
50
60
13
15
21
50
60
13
15
21
50
60
13
15
21
50
60
13
15
21
50
60
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
235
78
100
—
—
235
78
100
—
—
470
156
200
—
—
470
156
200
—
—
470
156
200
—
—
470
156
200
—
1.8 & 0.6
9.1
1.12 & 1.12
9.1
40 & 40
9.1
4.5
9.1
0.56 & 0.56
10.2
4.5
10.2
PA0916
8T & 8T
S
INGLE
I
NTERLEAVE
D
ESIGNS
(L
OWER
C
OST
)
PA0930
PA0931NL
PA0932
PA0933
PA0946
PA0934
PA0935
PA0936
PA0937
PA0947NL
PA0938
PA0939
PA0940
PA0941
PA0948
PA0942
PA0943NL
PA0944
PA0945
PA0949
4T
5T (w/5T aux)
6T (w/2T aux)
7T (w/3T aux)
8T
4T
5T (w/5T aux)
6T (w/2T aux)
7T (w/3T aux)
8T
4T
5T (w/5T aux)
6T (w/2T aux)
7T (w/3T aux)
8T
4T
5T (w/5T aux)
6T (w/2T aux)
7T (w/3T aux)
8T
Notes:
*Inductance is measured, where applicable, with both primary windings connected in series (2 to 5, with 3 and 4 shorted).
**Leakage inductance is measured with both primary windings connected in series (where applicable) with all other windings shorted.
USA 858 674 8100
Germany 49 7032 7806 0
Singapore 65 6287 8998
Shanghai
86 21 62787060
China 86 755 33966678
Taiwan 886 3 4356768
www.pulseeng.com
92
SPM2007 (5/10)
HIGH FREQUENCY PLANAR
TRANSFORMERS
PA09XXNL Series (up to 250W)
Mechanical
Weight
.................. 19.8 grams
Tray
............................. 30/tray
Dimensions:
Inches
mm
Unless otherwise specified, all tolerances are ± .010
0,25
SUGGESTED PAD LAYOUT
1.050
26,67
.700
17,78
.600
15,24
.300
7,62
.074
5XØ 1,88 SHAFT
.100
5XØ 2,54 FOOT
11
1.000 MAX
25,40
7
H*
11
.500
12,70
7
.130
5XØ 3,30
1.160
29,46
MAX
Date Code
Country of Origin
PA090X
1.000
25,40
OPTIONAL
(For Mechanical
Connection
of Clips)
.005/0,13
10 SURFACES
.160
4,06
1
.250
6,35
.625
15,88
6 .063
1,60
NOTE:
The above is a universal footprint for
a component that has all 11 pins populated.
For a given part number it is only necessary
to provide pads for the terminations shown in
the schematic below.
.047
6XØ 1,19 SHAFT
.080
6XØ 2,03 FOOT
1
6
.110
6XØ 2,79
*H - Maximum Height
(see table above)
Schematics
D O U B L E I N T E R L E AV E S C H E M AT I C S
2
4
3
5
1
6
A1
PRI A
1T
1T
11
10
9
8
7
2
4
3
5
1
6
A2
PRI A
1T
PRI B
11
10
8
7
PRI B
1T
1T
1T
PRI AUX
PRI AUX
S I N G L E I N T E R L E AV E S C H E M AT I C S
B1
2
4
1
6
1T
PRI A
11
10
9
8
7
2
4
1
6
B2
PRI A
XT
XT
11
10
8
7
2
4
1
6
PRI A
B3
1T
1T
1T
11
10
9
8
7
1T
1T
1T
PRI AUX
PRI AUX
PRI AUX
USA 858 674 8100
Germany 49 7032 7806 0
Singapore 65 6287 8998
Shanghai
86 21 62787060
China 86 755 33966678
Taiwan 886 3 4356768
www.pulseeng.com
93
SPM2007 (5/10)
HIGH FREQUENCY PLANAR
TRANSFORMERS
PA09XXNL Series (up to 250W)
PA09XX Transformer Winding Configuration Matrix
The following is a matrix of the winding configurations that are
possible with the Pulse PA090X Planar Transformer Platform.
The package is typically capable of handling between 150-250W
of power depending on the application, ambient conditions and
available cooling. Once a configuration is selected, the formulae
and charts can be used to determine the approximate power
dissipation and temperature rise of the component in a given
application.
High Efficiency Double Interleaved Designs
SECONDARY WINDINGS
Single Winding
Turns
DCR
(m)
4T
5T
Single Winding
6T
7T
8T
10T
12T
14T
16T
Dual Winding
4T & 4T
5T & 5T
6T & 6T
7T & 7T
8T & 8T
5
7.5
12
30
20
30
48
120
140
20
30
48
120
140
1T
0.28
PA0908
PA0910
PA0912
PA0914
PA0908
PA0910
PA0912
PA0914
PA0916
PA0908
PA0910
PA0912
PA0914
PA0916
2T
1.12
PA0908
PA0910
PA0912
PA0914
PA0908
PA0910
PA0912
PA0914
PA0916
PA0908
PA0910
PA0912
PA0914
PA0916
4T
4.5
PA0901
PA0903
PA0905
PA0907
PA0901
PA0903
PA0905
PA0907
PA0909
PA0901
PA0903
PA0905
PA0907
PA0909
1:1
1.12
PA0908
PA0910
PA0912
PA0914
PA0908
PA0910
PA0912
PA0914
PA0916
PA0908
PA0910
PA0912
PA0914
PA0916
Tapped Winding
1:3
4.5
PA0901
PA0903
PA0905
PA0907
PA0901
PA0903
PA0905
PA0907
PA0909
PA0901
PA0903
PA0905
PA0907
PA0909
2:2
4.5
PA0901
PA0903
PA0905
PA0907
PA0901
PA0903
PA0905
PA0907
PA0909
PA0901
PA0903
PA0905
PA0907
PA0909
Dual Winding
1T & 1T
1.12
PA0908
PA0910
PA0912
PA0914
PA0908
PA0910
PA0912
PA0914
PA0916
PA0908
PA0910
PA0912
PA0914
PA0916
PRIMARY WINDINGS
Lower Cost Single Interleaved Designs
SECONDARY WINDINGS
Single Winding
Turns
DCR
(m)
PRIMARY
WINDINGS
Single Winding
4T
5T
6T
7T
8T
10
15
24
60
70
1T
0.56
2T
2.24
3T
3.4
4T
4.5
7T
20
1:1
2.24
Tapped Winding
1:2
3.4
1:3
4.5
2:2
4.5
7:7
80
Dual Winding
1T & 1T 1T & 2T 7T & 7T
2.24
4.5
80
PA0938 PA0938 PA0942 PA0930 PA0934 PA0938 PA0942 PA0930 PA0930 PA0934 PA0938 PA0942 PA0934
PA0939 PA0939 PA0943 PA0931 PA0935 PA0939 PA0943 PA0931 PA0931 PA0935 PA0939 PA0943 PA0935
PA0940 PA0940 PA0944 PA0932 PA0936 PA0940 PA0944 PA0932 PA0932 PA0936 PA0940 PA0944 PA0936
PA0941 PA0941 PA0945 PA0933 PA0937 PA0941 PA0945 PA0933 PA0933 PA0937 PA0941 PA0945 PA0937
PA0948 PA0948 PA0949 PA0946 PA0947 PA0948 PA0949 PA0946 PA0946 PA0947 PA0948 PA0947 PA0947
NOTES:
1. The base PN (ie:
PA0901)
uses an ungapped core. The minimum primary inductance for any configuration can be calculated as:
Primary Inductance (µH Min) = 3.4 * (Primary Turns)
2
2. The above base part numbers (PA09XX) are available from stock
3. It is possible to add a small gap to the transformer. Gapped transformers are non-standard and can be made available upon request,
but are not typically available from stock. To request a gapped version of the transformer, add a suffix “G” to the base number (ie:
PA0901NLG). The nominal inductance with a gap can be calculated as: Primary Inductance (µH Nominal) = 2.2 * (Primary Turns)
2
USA 858 674 8100
Germany 49 7032 7806 0
Singapore 65 6287 8998
Shanghai
86 21 62787060
China 86 755 33966678
Taiwan 886 3 4356768
www.pulseeng.com
94
SPM2007 (5/10)
HIGH FREQUENCY PLANAR
TRANSFORMERS
PA09XXNL Series (up to 250W)
Notes from Tables
1. The above transformers have been tested and approved by
Pulse’s IC partners and are cited in the appropriate datasheet
or evaluation board documentation at these companies. To
determine which IC and IC companies are matched with the
above transformers, please refer to the IC cross reference on
the Pulse web page.
2. To determine if the transformer is suitable for your application,
it is necessary to ensure that the temperature rise of the
component (ambient plus temperature rise) does not exceed
its operating temperature. To determine the approximate
temperature rise of the transformer, refer to the graphs below.
3. The “NL” suffix indicates an RoHS-compliant part number. Non-
NL suffixed parts are not necessarily RoHS compliant, but are
electrically and mechanically equivalent to NL versions. If a part
number does not have the “NL” suffix, but an RoHS compliant
version is required, please contact Pulse for availability.
Core Loss vs. Flux Density
CoreLoss = 2.53E-13*(DB)
2.5
*(Freq_kHz)
1.8
3.0
2.5
2.0
1.5
1.0
0.5
0.0
100kHz
200kHz
300kHz
400kHz
500kHz
600kHz
700kHz
Core Loss (W)
0
500
1000
DB
= 120E3 * Vin_min * Dutycycle_max / (Freq_kHz * Pri_Turns)
D
B (Gauss)
1500
2000
2500
Temperature Rise vs. Power (W) Dissipation
120
Temperature Rise (°C)
100
80
60
40
20
0
0
1
2
3
4
5
6
7
Total Power (W) Dissipation
Total Power Dissipation (W) = .001 * (DCRprimary * I
RMS
_primary
2
+ DCRsecondary * I
RMS
_secondary
2
) + Core Loss (W)
USA 858 674 8100
Germany 49 7032 7806 0
Singapore 65 6287 8998
Shanghai
86 21 62787060
China 86 755 33966678
Taiwan 886 3 4356768
www.pulseeng.com
95
SPM2007 (5/10)
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