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16

SLTS165E - FEBRUARY 2002 - REVISED MARCH 2003

PT4827—48V

35-W Triple Output Isolated DC/DC

Converter for Logic Applications

Typical Characteristics

Note A:

All Characteristic data in the above graphs has been developed from actual products tested at 25°C. This data is considered typical data for the ISR.

Note B:

Output Load (%) represents the percent drawn from each output of the stated 100% load condition.

Note C:

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

PT4827 Performance Characteristics

(See Notes A, B)

Power Dissipation vs Output Load

Efficiency vs Output Power

Efficiency vs Output Power

50

60

70

80

90

100

0

20406080

100

Output Load (%)

36V

48V

75V

50

60

70

80

90

100

0

20406080

100

Output Load (%)

36V

48V

75V

0

20

40

60

80

100

0

2040

6080

100

Output Load (%)

3.3V

2.5V

1.8V

0

20

40

60

80

100

0

2040

6080

100

Output Load (%)

3.3V

2.5V

1.8V

0

1

2

3

4

5

6

7

8

0

20406080

100

Output Load (%)

75V

48V

36V

20

30

40

50

60

70

80

90

0%

20%

40%

60%

80%

100%

Output Load (%)

200LFM

120LFM

60LFM

Nat Conv

Airflow