GE Industrial Solutions QPW050-060 Series User Manual
Page 17
Data Sheet
February 2, 2011
QPW050/060 Series Power Modules; DC-DC converters
36-75Vdc Input; 1.2Vdc to 3.3Vdc Output
LINEAGE
POWER
17
The following figures provide thermal derating characteristics.
O
U
TPUT
CU
R
R
E
N
T
, I
O
(A
)
0
10
20
30
40
50
60
25 30 35 40 45 50 55 60 65 70 75 80 85
NATURAL
CONVECTION
1.0 m/s (200 ft./min.)
2.0 m/s (400 ft./min.)
O
U
T
P
UT
C
U
RR
E
N
T
, I
O
(A
)
0
10
20
30
40
50
60
25 30 35 40 45 50 55 60 65 70 75 80 85
NATURAL CONVECTION
1.0 m/s (200 ft./min.)
2.0 m/s (400 ft./min.)
LOCAL AMBIENT TEMPERATURE, T
A
(
C) LOCAL
AMBIENT
TEMPERATURE,
T
A
(
C)
Figure 47. Output Power Derating for QPW060A0M (Vo
= 1.5V) in Longitudinal Orientation with no baseplate;
Airflow Direction From Vin(–) to Vout(--); Vin = 48V.
Figure 50. Output Power Derating for QPW060A0P (Vo
= 1.2V) in Transverse Orientation with no baseplate;
Airflow Direction From Vin(–) to Vin(+); Vin = 48V.
O
U
TP
UT CU
RR
E
N
T
, I
O
(A
)
0
10
20
30
40
50
60
25 30 35 40 45 50 55 60 65 70 75 80 85
NATURAL CONVECTION
1.0 m/s (200 ft./min.)
2.0 m/s (400 ft./min.)
Please refer to the Application Note “Thermal
Characterization Process For Open-Frame Board-Mounted
Power Modules” for a detailed discussion of thermal
aspects including maximum device temperatures.
LOCAL AMBIENT TEMPERATURE, T
A
(
C)
Figure 48. Output Power Derating for QPW060A0M (Vo
= 1.5V) in Transverse Orientation with no baseplate;
Airflow Direction From Vin(–) to Vin(+); Vin = 48V.
O
U
TPU
T
CUR
RE
NT
, I
O
(A
)
0
10
20
30
40
50
60
25 30 35 40 45 50 55 60 65 70 75 80 85
NATURAL CONVECTION
1.0 m/s (200 ft./min.)
2.0 m/s (400 ft./min.)
LOCAL AMBIENT TEMPERATURE, T
A
(
C)
Figure 49. Output Power Derating for QPW060A0P (Vo
= 1.2V) in Longitudinal Orientation with no baseplate;
Airflow Direction From Vin(–) to Vout(--); Vin = 48V.