MKW5000_17 Datasheet, PDF (5/5 Pages) Total Power International – Wide 2:1 Input Range

Total Power International, Inc.
MKW5000 SERIES
DC/DC CONVERTER 30W
Input Source Impedance
The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the stability of the power module.
In applications where power is supplied over long lines and output loading is high, it may be necessary to use a capacitor at the input to ensure startup.
Capacitor mounted close to the power module helps ensure stability of the unit, it is recommended to use a good quality low Equivalent Series Resistance (ESR <
1.0Ω at 100 KHz) capacitor of a 33μF for the 12V input devices and a 10μF for the 24V and 48V devices.
.
+
DC Power
Source
-
+Vin
+
DC / DC
Converter
Cin
-Vin
+Out
-Out
Load
Output Ripple Reduction
A good quality low ESR capacitor placed as close as practicable across the load will give the best ripple and noise performance. To reduce output ripple, it is
recommended to use 4.7μF capacitors at the output.
+
DC Power
Source
-
+Vin
+Out
Single Output
DC / DC
Converter
-Vin
-Out
Cout
Load
+
DC Power
Source
-
+Vin
+Out
Dual Output
DC / DC Com.
Converter
-Vin
-Out
Load
Cout
Load
Cout
Maximum Capacitive Load
The MKW5000 series has limitation of maximum connected capacitance at the output. The power module may be operated in current limiting mode during start-up,
affecting the ramp-up and the startup time. For optimum performance we recommend 680μF maximum capacitive load for 12V & 15V outputs and 6800μF
capacitive load for the other outputs. The maximum capacitance can be found in the data sheet.
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℃.
The derating curves are determined from measurements obtained in a test setup.
Position of air velocity
probe and thermocouple
50mm / 2in
Air Flow
15mm / 0.6in
DUT
Total Power International, Inc
Toll Free: 877-646-0900
www.total-power.com