DC/DC Converters
ctparts.com
SPECIFICATIONS
Please specify “H” for heat sink mounted.
Example: CTDD5025DF-2403-30MH
CTDD5025DF-30M Series
Wide Input Isolated & Regulated
30W Single Output
Part
Number
CTDD5025DF-2403-30M_
CTDD5025DF-2405-30M_
CTDD5025DF-2412-30M_
CTDD5025DF-2415-30M_
Not shown at actual size.
CTDD5025DF-4803-30M_
CTDD5025DF-4805-30M_
CTDD5025DF-4812-30M_
CTDD5025DF-2815-30M_
Vin
Nom.
(VDC)
24
24
24
24
48
48
48
48
Input Range
(VDC)
18-36
18-36
18-36
18-36
36-75
36-75
36-75
36-75
Vin
Max.*
(VDC)
40
40
40
40
80
80
80
80
Vout
(VDC)
3.3
5
12
15
3.3
5
12
15
Iout
Min.**
(mA)
6000
6000
2500
2000
6000
6000
2500
2000
Capacitor
Load Max.
(µF)
6800
6800
680
680
6800
6800
680
680
Effi.
Typ.
(%)
84
86
87
87
84
86
88
87
Compliant
RoHS
*If Input voltage above specified may cause permanent damage to the device
**Minumum operating current for 10% of rated current, if less than 10% rated current, output ripple may
increase rapidly, the amplitude
<
1V.
INPUT SPECIFICATIONS
Item
Start-up time
Test conditions
Nominal
Under Voltage lock off
(24V)
Nominal
(48V)
Input Filter
Ctrl
Models ON
Models OFF
Input Current (Models OFF)
Models ON
Models OFF
Models ON
Models OFF
Min.
Typ.
10
Max.
17.8
16
35.8
33
L-C
3-40VDC
0-1.2VDC
1
VDC
Units
ms
FEATURES
Efficiency:
To 88%
Temperature Range:
-40°C to +85°C
I/O-Isolation:
1.5KVDC
Miscellaneous:
Six-sided metal shield. Internal SMD
construction. Industry standard pin out. 2:1 wide input voltage
range.
Samples available.
mA
OUTPUT SPECIFICATIONS
Item
Output Power
Output Voltage Accuracy
Load Regulation
Line Regulation
Test conditions
Refer to recommended circuit
From 10% to 100% load
Nominal Input
Input Voltage from low to high
100 % load
20MHz Bandwidth
25% - 50% - 25% load or
Min.
Typ.
±1
±0.5
±0.2
50
200
Max.
30
±3
±1
±0.5
Units
W
CHARACTERISTICS
Storage Humidity Range:
< 95%
Short Circuit Protection:
Automatic Recovery
Operating Temperature Range:
-40°C to +85°C
Storage Temperature Range:
-55°C to +125°C
Temperature Rise at Full Load:
80°C (Max.)
Lead Temperature:
300°C (1.5mm from case for 10 seconds)
Isolation Voltage:
1500VDC (Test for 1 minute and 1mA max.)
Isolation Resistance:
1000M
Ω
min. (Test at 500VDC)
Isolation Capacitance:
1000pF typ. at 100kHz/0.1V
Switching Frequency:
350kHz typ.
Cooling:
Free air convection
Case Material:
Nickle-coated copper (six-sided)
MTBF:
>1,000,000 hours
Miscellaneous:
RoHS Compliant.
%
Ripple and Noise
Transistent Recovery Time
Transistent Peak Deciation 50% - 75% - 50% load step change
Over Current Protection
Input Voltage Range
Short Circuit Protection
Input Voltage Range
3.3V output
5V output
Over Voltage Protection
12V output
15V output
Temperatue Drift (Vout)
Trim
120
mV
500
µs
±5
%
130
150
%
Hiccup, automatic recovery
3.9
6.2
VDC
15
18
±0.02
%/°C
±10%Vo
VDC
08.12.09
CENTRAL
Manufacturer of Passive Components
800-684-5322
Inside US
949-453-1811
Outside US
Copyright © 2009 by CT Magnetics, DBA Central Technologies. All rights reserved.
CT Magnetics reserves the right to make improvements or change specifications without notice
TECHNOLOGIES
DC/DC Converters
ctparts.com
CTDD5025DF-30M Series
Wide Input Isolated & Regulated
30W Single Output
OUTLINE DIMENSIONS & RECOMMENDED FOOTPRINT DETAILS
CTDD5025DF-30M Package
11.50
[0.453]
CTDD5025DF-30M Footprint
∅1.20
[0.047]
CTDD5025DF-30M Heat Sink Assembly
Thermal Pad
25.40[1.000 ]
Heat sink
(Side View)
3.50[0.138]
4.10 0.50
[0.161 0.020]
Metal
Plastic
4
2.54[0.100]
3
5
1
2
6
Converter
0.50[0.020]
1.00[0.039]
5 0.80 [2.000]
17.50 [0.68 9]
Clamp
5.08[0.200]
50.80[2.000]
45.72[1.800]
2.54[0.100]
10.16 10.16
[0.400] [0.400]
25.40[1.000]
1
6
FOOTP RINT DETAILS
Function
Pin
Vin
1
2
GND
3
Ctrl
4
Trim
5
0V
6
+Vo
10.16
[0.400]
2
(Bottom View )
5
2 1.8 0Mi n [0.858 ]
3
4
Metal
Unit: mm[inch]
Pin diameter tolerances: ±0.10mm [0.004in]
General tolerances: ±0.25mm [±0.010in]
The CTRL control pin voltage is referenced to GND
31.00Max[1.22 0]
Unit: mm[inch]
Tolerances: ±0.50mm [0.020in]
1. If use of heat sinks, make sure there is
enough space for a specific size in the above
graph.
2. Products will be supplied with heat sinks
already mounted, separate heat sinks are not
available.
TEMPERATURE DERATING GRAPH
120
100
(Without heat sink)
120
100
(With heat sink)
Output Power (%)
60
40
20
0
Out put Power (%)
80
Safe Operating Area
80
60
40
20
0
-40
0
40
60
85
120
Safe Operating Area
-40
0
40 50
85
120
Operating Temp( C)
Operating Temp( C)
RECOMMENDED CIRCUIT & CAPACITANCE
Capacitance
Output
Cout ( F)
Voltage
3.3(VDC)
470/220
5(VDC)
12(VDC)
15(VDC)
470/220
220/100
220/100
In order to obtain better performance for the
DC/DC models, it is recommended to use
input and output filters as shown.
Cin ( F)
Vin
100
C in
Vout
DC
DC
C o ut
GND
0V
Note:
1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output unless otherwise specified.
2. Capacitor Max. load tested at nominal input voltage, full load and constant resistive load.
3. Only typical model listed. Non-standard models will be different from the above, please contact us for more details.
4. In this datasheet, all the test methods of indications are based on corporate standards.
08.12.09
CENTRAL
Manufacturer of Passive Components
800-684-5322
Inside US
949-453-1811
Outside US
Copyright © 2009 by CT Magnetics, DBA Central Technologies. All rights reserved.
CT Magnetics reserves the right to make improvements or change specifications without notice
TECHNOLOGIES
