NH033 datasheet(16/20 Pages) LINEAGEPOWER

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NH033x-L and NH050x-L Series Power Modules:

Data Sheet

5 Vdc Input; 1.2 Vdc to 3.3 Vdc Output; 10 A and 15 A

March 2010

Lineage Power

Thermal Considerations (continued)

Convection Requirements for Cooling

(continued)

8-2449(C)

Figure 47. NH050G-L Typical Power Dissipation vs.

Output Current, TA = 25 °C

8-2444(C)

Figure 48. NH033F-L Typical Power Dissipation vs.

Output Current, TA = 25 °C

8-2448(C)

Figure 49. NH050F-L Typical Power Dissipation vs.

Output Current, TA = 25 °C

With the known power dissipation and a given local

ambient temperature, the minimum airflow can be cho-

sen from the derating curves in Figures 50 and 51.

8-1425(C).c

Figure 50. NH033x-L Power Derating vs. Local

Ambient Temperature and Air Velocity

2.0

3.0

5.0

4.0

0.5

OUTPUT

CURRENT, IO (A)

1.0

1.5

2.5

4.5

3.5

6.0

5.5

VI = 5.5 V

VI = 5.0 V

VI = 4.5 V

0.5

3.0

OUTPUT

CURRENT, IO (A)

2.0

1.5

2.5

3.5

1.0

VI= 5.5 V

VI= 5.0 V

VI = 4.5 V

2.0

3.0

5.0

4.0

0.5

OUTPUT

CURRENT, IO (A)

1.0

1.5

2.5

4.5

3.5

6.0

5.5

VI = 5.5 V

VI = 4.5 V

VI = 5.0 V

125

AMBIENT TEMPERATURE, T A (˚C)

105 115

1.5 m/s (300 ft./min.)

1.0 m/s (200 ft./min.)

0.5 m/s

(100 ft./min.)

NATURAL

CONVECTION

2.0 m/s (400 ft./min.)

3.0 m/s (600 ft./min.)

TYPICAL 5.5 V

10 A

OUT

DISSIPATION

TYPICAL 5.0 V

10 A

OUT

DISSIPATION

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