AN3401

Test results and device comparison

Doc ID 018842 Rev 1

11/18

7

Test results and device comparison

For every device and temperature condition an analysis has been done in terms of, power

dissipation and junction temperature.

7.1

Free devices at ambient temperature

For the average power the values are calculated using Equation 2.

Figure 9.

Power vs. Iak

In the same condition the measured junction temperatures are:

Figure 10.

Junction temp. vs. Iak

Schottky

20A

Schottky

30A

SPV1001

SPV1002

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

01234

56789

10

11

12

Pak (W)

Iak (A)

Power vs Iak

Schottky

20A

Schottky

30A

SPV1001

SPV1002

0

20

40

60

80

100

120

0123456789

10

11

12

TEMP (C)

Iak

(A)

Junction Temp vs Iak