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DC/DC Converters
ctparts.com
SPECIFICATIONS
CTDD3120DF-T1K-3 Series
Wide Input Isolated & Regulated 3W Output, Twin Output
Part Number CTDD3120DF-050505-T1K-3 CTDD3120DF-050909-T1K-3 CTDD3120DF-051212-T1K-3 CTDD3120DF-051515-T1K-3 CTDD3120DF-120505-T1K-3 CTDD3120DF-120909-T1K-3 CTDD3120DF-121212-T1K-3 CTDD3120DF-121515-T1K-3 CTDD3120DF-150505-T1K-3 CTDD3120DF-150909-T1K-3 CTDD3120DF-151212-T1K-3 CTDD3120DF-151515-T1K-3 CTDD3120DF-240505-T1K-3 CTDD3120DF-240909-T1K-3 CTDD3120DF-241212-T1K-3 CTDD3120DF-241515-T1K-3 CTDD3120DF-480505-T1K-3 CTDD3120DF-480909-T1K-3 CTDD3120DF-481212-T1K-3 CTDD3120DF-481515-T1K-3
Vin Nom. (VDC) 5 5 5 5 12 12 12 12 15 15 15 15 24 24 24 24 48 48 48 48
Input Range (VDC) 4.5-9.0 4.5-9.0 4.5-9.0 4.5-9.0 9.0-18 9.0-18 9.0-18 9.0-18 12-24 12-24 12-24 12-24 18-36 18-36 18-36 18-36 36-72 36-72 36-72 36-72
Vin Max.* (VDC) 11 11 11 11 22 22 22 22 30 30 30 30 40 40 40 40 80 80 80 80
Vo1,Vo2 (VDC) 5 9 12 15 5 9 12 15 5 9 12 15 5 9 12 15 5 9 12 15
Io1, Io2 Max. (mA) 300 160 125 100 300 160 125 100 300 160 125 100 300 160 125 100 300 160 125 100
Io1, Io2 Min. (mA) 30 16 13 10 30 16 13 10 30 16 13 10 30 16 13 10 30 16 13 10
Effi. Typ. (%) 72 74 78 78 73 77 79 79 74 78 79 79 77 79 80 80 77 80 81 81
Not shown at actual size.
Compliant
RoHS
*If Input voltage above specified may cause permanent damage to the device
FEATURES
Efficiency: To 85% Temperature Range: -40C to +85C Package: UL94-V0 Isolation: 1KVDC Miscellaneous: Wide (2:1) Input Range. No heat sink required. Industry Standard Pinout. Twin Isolated Output. Custom service available. Samples available.
ISOLATION SPECIFICATIONS
Item Isolation Voltage Isolation Resistance Test Condition Flash tested for 1 minute Test at 500VDC MIN 1000 1000 TYP MAX Units VDC M
OUTPUT SPECIFICATIONS
Item 3W Output Power Output voltage accuracy Load regulation Line regulation Temperature drift (Vout) Ripple Noise Switching frequency 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 10% load, nominal input voltage 80 250 30 80 Test Condition MIN 0.3 1 0.5 0.2 TYP MAX 3 3 1 0.5 0.03 60 150 200 600 Units W % % % %/C mVp-p mVp-p KHz KHz
CHARACTERISTICS
Output Short Circuit Protection: Continuous Temperature Rise at Full Load: 30C (Typ.) Cooling: Free air convection No Load, Power Consumption: 100mW (typical) Operating Temperature Range: -40C to +85C Storage Temperature Range: -55C to +125C Lead Temperature: 300C (1.5mm from case for 10 seconds) Storage Humidity Range: < 95% Case Material: Plastic (UL94-V0) MTBF: >3,500,000 hours Miscellaneous: RoHS Compliant.
Note: 1. All specifications measured at TA=25C, 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
12.20.06
Technologies
Manufacturer of Passive and Discrete Semiconductor Components 800-684-5322 Inside US 949-453-1811 Outside US
Copyright (c) 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
CTDD3120DF-T1K-3 Series
Wide Input Isolated & Regulated 3W Output, Twin Output OUTLINE DIMENSIONS & RECOMMENDED FOOTPRINT DETAILS
CTDD3120DF-T1K-3 Package
Bottom View
Side View
31.80 0.50
9.45
2 15.24
3
9 10 11
20.30 23 22 16 15 14 5.08
2.54
4.00
22.86
Note: All pins on a 2.54mm pitch; all pin diameters are 0.50mm; all dimensions in mm. (Tolerance:0.25)
PIN CONNECTIONS
Bottom View
Pin 2, 3 14 16 11 9 22, 23
Function GND Vo1 0V1 Vo2 0V2 Vin
2
3
9 10 11
23 22
16 15 14
RECOMMENDED CIRCUIT
All the CTDD3120DF-T1K-3 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
Vin 5V & 12V 24V & 48V
C in
C out (0+70C)
C out (-40+85C)
Figure 1 CS PIN Vin +Cin DC DC
Cout
lp Input Current (A)
100F
+ CS CAP
Cout
100F (electrolytic capacitor)
47F (tantalum capacitor)
DC
+
0V1 Vout1 Vout2 0V2
10F
GND
+
Input Voltage Range Input Voltage (V)
12.20.06
Technologies
Manufacturer of Passive and Discrete Semiconductor Components 800-684-5322 Inside US 949-453-1811 Outside US
Copyright (c) 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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