Datasheet
Table Of Contents
- 1. Intended Use
- 2. Installation Requirements
- 3. Input Voltage
- 4. Soft-start and Input Inrush Current Surge
- 5. Output
- 6. Hold-up Time
- 7. Efficiency and Power Losses
- 8. Functional Diagram
- 9. Front Side and User Elements
- 10. Terminals and Wiring
- 11. Reliability
- 12. EMC
- 13. Environment
- 14. Protection Features
- 15. Safety Features
- 16. Dielectric Strength
- 17. Used Substances
- 18. Approvals
- 19. Fulfilled Standards
- 20. Physical Dimensions and Weight
- 21. Accessories
- 22. Application Notes
- 22.1. Peak Current Capability
- 22.2. Back-feeding Loads
- 22.3. Inductive and Capacitive Loads
- 22.4. Charging of Batteries
- 22.5. External Input Protection
- 22.6. Requirements for the Supplying Source
- Parallel Use to Increase Output Power
- 22.8. Parallel Use for Redundancy
- 22.9. Daisy Chaining of Outputs
- Series Operation
- 22.11. Use in a Tightly Sealed Enclosure
- 22.12. Mounting Orientations
CD5.243
CD-Series
DC/DC Converter 24V, 4A
5. OUTPUT
Output voltage nom. 24V
Adjustment range min. 23-28V guaranteed
max. 30V at clockwise end position of potentiometer
Factory setting 24.1V ±0.2%, at full load, cold unit
Line regulation max. 25mV Input voltage variations between 8.4 to 16.2Vdc
Load regulation max. 100mV static value, 0A Æ 4A
Ripple and noise voltage max. 50mVpp 20Hz to 20MHz, 50Ohm
Output capacitance typ. 2 200μF
Output current nom. 4.8A at 24V, ambient < 45°C, see Fig. 5-1
nom. 4A at 24V, ambient < 60°C, see Fig. 5-1
nom. 4.1A at 28V, ambient < 45°C, see Fig. 5-1
nom. 3.4A at 28V, ambient < 60°C, see Fig. 5-1
Output power nom. 116W for ambient temperatures < 45°C
nom. 96W for ambient temperatures < 60°C
Short-circuit current min. 6A continuous current, short circuit impedance 200mOhm
max. 9A continuous current, short circuit impedance 200mOhm
Fig. 5-1 Output voltage vs. output current at
12Vdc input voltage, typ.
Fig. 5-2 Current limitation vs. input voltage,
(23V constant voltage load), typ.
Output Voltage
0
048
4
8
12
28V
16
20
24
12
A
1062
Adjustment
Range
Output
Current
Output Current
4.8
81113
4.9
5.0
5.1
5.6A
5.3
5.4
5.5
16Vd
c
15129
5.2
10 14
Input Voltage
Peak current capability (up to several milliseconds)
The DC/DC converter can deliver a peak current, which is higher than the specified short term current. This helps to
start current demanding loads or to safely operate subsequent circuit breakers.
The extra current is supplied by the output capacitors inside the DC/DC converter. During this event, the capacitors will
be discharged and causes a voltage dip on the output. Detailed curves can be found in chapter 22.1.
Peak current voltage dips typ. from 24V to 18V at 8A for 50ms, resistive load
typ. from 24V to 12.5V at 16A for 2ms, resistive load
typ. from 24V to 10V at 16A for 5ms, resistive load
Oct 2009 / Rev. 1.0 DS-CD5.243-EN
All parameters are specified at 24V, 4A, 12Vdc input voltage, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
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