ALQ40 datasheet(13/16 Pages) ASTEC

13 / 16 page

Technical Reference Notes

ALQ40/50 Series

(Open Frame Single Output Quarter Brick)

MODEL: ALQ50 SERIES

SHEET 13 OF 16

APRIL 21, 2003 - REVISION A (PRELIMINARY)

Performance Curves (continued)

ALQ50K48 (1.2V) SERIES

Efficiency vs Output Current, T

A= 25°C

50%

55%

60%

65%

70%

75%

80%

85%

90%

95%

Output Current (Amps)

Vin = 36Vdc

Vin = 48Vdc

Vin = 75Vdc

Power Dissipation vs Output Current, T

A= 25°C

Output Current (Amps)

Vin = 36 Vdc

Vin = 48 Vdc

Vin = 75 Vdc

Efficiency vs Output Current, T

A= 85°C

50%

55%

60%

65%

70%

75%

80%

85%

90%

95%

Output Current (Amps)

Vin = 36 Vdc

Vin = 48 Vdc

Vin = 75 Vdc

Dissipation vs Output Current, T

A= 85°C

Output Current (Amps)

Vin = 36 Vdc

Vin = 48 Vdc

Vin = 75 Vdc

Figure 17. Efficiency vs. Load Current Curves at TA=25°C

for different input voltages with 300 LFM airflow directed

from Pins 3 to 1.

Figure 18. Power Dissipation vs. Load Current at TA=25°C

for different input voltages with 300 LFM airflow directed

from Pins 3 to 1.

Figure 19. Efficiency vs. Load Current Curves at TA=85°C

for different input voltages with 300 LFM airflow directed

from Pins 3 to 1.

Figure 20. Power Dissipation vs. Load Current at TA=85°C

for different input voltages with 300 LFM airflow directed

from Pins 3 to 1.

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