Thermal ratings – GE Industrial Solutions Zephyr Non-Isolated SMT User Manual
Page 13
Zephyr Non-Isolated SMT DC-DC Power Module:
0.8V to 3.5V @ 20A Output, 5V to 12V Input
Data Sheet
March 31, 2010
Thermal Ratings
Figures 26 – 37 show thermal derating curves for 12V and 5V input voltages, at different output voltages,
and with different ambient temperatures and airflow.
Figure 26. Thermal Derating: V
IN
= 12V, V
OUT
= 0.8V Figure 27. Thermal Derating: V
IN
= 12V, V
OUT
= 1.3V
Figure 26. Thermal Derating: V
IN
= 12V, V
OUT
= 0.8V Figure 27. Thermal Derating: V
IN
= 12V, V
OUT
= 1.3V
Figure 28. Thermal Derating: V
IN
= 12V, V
OUT
= 1.8V Figure 29. Thermal Derating: V
IN
= 12V, V
OUT
= 2.0V
Figure 28. Thermal Derating: V
IN
= 12V, V
OUT
= 1.8V Figure 29. Thermal Derating: V
IN
= 12V, V
OUT
= 2.0V
Figure 30. Thermal Derating: V
IN
= 12V, V
OUT
= 2.5V Figure 31. Thermal Derating: V
IN
= 12V, V
OUT
= 3.3V
Figure 30. Thermal Derating: V
IN
= 12V, V
OUT
= 2.5V Figure 31. Thermal Derating: V
IN
= 12V, V
OUT
= 3.3V
17
18
19
20
21
25
30
40
50
60
70
Output Current [A]
Ambient Temperature [°C]
22
23
24
25
THERMAL DERATING
12 V
IN
/ 0.8 V
OUT
0 LFM
100 LFM
200 LFM
300 LFM
400 LFM
16
17
18
19
20
21
22
25
30
40
50
60
70
Output Current [A]
Ambient Temperature [°C]
23
THERMAL DERATING
12 V
IN
/ 1.3 V
OUT
0 LFM
100 LFM
200 LFM
300 LFM
400 LFM
15
16
17
18
19
20
21
22
25
30
40
50
60
70
Output Current [A]
Ambient Temperature [°C]
THERMAL DERATING
12 V
IN
/ 1.8 V
OUT
0 LFM
100 LFM
200 LFM
300 LFM
400 LFM
15
16
17
18
19
20
21
22
25
30
40
50
60
70
Output Current [A]
Ambient Temperature [°C]
THERMAL DERATING
12 V
IN
/ 2.0 V
OUT
0 LFM
100 LFM
200 LFM
300 LFM
400 LFM
14
15
16
17
18
19
20
25
30
40
50
60
70
Output Current [A]
Ambient Temperature [°C]
THERMAL DERATING
12 V
IN
/ 2.5 V
OUT
0 LFM
100 LFM
200 LFM
300 LFM
400 LFM
12.5
13.5
14.5
15.5
16.5
17.5
18.5
25
30
40
50
60
70
Output Current [A]
Ambient Temperature [°C]
THERMAL DERATING
12 V
IN
/ 3.3 V
OUT
0 LFM
100 LFM
200 LFM
300 LFM
400 LFM
LINEAGE
POWER
13