8 Tyco Electronics Corp.
SE014S110 Power Module; dc-dc Converter: Data Sheet
48 Vdc Input, 110 Vdc Output, 14 W January 2000
Thermal Considerations
Many conditions affect the thermal performance of the
power module, such as orientation, airflow over the
module, and board spacing. To avoid exceeding the
maximum temperature rating of the components inside
the power module, the case temperature must be kept
below 105 °C. Measure the case temperature at the
location shown in Figure 9.
A sample application is shown in Figure 10 with 36 mm
(1.4 in.) center-to-center board spacing and a vertical
module orientation. Figure 11 shows the temperature
derating curves under these conditions.
Note:
At output voltages less than 110 V, the maximum
output current is 130 mA. At output voltages
greater than 110 V, the maximum output power is
14 W.
8-657(C)
Note: Top view, pin locations are for reference only. Measurements
shown in millimeters and (inches).
Figure 9. Thermocouple Position for Measuring
Case Temperature
8-656(C)
* Center the velocity probe and thermocouple in the channel formed
between the top of the module and the adjacent PWB.
Note: Measurements shown in millimeters and (inches).
Figure 10. Power Module Orientation in Test
Chamber
8-655(C)
Figure 11. Thermal Derating Curves
TUV Rheinland
THERMOCOUPLE
POSITION
(CASE TEMPERATURE)
10 (0.4)
25
(1.0)
SE014S110
DC–DC Power Module
IN:DC 48V, 0.36A OUT:DC 110V, 0.13A
Lucent
+
ADJ
–
MADE IN USA
ON/OFF + IN –
OUT
POSITION OF AIR
VELOCITY PROBE*
AIR-
FLOW
THERMOCOUPLE FOR
AMBIENT TEMPERATURE
MEASUREMENT*
36 (1.4)
CENTER-TO-
CENTER
50.8
(2.00)
12
9
6
3
–40 –20 0 20 40 60 80
AMBIENT TEMPERATURE, T
A
(°C)
OUTPUT POWER, P
O
(W)
15
NATURAL
CONVECTION
0.25 ms
–1
(50 ft./min.)
0.75 ms
–1
(150 ft./min.)
100
0
