Data Sheet
NaosTM NXA025 SIP Non-isolated Power Modules:
October 5, 2009
10 – 14Vdc Input; 0.8Vdc to 5.5Vdc Output; 25A output current
Characteristic Curves (continued)
The following figures provide typical thermal derating curves for NXA025A0X (Figures 19 and 20 show derating
curves with base plate).
30
25
20
15
10
5
30
25
20
15
10
5
100LFM
200LFM
100LFM
200LFM
300LFM
300LFM
400LFM
400LFM
0
0
20
30
40
50
60
70
80
20
30
40
50
60
70
80
AMBIENT TEMPERATURE, TA OC
AMBIENT TEMPERATURE, TA OC
Figure 15. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 12Vdc,
Vo=1.2Vdc).
Figure 18. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 12Vdc,
Vo=5.0 Vdc).
30
30
25
20
15
25
100LFM
20
200LFM
15
300LFM
10
10
400LFM
100 LFM
200 LFM
30
5
5
0
0
20
30
40
50
60
70
80
20
40
50
60
70
80
AMBIENT TEMPERATURE, TA OC
AMBIENT TEMPERATURE, TA OC
Figure 16. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 12Vdc,
Vo=1.8 Vdc).
Figure 19. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 12Vdc,
Vo=3.3 Vdc) with baseplate.
30
30
25
20
25
100LFM
20
200LFM
15
100 LFM
15
300LFM
200 LFM
10
10
400LFM
300 LFM
5
5
400 LFM
30 40
0
0
20
30
40
50
60
70
80
20
50
60
70
80
AMBIENT TEMPERATURE, TA OC
AMBIENT TEMPERATURE, TA OC
Figure 17. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 12Vdc,
Vo=3.3 Vdc).
Figure 20. Derating Output Current versus Local
Ambient Temperature and Airflow (Vin = 12Vdc,
Vo=5.0 Vdc) with baseplate.
LINEAGE POWER
8