DC-DC Converter UNIT
CBR Series
( 2W-3W REGULATED DC-DC CONVERTER )
FEATURES
3000VDC ISOLATION
HIGH EFFICIENCY
NO HEATSINK REQUIRED
LOW COST
NO EXTERNAL COMPONENTS
REQUIRED
UP TO 3W REGULATED OUTPUT
POWER
DUAL IN LINE PACKAGE
100% BURNED IN
LOW NOISE
MTBF > 850,000 HOURS
OUTPUT SPECIFICATIONS
Voltage Setpoint Accuracy
Temperature Coefficient
Ripple & Noise (20MHz BW)
Line Regulation
1
Load Regulation
2
Short Circuit Protection
Short Circuit Restart
+/-3% max
+/-0.03%/
O
C
100mVp-p max
+/-0.5% max
+/-0.5% max
Current Limit Protection
Automatic
INPUT SPECIFICATIONS
Input Voltage Range
Input Filter
+/-10% max
Pi Network
GENERAL SPECIFICATIONS
Efficiency
Isolation Voltage
3
Isolation Resistance
Switching Frequency
Isolation Capacitance
MTBF
Weight
60% min
3000 VDC min
9
10 ohms min
25 KHz min
80pF max
850,000 Hours
12.0g-14.4g
Non-Conductive Plastic
31.8mm*20.3mm*10.2mm
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature
Storage Temperature
Cooling
-25
O
C to +71
O
C
-55
O
C to +125
O
C
Free-Air Convection
ALL SPECIFICATIONS TYPICAL AT NOMINAL
LINE,
FULL
LOAD
,
AND
25
O
Case Material
Case Size
C
UNLESS
OTHERWISE NOTED.
1
2
3
High Line to Low Line.
Load Regulation is for output load current change from 10% to 100%.
For 60 seconds
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Version: 4-Oct-02
DC-DC Converter UNIT
CBR Series
( 2W-3W REGULATED DC-DC CONVERTER )
TYPICAL APPLICATIONS
SINGLE OUTPUT
INPUT
+Vin
+Vout
DUAL OUTPUT
INPUT
+Vin
+Vout
OUTPUT
OUTPUT
LOAD1
DC-DC
CONVERTER
-Vin
-Vout
LOAD
DC-DC
CONVERTER
-Vin
Common
LOAD2
-Vout
TYPICAL PERFORMANCE CUREVES
Specifications typical at ta=25
O
C,nominal input voltage , rated output current unless otherwise specified.
OUTPUT LOAD vs EFFICIENCY
80%
OUTPUT LOAD vs OUTPUT VOLTAGE
60%
40%
20%
0%
0%
20%
OUTPUT VOLTAGE
CHANGE(%)
100%
10%
5%
0%
-5%
-10%
0%
20%
40%
60%
80% 100%
EFFICIENCY(%)
SAFE
OPERATING
AREA
40%
60%
80%
OUTPUT LOAD(%)
TEMPERATURE DERATING
OUTPUT LOAD(%)
INPUT VOLTAGE vs EFFICIENCY
100%
OUTPUT POWER(%)
125%
100%
75%
50%
25%
0%
-25
0
25
50
70
100
EFFICIENCY(%)
80%
60%
40%
20%
0%
-10
-5
Nom
5
10
TA(degree C)
INPUT VOLTAGE(%)
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Page: 4 / 5
Version: 4-Oct-02
DC-DC Converter UNIT
CBR Series
( 2W-3W REGULATED DC-DC CONVERTER )
CBR SERIES APPLICATION NOTES:
EXTERNAL CAPACITANCE REQUIREMENTS:
No external capacitance is required for operation of the CBR series.
To meet the reflected ripple requirements of the converter, an input impedance of less than 0.5 ohm
from DC to 100KHz is required.
External output capacitance is not required for operation, however it is recommended that 10uF
tantalum and 0.1uF ceramic capacitance be selected for reduced system noise.
Additional output capacitance may be added for increased filtering, but should not exceed 220uF.
Negative Outputs:
A negative output voltage may be obtained by connecting the +OUT to circuit ground and
connecting –OUT as the negative output.
FOR MORE INFORMATION CALL:
Power Systems – The Power Solution
Ilsfeld-Auenstein ( Germany ) Dörnet 8
E-mail: Info@Power-Systems.de
Tel: + 49 / 70 62 / 67 59 – 6
Fax: + 49 / 70 62 / 67 59 -80
Home Page: www.Power-Systems.de
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Version: 4-Oct-02
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