Product # PQ60525HTA04

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2HT652F Rev. B

03/08/04

Page 5

Input:

Input:

Output:

Output:

Current:

Current:

P

ackage:

35-75 V

35-75 V

52.5 V

52.5 V

3.8 A

(200W)

Half-brick

Half-brick

T

pecification

65

70

75

80

85

90

95

100

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

Load Current (A)

35 Vin

48 Vin

75 Vin

86

87

88

89

90

91

92

93

94

0

100

200

300

400

500

25 C

40 C

55 C

Figure 2: Efficiency at nominal output voltage and 60% rated power vs.

(nominal input voltage).

0

2

4

6

8

10

12

14

16

18

20

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

Load Current (A)

35 Vin

48 Vin

75 Vin

Figure 3: Power dissipation at nominal output voltage vs. load current

4.0

5.0

6.0

7.0

8.0

9.0

10.0

11.0

12.0

0

100

200

300

400

500

Air Flow (LFM)

25 C

40 C

55 C

Figure 4: Power dissipation at nominal output voltage and 60% rated

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

0

2540

5570

85

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

50 LFM (0.25 m/s)

Figure 5: Maximum output power derating curves vs. ambient air tem-

perature for airflow rates of 50 LFM through 400 LFM with air flowing

from input to output (nominal input voltage).

Figure 6: Thermal plot of converter at 3.4 amp load current (179W)

converter from input to output (nominal input voltage).

Figure 1: Efficiency at nominal output voltage vs. load current for min-