Product # PQ60018HPA80

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2HP618K Rev. E

03/06/06

Page 5

Input:

Input:

Output:

Output:

Current:

Current:

ackage:

35-75 V

35-75 V

1.8 V

1.8 V

80 A

80 A

Half-brick

Half-brick

T

pecification

65

70

75

80

85

90

95

0

8

16

24

32

40

48

56

64

72

80

Load Current (A)

35 Vin

48 Vin

75 Vin

86

87

88

89

90

91

92

93

94

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

4

8

12

16

20

24

0

8

16

24

32

40

48

56

64

72

80

Load Current (A)

35 Vin

48 Vin

75 Vin

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

6

7

8

9

10

11

12

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

30

40

50

60

70

80

025

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)

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

perature for airflow rates of 0 LFM through 400 LFM with air flowing

from input to output (nominal input voltage).

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

from input to output (nominal input voltage).

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