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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

PA09XX 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

Tapped Winding

Dual Winding

Turns

1T

2T

4T

1:1

1:3

2:2

1T & 1T

DCR (m

Ω)

0.28

1.12

4.5

1.12

4.5

4.5

1.12

4T

5

PA0908

PA0908

PA0901

PA0908

PA0901

PA0901

PA0908

5T

7.5

PA0910

PA0910

PA0903

PA0910

PA0903

PA0903

PA0910

6T

12

PA0912

PA0912

PA0905

PA0912

PA0905

PA0905

PA0912

7T

30

PA0914

PA0914

PA0907

PA0914

PA0907

PA0907

PA0914

8T

20

PA0908

PA0908

PA0901

PA0908

PA0901

PA0901

PA0908

10T

30

PA0910

PA0910

PA0903

PA0910

PA0903

PA0903

PA0910

12T

48

PA0912

PA0912

PA0905

PA0912

PA0905

PA0905

PA0912

14T

120

PA0914

PA0914

PA0907

PA0914

PA0907

PA0907

PA0914

16T

140

PA0916

PA0916

PA0909

PA0916

PA0909

PA0909

PA0916

4T/4T

20

PA0908

PA0908

PA0901

PA0908

PA0901

PA0901

PA0908

4T/5T

30

PA0910

PA0910

PA0903

PA0910

PA0903

PA0903

PA0910

5T/5T

48

PA0912

PA0912

PA0905

PA0912

PA0905

PA0905

PA0912

5T/6T

120

PA0914

PA0914

PA0907

PA0914

PA0907

PA0907

PA0914

6T/6T

140

-

-

PA0909

-

PA0909

PA0909

-

Lower Cost Single Interleaved Designs

SECONDARY WINDINGS

Single Winding

Tapped Winding

Dual Winding

Turns

3T

4T

7T

1:2

1:3

2:2

7:7

1T & 2T

7T & 7T

DCR (m

Ω)

3.4

4.5

20

3.4

4.5

4.5

80

4.5

80

4T

10

-

PA0930

PA0934

-

PA0930

PA0930

PA0934

-

PA0934

5T

15

PA0943

PA0931

PA0935

PA0943

PA0931

PA0931

PA0935

PA0943

PA0935

6T

24

-

-

PA0936

-

-

-

PA0936

-

PA0936

7T

60

-

-

PA0937

-

-

-

PA0937

-

PA0937

8T

70

-

-

PA0947

-

-

-

PA0947

PA0947

PA0947

1.

The primary inductance for any configuration can be calculated as:

Primary Inductance (µH MIN) = 3.4 * (Primary_Turns)2

2.

The above base part numbers (

PA09XXNL) 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 (i.e. PA0901GNL). The nominal inductance with the a gap can be

calculated as:

Primary Inductance (

µH nominal) = 2.2 * (Primary Turns)

Notes: