PDM1-S Datasheet, PDF (4/6 Pages) CUI INC – DC-DC CONVERTER

CUI Inc │ SERIES: PDM1-S │ DESCRIPTION: DC-DC CONVERTER
DERATING CURVES
date 03/18/2013 │ page 4 of 6
10
7.5
5
2.5
0
-2.5
-5
-7.5
-10
10
Tolerance Envelope Curve
Typical _{Load Line}
20
30
40
50
60
70
80
Output Current Percentage (%)
(Nominal Input Voltage)
2.5
Rated Output Voltage
-2.5
-7.5
90
100
Temperature Derating Curve
100
80
60
Safe operating area
40
20
-40 -20
0
20
40
60
85
Ambient Temperature (°C)
105 120
EMC RECOMMENDED CIRCUIT
Vin
GND
LDM
C1
Vin
+Vo
EUT
GND
- Vo
( 0 V)
C2
LOAD
Recommended external circuit components
Vin
(Vdc)
C1
LDM
C2
5 4.7μF/50V 6.8μH
NC
12 4.7μF/50V 6.8μH
NC
15 4.7μF/50V 6.8μH 470pF/2kV
24 4.7μF/50V 6.8μH 470pF/2kV
TEST CONFIGURATION
Oscilloscope
Lin
DC DC ^Current
Cin Probe
Load
Lin(4.7µH) Cin(220µF, ESR < 1.0Ω at 100 KHz)
External components
Lin
4.7μH
Cin
220μF, ESR < 1.0Ω
at 100 KHz
Note: Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance.
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