Data Sheet

May 16, 2008

HW/HC004/005/006 Series DC-DC Power Module:

18-36Vdc & 36-75Vdc Input; 1.0V-5Vdc Output; 4A - 6A Output Current

7

The following figures provide typical characteristics for the HW005A0F (3.3V, 5A) at 25ºC. The figures are identical

for either positive or negative Remote On/Off logic.

70

72

74

76

78

80

82

84

86

88

90

0

123

4

5

0

1

2

3

4

5

6

0

10

20

30

40506070

80

90

100

110

3.0 m/s (600 ft./min.)

2.0 m/s (400 ft./min.)

1.0 m/s (200 ft./min.)

NATURAL CONVECTION

Figure 7. Converter Efficiency versus Output Current

Figure 10. Derating Output Current versus Local

Ambient Temperature and Airflow

TIME, t (1

μs/div)

TIME, t (20ms/div)

Figure 8. Typical Output Ripple and Noise.

Figure 11. Typical Start-Up with application of Vin.

TIME, t (50

μs/div)

TIME, t (20ms/div)

Figure 9. Transient Response to Dynamic Load

Change from 50% to 75% to 50% of full load.

Figure 12. Typical Start-Up Using Remote On/Off,

negative logic version shown.