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| DC/DC Converters ctparts.com SPECIFICATIONS Wide Input Regulated & Non-Isolated 3W~9W Output, Single Output CTDD2727DF-S Series Part Number CTDD2727DF-0305-S-3 CTDD2727DF-0712-S-3 CTDD2727DF-0724-S-3 CTDD2727DF-1203-S-3 CTDD2727DF-1205-S-3 CTDD2727DF-2403-S-3 CTDD2727DF-2405-S-3 CTDD2727DF-0705-S-5 CTDD2727DF-0712-S-5 CTDD2727DF-1205-S-5 CTDD2727DF-1209-S-5 CTDD2727DF-2405-S-5 CTDD2727DF-0712-S-9 Vin Nom. (VDC) 3.3 7.2 7.2 12 12 24 24 7.2 7.2 12 12 24 7.2 Input Range (VDC) 2.7-5.4 6.4-8.4 6.4-8.4 9-18 9-18 18-35 18-35 6.4-8.4 6.4-8.4 9-18 9-18 18-35 6.4-8.4 Vin Max.* (VDC) 5.4 10 10 20 20 35 35 10 10 20 20 35 10 Vout (VDC) 5 12 24 3.3 5 3.3 5 5 12 5 9 5 12 Iout Max. (mA) 150 250 100 900 600 900 600 1000 417 1000 550 1000 750 Iout Min. (mA) 15 25 10 90 60 90 60 100 42 100 55 100 75 Effi. Typ. (%) 80 81 82 79 81 79 80 85 85 85 87 85 86 Not shown at actual size. Compliant RoHS *If Input voltage above specified may cause permanent damage to the device ISOLATION SPECIFICATIONS Item Isolation Voltage Isolation Resistance Test Condition Flash tested for 1 minute Test at 500VDC MIN 0 0 TYP MAX Units VDC M OUTPUT SPECIFICATIONS FEATURES Efficiency: To 85% Temperature Range: -20C to +71C Package: UL94-V0 Miscellaneous: Wide (2:1) Input Range. No heat sink required. Industry Standard Pinout. Single Output. Custom service available. Samples available. Item 3W Output Power Positive voltage accuracy Load regulation Line regulation Temperature drift (Vout) Ripple Noise 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 30 80 Test Condition MIN 0.3 TYP MAX 3 3 0.5 0.3 0.03 50 150 Units W % % % %/C mVp-p mVp-p CHARACTERISTICS Output Short Circuit Protection: Continuous Temperature Rise at Full Load: 30C (Typ.) Cooling: Free air convection No Load, Power Consumption: 500mW (typical) Operating Temperature Range: -20C to +71C 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. Switching frequency 100% load, nominal input voltage 100 400 KHz 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 01.05.07 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 CTDD2727DF-S Series Wide Input Regulated & Non-Isolated 3W~10W Output, Single Output OUTLINE DIMENSIONS & RECOMMENDED FOOTPRINT DETAILS CTDD2727DF-S Package 27.50 9.00 4.00 20.32 4 3 Side View 27.50 12 Top View CTDD2727DF-S Footprint 1.60o+0.15/-0 2.54 4 3 1 2 2.54 Note: All Pins on a 2.54m pitch; all pin diameters are 0.50mm; all dimensions in mm. PIN CONNECTIONS Pin Function 1 2 3 4 COM Vin +Vo NC 3 21 4 Bottom View RECOMMENDED CIRCUIT All the CTDD2727DF-S 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 packagedproducts. External Capacitor Table (table 1) Figure 2 Vin 5V & 12V 24V & 48V C in C out (0+70C) C out (-40+85C) Figure 1 lp Input Current (A) 100F 100F (electrolytic capacitor) 47F (tantalum capacitor) Vin DC-DC + 100F 25V 100F 25V + Vout Load 10F GND Input Voltage Range Input Voltage (V) GND 01.05.07 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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