Input:

Output:

Current:

Package:

35-75 V

12 V

Half-brick

Technical Specification

Product # PQ60120HZx50

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2HZ612J Rev. D

06/12/09

Page 6

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100

0

10

20

30

40

50

Load Current (A)

35Vin

48Vin

75Vin

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

nominal, and maximum input voltage at 25

0

5

10

15

20

25

30

35

40

45

50

0

10

20

30

40

50

Load Current (A)

35Vin

48Vin

75Vin

0

5

10

15

20

25

30

35

40

45

50

25

40

55

70

85

Ambient Air Temperature (

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

Figure 2: Power dissipation at nominal output voltage vs. load current for

minimum, nominal, and maximum input voltage at 25

0

5

10

15

20

25

30

35

40

45

50

25

40

55

70

85

Ambient Air Temperature (

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

Figure 3: Maximum output power derating curves vs. ambient air temperature

for airflow rates of 100 LFM through 400 LFM with air flowing across the

converter from pin 4 to pin 1 (nominal input voltage).

Figure 4: Thermal plot of converter at 36 A load current (432 W) with 55

air flowing at the rate of 200 LFM. Air is flowing across the converter sideways

from pin 4 to pin 1 (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 lengthwise from

input to output (nominal input voltage).

Figure 6: Thermal plot of converter at 36 A load current (432 W) with 55

flowing at the rate of 200 LFM. Air is flowing across the converter from input to

output (nominal input voltage).

PQ60-HZ Figures