Product # PQ60012EGL20

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2EG621G Rev. D

04/09/10

Page 5

Input:

Input:

Output:

Output:

Current:

Current:

ackage:

35-75 V

35-75 V

1.2 V

1.2 V

20 A

20 A

Eighth-brick

Eighth-brick

T

pecification

60

65

70

75

80

85

90

95

0

2

4

6

8

10

12

14

16

18

20

Load Current (A)

35 Vin

48 Vin

75 Vin

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

80

81

82

83

84

85

86

87

88

0

100

200

300

400

500

Air Flow (LFM)

25 C

40 C

55 C

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

(nominal input voltage).

0

1

2

3

4

5

6

7

8

0

2

4

6

8

10

12

14

16

18

20

Load Current (A)

35 Vin

48 Vin

75 Vin

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

0

1

2

3

4

5

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

2

4

6

8

10

12

14

16

18

20

22

0

25

40

55

70

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

across the converter from pin 3 to pin 1 (nominal input voltage).

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

sideways from pin 3 to pin 1 (nominal input voltage).

Semiconductor junction temperature is

within 1°C of surface temperature