DC/DC Converters
ctparts.com
SPECIFICATIONS
CTDD2727DF-S1K-5 Series
Wide Input Isolated & Regulated
5W Output, Single Output
Part
Number
CTDD2727DF-1205-S1K-5
CTDD2727DF-1209-S1K-5
CTDD2727DF-1212-S1K-5
CTDD2727DF-1215-S1K-5
CTDD2727DF-1224-S1K-5
CTDD2727DF-2405-S1K-5
CTDD2727DF-2409-S1K-5
CTDD2727DF-2412-S1K-5
CTDD2727DF-2415-S1K-5
CTDD2727DF-2424-S1K-5
CTDD2727DF-4805-S1K-5
CTDD2727DF-4809-S1K-5
CTDD2727DF-4812-S1K-5
CTDD2727DF-4815-S1K-5
CTDD2727DF-4824-S1K-5
Vin
Nom.
(VDC)
12
12
12
12
12
24
24
24
24
24
48
48
48
48
48
Input Range
(VDC)
9-18
9-18
9-18
9-18
9-18
18-36
18-36
18-36
18-36
18-36
36-72
36-72
36-72
36-72
36-72
Vin
Max.*
(VDC)
20
20
20
20
20
40
40
40
40
40
80
80
80
80
80
Vout
(VDC)
5
9
12
15
24
5
9
12
15
24
5
9
12
15
24
Iout
Max.
(mA)
1000
556
420
333
208
1000
556
420
333
208
1000
556
420
333
208
Iout
Min.**
(mA)
100
56
42
34
21
100
56
42
34
21
100
56
42
34
21
Effi.
Typ.
(%)
74
75
77
80
77
80
81
84
79
82
85
85
Not shown at actual size.
Compliant
RoHS
*If Input voltage above specified may cause permanent damage to the device
**The load should not be less than 10%, otherwise ripple will increase dramatically
ISOLATION SPECIFICATIONS
Item
Isolation Voltage
Test Condition
Flash tested for 1 minute
Test at 500VDC
MIN
1000
1000
TYP
MAX
Units
VDC
MΩ
FEATURES
Efficiency:
To 85%
Temperature Range:
-40°C to +85°C
Isolation:
1KVDC
Miscellaneous:
Wide (2:1) Input Range. Metal Shielding
Package. Short circuit protection. No heat sink required. Industry
Standard Pinout. Single Output. Custom service available.
Samples available.
Isolation Resistance
OUTPUT SPECIFICATIONS
Item
5W Output Power
Positive voltage accuracy
Load regulation
Line regulation
Temperature drift (Vout)
Ripple
Noise
Switching frequency
Refer to Recommended Circuit
From 10% to 100% load
Input Voltage from low to high
Refer to Temp. Derating Graph
20Hz to 300KHz Bandwidth
DC-20MHz Bandwidth
100% load, nominal input voltage
30
80
300
Test Condition
MIN
0.5
±1
±0.5
±0.2
TYP
MAX
5
±3
±1
±0.5
0.03
50
150
Units
W
%
%
%
%/°C
mVp-p
mVp-p
KHz
CHARACTERISTICS
Output Short Circuit Protection:
Continuous
Temperature Rise at Full Load:
30°C (Typ.)
Cooling:
Free air convection
No Load, Power Consumption:
300mW (typical)
Operating Temperature Range:
-40°C to +85°C
Storage Temperature Range:
-55°C to +125°C
Lead Temperature:
300°C (1.5mm from case for 10 seconds)
Storage Humidity Range:
< 95%
Case Material:
Metal
MTBF:
>3,500,000 hours
Miscellaneous:
RoHS Compliant.
Note:
1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output unless
otherwise specified.
TYPICAL CHARACTERISTICS
Temperature Derating Graph
120
Output Power (%)
100
80
60
40
20
0
-40
0
120
40
71 85
Ambient Temperature (°C)
Safe Operating Area
12.13.06
Technologies
Manufacturer of Passive and Discrete Semiconductor Components
800-684-5322
Inside US
949-453-1811
Outside US
Copyright © 2006 by CT Magnetics, DBA Central Technologies. All rights reserved.
CT Magnetics reserves the right to make improvements or change specifications without notice
CENTRAL
DC/DC Converters
ctparts.com
CTDD2727DF-S1K-5 Series
Wide Input Isolated & Regulated
5W Output, Single Output
OUTLINE DIMENSIONS & RECOMMENDED FOOTPRINT DETAILS
CTDD2727DF-S1K-5 Package
27.50
9.00
4.00
20.32
4
3
Side
View
27.50
1 2
Top View
5.08
CTDD2727DF-S1K-5 Footprint
1.60ø+0.15/-0
2.54
4
3
1
2
2.54
Note: All Pins on
a
2.54m pitch;
all
pin diameters
are
0.50mm;
all
dimensions in mm.
PIN CONNECTIONS
Pin Function
1
2
3
4
COM
Vin
+Vo
OV
4
1 2
3
Top View
RECOMMENDED CIRCUIT
All the CTDD2727DF-S1K-5
Series
have
been
tested
according
to the following recommended testing circuit
before
leaving
factory. This
series should be
tested
under
load. Never
be
tested
under
no load (See figure 1 & 2). If you want to further
decrease the input/output ripple, you can increase capacitance properly or choose capacitors with low ESR. However, the
capacitance
should
not
be
too high (See table 1). If you want to
use
the products in high EMI, please choose our metal
packagedproducts.
Figure 2
lp
Vin
C
in
C
out
(-40+85°C)
100µF/1A
(electrolytic
capacitor)
Figure 1
Vin
GND
+
Cin
+
Vout
0V
12V &
24V & 48V 100µF
Cout
DC
DC
Input Current (A)
External Capacitor Table (table 1)
Input Voltage
Range
Input Voltage (V)
12.13.06
Technologies
Manufacturer of Passive and Discrete Semiconductor Components
800-684-5322
Inside US
949-453-1811
Outside US
Copyright © 2006 by CT Magnetics, DBA Central Technologies. All rights reserved.
CT Magnetics reserves the right to make improvements or change specifications without notice
CENTRAL
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