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PT4842—48V

65-W Triple Output Isolated DC/DC

Converter for DSL Applications

Efficiency vs Output Power

PT4842 Performance Characteristics

(See Note A)

Typical Characteristics

Power Dissipation vs Output Power

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:

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

50

60

70

80

90

100

0

20406080

100

% Load (All Outputs)

36V

48V

75V

0

3

6

9

12

15

0

20406080

100

% Load (All Outputs)

75V

48V

36V

SLTS142C - DECEMBER 2000 -REVISED SEPTEMBER 2002

20

30

40

50

60

70

80

90

0

2040

6080

100

% Load (All Outputs)

300LFM

200LFM

100LFM

Nat conv

Airflow

20

30

40

50

60

70

80

90

0

2040

6080

100

% Load (All Outputs)

300LFM

200LFM

100LFM

Nat conv

Airflow

20

30

40

50

60

70

80

90

0

2040

6080

100

% Load (All Outputs)

300LFM

200LFM

100LFM

Nat conv

Airflow