CT CTDD3120DF-D1.5K-3 Dc/dc converter Datasheet

DC/DC Converters
CTDD3120DF-D1.5K-3
Series
4:1 Wide Input Isolated & Regulated
3W Output, Dual Output
Not shown at actual size.
ctparts.com
SPECIFICATIONS
Part
Number
Vin
Nom.
(VDC)
Input Range
(VDC)
Vin
Max.*
(VDC)
Vout
(VDC)
CTDD3120DF-2405-D1.5K-3
CTDD3120DF-2412-D1.5K-3
CTDD3120DF-2415-D1.5K-3
24
24
24
9-36
9-36
9-36
40
40
40
±5
±12
±15
CTDD3120DF-4805-D1.5K-3
CTDD3120DF-4812-D1.5K-3
CTDD3120DF-4815-D1.5K-3
48
48
48
18-72
18-72
18-72
80
80
80
±5
±12
±15
Iout
Max.
(mA)
Iout
Min.
(mA)
Effi.
Typ.
(%)
±300
±125
±100
±30
±12
±10
72
78
76
±300
±125
±100
±30
±12
±10
72
78
76
*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 78%
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. Short Circuit Protection. Custom service available.
Samples available.
MAX
Units
3
W
±1
±3
%
Voltage accuracy
Refer to Recommended Circuit
Load regulation
From 10% to 100% load
±0.5
±1
%
Line regulation
Input Voltage from low to high
±0.2
±0.5
%
Temperature drift (Vout)
Refer to Temp. Derating Graph
Ripple
20MHz Bandwidth
Noise
20MHz Bandwidth
Switching frequency
100% load, nominal input voltage
50
±0.03
%/°C
50
mVp-p
150
mVp-p
300 (PFM)
KHz
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
Output Short Circuit Protection: Continuous Automatic
Recovery.
Temperature Rise at Full Load: 15°C (Typ.)
Cooling: Free air convection
No Load, Power Consumption: 200mW (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: Plastic (UL94-V0)
MTBF: >1,000,000 hours
Miscellaneous: RoHS Compliant.
Output Power (%)
120
100
80
60
Safe Operating Area
40
20
0
-40
0
120
40
71 85
Operating Temperature (°C)
08.13.07
Technologies
TYP
0.3
CHARACTERISTICS
CENTRAL
MIN
Manufacturer of Passive and Discrete Semiconductor Components
800-684-5322 Inside US
949-453-1811 Outside US
Copyright © 2007 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
CTDD3120DF-D1.5K-3 Series
4:1 Wide Input Isolated & Regulated
3W Output, Dual Output
OUTLINE DIMENSIONS & RECOMMENDED FOOTPRINT DETAILS
CTDD3120DF-D1.5K-3 Package
2
Bottom View
Side View
31.80
9.45
3
0.50
9 10 11
15.24
20.30
23 22
16 15 14
2.54
2 x 2.54
4.00
22.86
Note: All pin diameter: 0.8 ± 0.05; Tolerances: ± 0.5
PIN CONNECTIONS
Bottom View
2
3
9 10 11
23 22
16 15 14
Pin
Function
2, 3
10, 15
14
11
9, 16
22, 23
GND
NC
+Vo
-Vo
0V
Vin
RECOMMENDED CIRCUIT
All the CTDD3120DF-D1.5K-3 Series have been tested according to the following recommended testing circuit before
leaving factory. This series should be tested under load (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.
Vin
24V
&
48V
C in
10µF 47µF
C out
(0+70°C)
100µF
(electrolytic
capacitor)
Figure 1
C out
(-40+85°C)
Vo+
0V
47µF
(tantalum
capacitor)
Input Current(A)
Figure 2
External Capacitor Table (table 1)
Vo-
Ip
Input Voltage
Range
Input Voltage (V)
CENTRAL
Technologies
08.13.07
Manufacturer of Passive and Discrete Semiconductor Components
800-684-5322 Inside US
949-453-1811 Outside US
Copyright © 2007 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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