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| DC/DC Converters ctparts.com SPECIFICATIONS 4:1 Wide Input Isolated & Regulated 3W Output, Dual Output Not shown at actual size. CTDD3120DF-D1.5K-3 Series Part Number CTDD3120DF-2405-D1.5K-3 CTDD3120DF-2412-D1.5K-3 CTDD3120DF-2415-D1.5K-3 CTDD3120DF-4805-D1.5K-3 CTDD3120DF-4812-D1.5K-3 CTDD3120DF-4815-D1.5K-3 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. (%) 72 78 76 72 78 76 *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 M 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 20MHz Bandwidth 20MHz Bandwidth 100% load, nominal input voltage 50 Test Condition MIN 0.3 1 0.5 0.2 TYP MAX 3 3 1 0.5 0.03 50 150 300 (PFM) Units W % % % %/C mVp-p mVp-p KHz FEATURES Efficiency: To 78% Temperature Range: -40C to +85C 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. 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 CHARACTERISTICS Output Short Circuit Protection: Continuous Automatic Recovery. Temperature Rise at Full Load: 15C (Typ.) Cooling: Free air convection No Load, Power Consumption: 200mW (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: >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 08.13.07 Technologies Manufacturer of Passive and Discrete Semiconductor Components 800-684-5322 Inside US 949-453-1811 Outside US Copyright (c) 2007 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-D1.5K-3 Series 4:1 Wide Input Isolated & Regulated 3W Output, Dual Output OUTLINE DIMENSIONS & RECOMMENDED FOOTPRINT DETAILS CTDD3120DF-D1.5K-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 2 x 2.54 2.54 4.00 22.86 Note: All pin diameter: 0.8 0.05; Tolerances: 0.5 PIN CONNECTIONS Bottom View Pin 2, 3 10, 15 14 11 9, 16 22, 23 Function GND NC +Vo -Vo 0V Vin 2 3 9 10 11 23 22 16 15 14 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. Figure 2 Figure 1 Vo+ 0V Vo- Input Current(A) External Capacitor Table (table 1) Vin C in C out (0+70C) 100F (electrolytic capacitor) C out (-40+85C) 47F (tantalum capacitor) Ip 24V & 48V 10F 47F Input Voltage Range Input Voltage (V) 08.13.07 Technologies Manufacturer of Passive and Discrete Semiconductor Components 800-684-5322 Inside US 949-453-1811 Outside US Copyright (c) 2007 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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