CT CTDD3220DF-4805-D1.5K-3W Dc/dc converter Datasheet

DC/DC Converters
CTDD3220DF-D1.5K-3W
Series
4:1 Wide Input Isolated & Regulated
3W Output, Dual Output
Not shown at actual size.
ctparts.com
SPECIFICATIONS
Vin
Nom.
(VDC)
Input
Range
(VDC)
Vin
Max.*
(VDC)
Vout
(VDC)
CTDD3220DF-2405-D1.5K-3W
CTDD3220DF-2412-D1.5K-3W
CTDD3220DF-2415-D1.5K-3W
24
24
24
9-36
9-36
9-36
40
40
40
±5
±12
±15
CTDD3220DF-4805-D1.5K-3W
CTDD3220DF-4812-D1.5K-3W
CTDD3220DF-4815-D1.5K-3W
48
48
48
18-72
18-72
18-72
80
80
80
±5
±12
±15
Part
Number
Iout
Max.
(mA)
Iout
Min.
(mA)
Effi.
Typ.
(%)
±300
±125
±100
±30
±12
±10
74
81
81
±300
±125
±100
±30
±12
±10
77
84
82
*If Input voltage above specified may cause permanent damage to the device
ISOLATION SPECIFICATIONS
RoHS
Compliant
Item
Test Condition
MIN
Isolation Voltage
Flash tested for 1 minute
1500
VDC
Test at 500VDC
1000
MΩ
Isolation Resistance
TYP
MAX
Units
OUTPUT SPECIFICATIONS
Item
Test Condition
3W Output Power
FEATURES
Efficiency: To 82%
Temperature Range: -40°C to +85°C
Isolation: 1.5KVDC
Package: UL94-V0
Miscellaneous: Wide (4:1) Input Range. Dual Output. No heat
sink required. Continuous Short Circuit Protection.
Samples available.
MIN
TYP
0.3
%
Load regulation
From 10% to 100% load
±2
%
Line regulation
Input Voltage from low to high
±1
%
Temperature drift (Vout)
Refer to Temp. Derating Graph
0.03
%/°C
Ripple
20Hz to 300KHz Bandwidth
40
mVp-p
Noise
DC-20MHz Bandwidth
100
mVp-p
100-650(PFM)
KHz
Isolation Capacitance
150
PF
Note:
1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output unless
otherwise specified.
Temperature Derating Graph
CHARACTERISTICS
120
Output Power (%)
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: Pastic (UL94-V0)
MTBF: >1,000,000 hours
Miscellaneous: RoHS Compliant.
100
80
60
Safe Operating Area
40
20
0
-40
0
120
40
71 85
Operating Temperature (°C)
01.31.07
Technologies
W
±3
Refer to Recommended Circuit
TYPICAL CHARACTERISTICS
CENTRAL
Units
3
Voltage accuracy
Switching frequency
±1
MAX
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
DC/DC Converters
ctparts.com
CTDD3220DF-D1.5K-3W Series
Wide Input Isolated & Regulated
3W Output, Dual Output
OUTLINE DIMENSIONS & RECOMMENDED FOOTPRINT DETAILS
CTDD3220DF-D1.5K-3W Package
1
Bottom View
Side View
31.80
9.50
2
0.50
10 11 12
15.24
20.30
24 23
15
13
2.00
5.08
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
1
2
10 11 12
24 23
15
13
Pin
Function
1, 2
10, 11
12
13
15
23, 24
VIN
0V
NC
-Vo
+Vo
GND
RECOMMENDED CIRCUIT
All the CTDD3220DF-D1.5K-3W 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
packaged products.
External Capacitor Table (table 1)
Figure 2
5V
&
12V
24V
&
48V
C in
C out
(0+70°C)
C out
(-40+85°C)
lp
Figure 1
100µF
100µF
(electrolytic
capacitor)
47µF
(tantalum
capacitor)
Vin
+Cin
10µF
DC
DC
Cout
+
Cout
+
Vo+
0V
Input Current (A)
Vin
GND
Input Voltage (V)
Technologies
01.31.07
CENTRAL
Input Voltage
Range
Vo-
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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