Product # PQ60018SMx25

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-0005161 Rev. C

06/28/11

Page 6

Technical Specification

Input:

Output:

Current:

48V

1.8V

25A

0

5

10

15

20

25

30

25

40

55

70

85

Ambient Air Temperature(°C)

400LFM(2.0m/s)

300LFM(1.5m/s)

200LFM(1.0m/s)

100LFM(0.5 m/S)

2

3

4

5

6

7

8

100

200

300

400

Air Flow (LFM)

25º C

40º C

55º C

0

2

4

6

8

10

12

0

5

10

15

20

25

Load Current (A)

36 Vin

48 Vin

75 Vin

81

82

83

84

85

86

87

100

200

300

400

Air Flow (LFM)

25º C

40º C

55º C

60

65

70

75

80

85

90

95

100

0

5

10

15

20

25

Load Current (A)

36 Vin

48 Vin

75 Vin

PQ60018SMx25 Figures

Figure 1: Efficiency at nominal output voltage vs. load current for minimum,

nominal, and maximum input voltage at 25°C.

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

rate for ambient air temperatures of 25°C, 40°C, and 55°C (nominal input

voltage).

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

minimum, nominal, and maximum input voltage at 25°C.

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

vs. airflow rate for ambient air temperatures of 25°C, 40°C, and 55°C (nominal

input voltage).

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

for airflow rates of 100 LFM through 400 LFM with air flowing from pin 3 to pin

1 (nominal input voltage).

Figure 6: Thermal plot of converter at 25.0 amp load current (45.0W) with 55°C

air flowing at the rate of 200 LFM. Air is flowing from pin 3 to pin 1 (nominal

input voltage).