Product # DQ65033QMA06

Phone 1-888-567-9596

Doc.# 005-2DQ653E Rev. H

7/7/04

Page 5

T

pecification

Input:

Input:

Outputs:

Outputs:

Current:

Current:

ackage:

35-75V

35-75V

5.0V & 3.3V

5.0V & 3.3V

60W

60W

Quarter-brick

Quarter-brick

60

65

70

75

80

85

90

95

100

0

10

20

30

40

50

60

Total Output Power (W)

35 Vin

48 Vin

75 Vin

Figure 1: Efficiency vs. output power, from 0 load to full load with 50%

load on 3.3V output and 50% load on 5.0V output at minimum, nominal,

0

1

2

3

4

5

6

7

8

0

10

20

30

40

50

60

Total Output Power (W)

35 Vin

48 Vin

75 Vin

Figure 2: Power dissipation vs. output power, from 0 load to full load

with 50% load on 3.3V output and 50% load on 5.0V output at mini-

60

65

70

75

80

85

90

95

100

10.9/0

9.4/1

7.9/2

6.4/3

4.8/4

3.3/5

1.8/6

0/7.2

Load Current (A), 3.3Vout/5.0Vout

35 Vin

48 Vin

75 Vin

Figure 3: Efficiency vs. load current, with total output power fixed at

60% load (36W) and load currents split as shown between 3.3V and

0

1

2

3

4

5

6

7

8

10.9/0

9.4/1

7.9/2

6.4/3

4.8/4

3.3/5

1.8/6

Load Current (A), 3.3Vout/5.0Vout

35 Vin

48 Vin

75 Vin

Figure 4: Power dissipation vs. load current, with total output power

fixed at 60% load (36W) and load currents split as shown between 3.3V

Figure 5: Efficiency at 80% load and 50/50 voltage split (7.3A load on

3.3V and 4.8A load on 5.0V) versus airflow rate for ambient air temper-

Figure 6: Power dissipation at 80% load and 50/50 voltage split (7.3A

load on 3.3V and 4.8A load on 5.0V) versus airflow rate for ambient air

82

83

84

85

86

87

88

89

90

0100

200

300

400

500

Air Flow (LFM)

25 C

40 C

55 C

2.0

3.0

4.0

5.0

6.0

7.0

8.0

0100

200

300

400

500

Air Flow (LFM)

25 C

40 C

55 C