DC/DC Converters
ctparts.com
SPECIFICATIONS
CTDD3220DF-D1.5K-3MW
Series
4:1 Wide Input Isolated & Regulated
3W Output, Dual Output
Part
Number
CTDD3220DF-2405-D1.5K-3MW
CTDD3220DF-2412-D1.5K-3MW
CTDD3220DF-2415-D1.5K-3MW
CTDD3220DF-4805-D1.5K-3MW
CTDD3220DF-4812-D1.5K-3MW
CTDD3220DF-4815-D1.5K-3MW
Vin
Nom.
(VDC)
24
24
24
48
48
48
Input
Range
(VDC)
9-36
9-36
9-36
18-72
18-72
18-72
Vin
Max.*
(VDC)
40
40
40
80
80
80
Vout
(VDC)
±5
±12
±15
±5
±12
±15
Iout
Max.
(mA)
±300
±125
±100
±300
±125
±100
Iout
Min.
(mA)
±30
±12
±10
±30
±12
±10
Effi.
Typ.
(%)
74
81
81
77
84
82
Not shown at actual size.
*If Input voltage above specified may cause permanent damage to the device
Compliant
RoHS
ISOLATION SPECIFICATIONS
Item
Isolation Voltage
Isolation Resistance
Test Condition
Flash tested for 1 minute
Test at 500VDC
MIN
1500
1000
TYP
MAX
Units
VDC
MΩ
OUTPUT SPECIFICATIONS
Item
3W Output Power
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
100-650(PFM)
Test Condition
MIN
0.3
±1
TYP
MAX
3
±3
±2
±1
0.03
40
Units
W
%
%
%
%/°C
mVp-p
mVp-p
KHz
FEATURES
Efficiency:
To 82%
Temperature Range:
-40°C to +85°C
Isolation:
1.5KVDC
Package:
Metal SUS
Miscellaneous:
Wide (4:1) Input Range. Dual Output. No heat
sink required. Continuous Short Circuit Protection.
Samples available.
Isolation Capacitance
150
PF
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
CHARACTERISTICS
Output Short Circuit Protection:
Continuous
Temperature Rise at Full Load:
30°C (Typ.)
Cooling:
Free air convection
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 SUS
MTBF:
>1,000,000 hours
Miscellaneous:
RoHS Compliant.
Output Power (%)
100
80
60
40
20
0
-40
0
120
40
71 85
Operating Temperature
(°C)
Safe Operating Area
01.31.07
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
CTDD3220DF-D1.5K-3MW Series
Wide Input Isolated & Regulated
3W Output, Dual Output
OUTLINE DIMENSIONS & RECOMMENDED FOOTPRINT DETAILS
CTDD3220DF-D1.5K-3MW Package
Bottom View
Side
View
31.80
0.50
10.0
1
15.24
2
10 11 12
20.30
24 23
15
13
5.08
2.00
4.00
27.94
Note: All pins on a 2.54mm pitch; all pin diameters are 0.50mm; all dimensions in mm. (Tolerance:±0.10)
PIN CONNECTIONS
Bottom View
Pin
1, 2
10, 11
12
13
15
23, 24
Function
VIN
0V
NC
-Vo
+Vo
GND
1
2
10 11 12
24 23
15
13
RECOMMENDED CIRCUIT
All the CTDD3220DF-D1.5K-3MW
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)
External Capacitor Table (table 1)
Figure 2
Vin
5V
&
12V
24V
&
48V
C
in
C
out
(0+70°C)
C
out
(-40+85°C)
Figure 1
Input Current (A)
lp
100µF
100µF
(electrolytic
capacitor)
47µF
(tantalum
capacitor)
Vin
+
Cin
Cout
+
+
Vo+
0V
Vo-
10µF
GND
DC
DC
Cout
Input Voltage
Range
Input Voltage (V)
01.31.07
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
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