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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

PT4520 Series

20-W 48-V Input Isolated

DC/DC Converter

50

60

70

80

90

0

0.4

0.8

1.2

1.6

Iout (A)

36.0V

48.0V

60.0V

72.0V

0

10

20

30

40

50

0

0.4

0.8

1.2

1.6

Iout (A)

72.0V

60.0V

48.0V

36.0V

V

IN

50

60

70

80

90

012

34

Iout (A)

36.0V

48.0V

60.0V

72.0V

0

1

2

3

4

5

6

0

123

4

Iout (A)

72.0V

60.0V

48.0V

36.0V

50

60

70

80

90

012

345

Iout (A)

36.0V

48.0V

60.0V

72.0V

0

10

20

30

40

50

012

345

Iout (A)

72.0V

60.0V

48.0V

36.0V

V

IN

0

1

2

3

4

5

6

0

1234

5

Iout (A)

72.0V

60.0V

48.0V

36.0V

Efficiency vs Output Current

Efficiency vs Output Current

Ripple vs Output Current

Ripple vs Output Current

Power Dissipation vs Output Current

Power Dissipation vs Output Current

0

10

20

30

40

50

01

234

Iout (A)

72.0V

60.0V

48.0V

36.0V

0

1

2

3

4

5

6

0

0.4

0.8

1.2

1.6

Iout (A)

72.0V

60.0V

48.0V

36.0V

20

30

40

50

60

70

80

90

0

12345

Iout (A)

300LFM

200LFM

100LFM

Nat conv

Airflow

20

30

40

50

60

70

80

90

01234

Iout (A)

300LFM

200LFM

100LFM

Nat conv

Airflow

20

30

40

50

60

70

80

90

0

0.25

0.5

0.75

1

1.25

1.5

1.75

Iout (A)

300LFM

200LFM

100LFM

Nat conv

Airflow

SLTS148B - JUNE 2000 - REVISED OCTOBER 2002