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