Product # PQ60018EKx25

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-0005113 Rev. B

06/12/09

Page 7

Input:

Output:

Current:

Part No.:

35-75V

1.8V

25A

PQ60018EKx25

Technical Specification

0

2

4

6

8

10

12

14

0

5

10

15

20

25

Load Current (A)

35 Vin

48 Vin

75 Vin

60

65

70

75

80

85

90

95

100

0

5

10

15

20

25

Load Current (A)

35 Vin

48 Vin

75 Vin

2

3

4

5

6

7

8

100

200

300

400

Air Flow (LFM)

25º C

40º C

55º C

0

5

10

15

20

25

30

25

40

55

70

85

Ambient Air Temperature (ºC)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

82

83

84

85

86

87

100

200

300

400

Air Flow (LFM)

25º C

40º C

55º C

PQ60018EKx 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 curve vs. ambient air temperature

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

pin 1 (nominal input voltage/open frame).

Figure 6: Thermal plot of converter at 24A load current (43.2W) with 55°C air

flowing at the rate of 200LFM. Air is flowing across the converter from pin 3

to pin 1 (nominal input voltage/open frame).