PRF20 Datasheet, PDF (4/6 Pages) CUI INC – DC-DC CONVERTER

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CUI Inc │ SERIES: PRF20 │ DESCRIPTION: DC-DC CONVERTER
date 02/12/2014 │ page 4 of 6
DERATING CURVES
Temperature Derating Curve
100
80
60
Safe operating area
40
20
-40 -20
0
20
40
60 73 80
Ambient Temperature (°C)
105 120
EMC RECOMMENDED CIRCUIT
EN50155(EN50121-3-2)
FUSE
+
Vin
TVS
-
Figure 1
+Vin
+Vo
R-Load
-Vin
-Vo
Table 1
External components
3A time delay fuse
TVS
TEST CONFIGURATION
Note:
To Oscilloscope
L1
+
Vin
-
Figure 2
+Vin
Cin
+Vo
R-Load
-Vin
-Vo
Input reflected-ripple current is measured with an inductor L1 to simulate source impedance.
Table 2
External components
Lin
12μH
Cin 22μF, ESR < 0.2Ω at 100 KHz
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