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| CXA20 Series DC/DC CONVERTERS * * * * 20W DC/DC Converters Single and dual output 1 4:1 input voltage range No minimum load on singles 6A on 3.3V output (@ 48Vin) at 50C in still air Wide operating temperature with overtemperature protection * 10% output voltage trim * Remote On/Off control * Overvoltage protection The CXA20 is a new 20W addition to the CXA family of open-frame, isolated, DC/DC converters. The five model series features a 4:1 input voltage range of 18 to 75VDC, making it suitable for a wide variety of communications and distributed power applications. With its 2.0 x 1.6 inch industry standard footprint, the CXA20 provides an easy upgrade option for new and existing Artesyn customers seeking a highperformance, cost-effective power supply. The CXA20 is available in output voltages of 3.3V, 5V, 12V, 5V and 12V. The 3.3V version delivering up to 6A is fully rated to 20W. Typical efficiency for the CXA20 is 83 percent. The CXA20 offers remote on/off, as well as overvoltage, overtemperature and short circuit protection features. 2 YEAR WARRANTY All specifications are typical at nominal input, full load at 25C unless otherwise stated SPECIFICATIONS OUTPUT SPECIFICATIONS Voltage accuracy Line regulation (LL to HL) Load regulation (not incl. cross reg.) Singles/dual positives Dual negatives Full load to minimum load S3V3 Singles/dual positives Dual negatives Singles Duals (for imbalanced loads) S3V3, S05, D05 S12, D12 All models 1.0% 0.1% 0.1% 0.2% 0.1% 0.1% None 10% EMC CHARACTERISTICS ETS 300 386-1 table 5 Conducted emissions Radiated emissions Immunity: ESD air ESD contact EFT DC power EFT signal Radiated field enclosure Surges indoor signal Conducted (DC power) Conducted (signal) Input transients EN55022, ext. cap. (Note 5) Level A EN55022, external filter, Level B VDE0878, 48V models EN55022-B See App. Note 107 EN61000-4-2 8kV (NP), 15kV (RP) EN61000-4-2 6kV (NP), 8kV (RP) EN61000-4-4 2kV (NP), 4kV (LFS) EN61000-4-4 1kV (NP), 2kV (LFS) EN61000-4-3 10V/m (NP) EN61000-4-5 500V (RP) EN61000-4-6 10V (NP) EN61000-4-6 10V (NP) ETS 300 132-2, ETR 283 Minimum load Ripple and noise 20MHz bandwidth Temperature coefficient Overvoltage protection Short circuit protection Short <20m Transient response 75mV pk-pk max. 100mV pk-pk max. 20mV rms max. 0.02%/C GENERAL SPECIFICATIONS Efficiency Overtemp. shutdown Isolation voltage Switching frequency Approvals and standards (See Notes 6,7,8) Material flammability Weight MTBF (Representative model 48S05 @ 48Vin) See table 120C Input/output test voltage 1500VDC Fixed 400kHz EN60950 UL1950 File No. E136005 UL94V-0 26g (0.92 oz) MIL-HDBK-217F 400,000 hours Parts stress method Ground Benign @ 25C See Application Note 107 Hiccup 25% load step Continuous automatic recovery 2.0% max. dev., 300s recovery to within total error band 7.0% Load cross regulation (See Note 1) INPUT SPECIFICATIONS Input voltage range Input fuse Max. input rise and fall time UVLO turn ON voltage UVLO turn OFF voltage Remote ON/OFF Logic compatibility ON OFF 10% load to full load, either output 48Vin nominal HRC recommended 48V ETS300-132 (See Note 4) (See Note 4) 18 to 75VDC 2.0A 5V/ms 92% 86% ENVIRONMENTAL SPECIFICATIONS Thermal performance Operating ambient -40C to +60C, temperature (See Note 9) Non-operating -55C to +125C Classes T3.1, 3.2, 3.3, 3.5 Low: IEC 68-2-1 -40C High: IEC 68-2-2 +60C Change: IEC 68-2-14 -40C to +60C IEC 68-2-56 10% to 100% RH IEC 68-2-30 Condensation File Name: CXA20.PDF Rev: 11 Jan 2002 ETS 300 019-2-3 Air temperature CMOS/TTL/Open Collector Open circuit or >2VDC <1.2VDC Relative humidity CXA20 Series DC/DC CONVERTERS 20W DC/DC Converters INPUT VOLTAGE 18-75VDC 18-75VDC 18-75VDC 18-75VDC 18-75VDC Notes 1 2 3 4 5 6 7 8 9 Single and dual output 2 For the most current data and application support visit www.artesyn.com/powergroup/products.htm OUTPUT VOLTAGE 3.3V 5.0V 12V 5V 12V OVERVOLTAGE PROTECTION (2,3) 3.7V 6.67V 14.25V 6.67V 14.25V OUTPUT CURRENT (MAX.) 6.0A 4.0A 1.66A 2.0A ea. 0.83A ea. TYPICAL EFFICIENCY 80% 83% 83% 84% 84% PIN CONNECTIONS PIN NUMBER 1 2 3 4 5 6 CAUTION: Hazardous internal voltages and high temperatures. Ensure that unit is not user accessible. MODEL NUMBER CXA20-48S3V3 CXA20-48S05 CXA20-48S12 CXA20-48D05 CXA20-48D12 Negative output voltage deviation when either load is changed. For TVS/Zener specifications please see Application Note 107. On dual output models, OVP protection is on positive outputs only. With respect to minimum input voltage. With one external 4F capacitor across the input. Unit provides basic insulation up to the 75VDC maximum input voltage. Maximum continuous output power not to exceed 20 Watts. User must provide 2A HRC (recommended) in line fuse in order to comply with safety approvals. Download Application Note 107 and the full data sheet from our website. SINGLE OUTPUT + Input - Input No Pin Remote On/Off No Pin + Output - Output Trim DUAL OUTPUT + Input - Input No Pin Remote On/Off + Output Common - Output Trim 7 8 MAX. TEMPERATURES FOR FULL RATED OUTPUT CURRENT MODEL 48S3V3 48S05 48S12 48D05 48D12 FULL Vin RANGE 50C 55C 50C 55C 50C Vin <60VDC 50C 60C 55C 60C 60C EXTERNAL OUTPUT TRIMMING All models can be externally trimmed by 10% using either method shown below. See Application Note 107 for details. + Output - Output TRIM DOWN TRIM UP Trim 100 Rated Output Current 80 75% 60 40 20 0 -40C -20C 0 20 40 60 80 100 Ambient Temperature Derating Curve Output Current vs Temperature S3V3 Natural Convection (<0.1m/s airflow) Please consult our website for the following items: Application Note Longform Data Sheet www.artesyn.com File Name: CXA20.PDF Rev: 11 Jan 2002 CXA20 Series DC/DC CONVERTERS 20W DC/DC Converters 0.02 0.004 (0.50 0.1) Single and dual output 3 For the most current data and application support visit www.artesyn.com/powergroup/products.htm 0.413 (10.50) MAX. OPEN FRAME HEIGHT O0.040 0.002 (O1.02 0.05) 0.14 0.02 (3.60 0.5) STAND-OFFS 4 PLACES 2.00 0.02 (50.80 0.5) 1.80 (45.72) 5 0.70 (17.78) 0.20 (5.08) 0.10 (2.54) 6 1 0.60 (15.24) 2 0.50 (12.70) 1.60 0.02 (40.64 0.5) BOTTOM VIEW 7 0.30 (7.62) 0.70 (17.78) 4 8 ALL DIMENSIONS IN INCHES (mm) General tolerance 0.010 (0.25) unless otherwise specified Data Sheet (c) Artesyn Technologies(R) 2002 The information and specifications contained in this data sheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising from printing errors or inaccuracies. Specifications are subject to change without notice. No rights under any patent accompany the sale of any such product(s) or information contained herein. Please consult our website for the following items: Application Note Longform Data Sheet www.artesyn.com File Name: CXA20.PDF Rev: 11 Jan 2002 |
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