PYB20-T Datasheet, PDF (6/8 Pages) CUI INC – DC-DC CONVERTER

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CUI Inc │ SERIES: PYB20-T & PYB20-U │ DESCRIPTION: DC-DC CONVERTER
date 06/16/2015 │ page 6 of 8
DERATING CURVES
With heatsink
100
80
Without heatsink
60
Safe operating area
40
20
-40 -20
0
20
40 5560
85
Ambient Temperature (°C)
EMC RECOMMENDED CIRCUIT
Vin
GND
Figure 1
F US E
M OV
+
C0
(a)
LDM1
C1
(b)
CY1
Vin
+Vo
DC /DC
GND -Vo
CY2
( 0 V)
Cout
LOAD
Table 1
Recommended external circuit components
Vin (Vdc)
24
48
FUSE Choose according to input current
MOV
S14K35
S14K60
LDM1
4.7μH
4.7μH
C0
330μF/50V
330μF/100V
C1
1μF/50V
1μF/100V
CY1
1nF/2kV
1nF/2kV
CY2
1nF/2kV
1nF/2kV
Note:
1. See Table 2 for Cout values.
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