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Note A:

Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the Converter.

Note B:

SOA curves represent the conditions at which internal components are at or below the manufacturer’s maximum operating temperatures

Efficiency vs Output Current

Ripple vs Output Current

Power Dissipation vs Output Current

Typical Characteristics

PT4481—48V

100-W 30-A Programmable

Isolated DC/DC Converter

Stand Alone, No Heatsink

20

30

40

50

60

70

80

90

0

5

10

15

20

25

30

Iout (A)

500LFM

400LFM

300LFM

200LFM

100LFM

Nat conv

Airflow

50

60

70

80

90

100

0

5

10

15

20

25

30

Iout (A)

48.0V

75.0V

36.0V

0

20

40

60

80

100

0

5

10

15

20

25

30

Iout (A)

75.0V

48.0V

36.0V

0

4

8

12

16

20

0

5

10

15

20

25

30

Iout (A)

36.0V

75.0V

48.0V