CXA20 Series Single and dual output Ws1 • 4:1 input voltage range • No minimum load on singles • 6 A on 3.3 V output (@ 48 Vin) at 50 ˚C in still air • Wide operating temperature with overtemperature protection • ±10% output voltage trim • Remote On/Off control • Overvoltage protection • Available RoHS complaint The CXA20 is a new 20 W 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 Vdc to 75 Vdc, 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 high-performance, cost-effective power supply. The CXA20 is available in output voltages of 3.3 V, 5 V, 12 V, ±5 V and ±12 V. The 3.3 V version delivering up to 6 A is fully rated to 20 W. Typical efficiency for the CXA20 is 83%. 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 25 °C unless otherwise stated SPECIFICATIONS OUTPUT SPECIFICATIONS EMC CHARACTERISTICS ETS 300 386-1 table 5 Voltage accuracy ±1.0% Conducted emissions EN55022, ext. cap. (Note 5) Level A EN55022, external filter, Level B Line regulation Singles/dual positives ±0.1% VDE0878, 48V models (LL to HL) Dual negatives ±0.1% Radiated emissions EN55022-B See App. Note 107 Load regulation Full load to minimum load Immunity: (not incl. cross reg.) S3V3 ±0.2% ESD air EN61000-4-2 8 kV (NP), 15 kV (RP) Singles/dual positives ±0.1% ESD contact EN61000-4-2 6 kV (NP), 8 kV (RP) Dual negatives ±0.1% EFT DC power EN61000-4-4 2 kV (NP), 4 kV (LFS) EFT signal EN61000-4-4 1 kV (NP), 2 kV (LFS) Minimum load Singles None Radiated field enclosure EN61000-4-3 10 V/m (NP) Duals (for imbalanced loads) 10% Surges indoor signal EN61000-4-5 500 V (RP) Conducted (dc power) EN61000-4-6 10 V (NP) Ripple and noise S3V3, S05, D05 75 mV pk-pk max. Conducted (signal) EN61000-4-6 10 V (NP) 20 MHz bandwidth S12, D12 100 mV pk-pk max. Input transients ETS 300 132-2, ETR 283 All models 20 mV rms max. GENERAL SPECIFICATIONS Temperature coefficient ±0.02%/°C Efficiency See table Overvoltage protection See Application Note 107 Overtemp. shutdown 120 ˚C Short circuit protection Hiccup Continuous Isolation voltage Input/output test voltage 1500 Vdc Short <20 mΩ automatic recovery Switching frequency Fixed 400 kHz Transient response 25% load step ±2.0% max. dev., Approvals and standards EN60950 300 µs recovery to (See Notes 6,7,8) UL1950 File No. E136005 within total error band Material flammability UL94V-0 Load cross regulation 10% load to full load, ±7.0% Weight 26 g (0.92 oz) (See Note 1) either output MTBF MIL-HDBK-217F 3,485,000 hours (Representative model Parts stress method INPUT SPECIFICATIONS 48S05J @ 48 Vin) Ground Benign @ 25 °C Input voltage range 48 Vin nominal 18-75 Vdc ENVIRONMENTAL SPECIFICATIONS Input fuse HRC recommended 2.0 A Thermal performance Operating ambient -40 °C to +60 °C, temperature (See Note 9) Max. input rise 48 V ETS300-132 5 V/ms Non-operating -55 °C to +125 °C and fall time ETS 300 019-2-3 Classes T3.1, 3.2, 3.3, 3.5 UVLO turn ON voltage (See Note 4) 92% Air temperature Low: IEC 68-2-1 -40 °C UVLO turn OFF voltage (See Note 4) 86% High: IEC 68-2-2 +60 °C Change: IEC 68-2-14 -40 °C to +60 °C Remote ON/OFF Logic compatibility CMOS/TTL/Open Collector Relative humidity IEC 68-2-56 10% to 100% RH ON Open circuit or >2 Vdc IEC 68-2-30 Condensation OFF <1.2 Vdc File Name: cxa20.pdf Rev (02): 09 Dec 2005 ConverterDC-DC20CONVERTERSDC-DC CXA20 Series Single and dual output Ws2 tiswwwsgr INPUT OUTPUT OVERVOLTAGE OUTPUT TYPICAL MODEL (2,3) (10,11) VOLTAGE VOLTAGE PROTECTION CURRENT (MAX.) EFFICIENCY NUMBER 18-75 Vdc 3.3 V 3.7 V 6 A 80% CXA20-48S3V3J 18-75 Vdc 5 V 6.67 V 4 A 83% CXA20-48S05J 18-75 Vdc 12 V 14.25 V 1.66 A 83% CXA20-48S12J 18-75 Vdc ±5 V 6.67 V 2 A ea. 84% CXA20-48D05J 18-75 Vdc ±12 V 14.25 V 0.83 A ea. 84% CXA20-48D12J N No ot te es s PIN CONNECTIONS 1 Negative output voltage deviation when either load is changed. PIN NUMBER SINGLE OUTPUT DUAL OUTPUT 2 For TVS/Zener specifications please see Application Note 107. 3 On dual output models, OVP protection is on positive outputs only. 1 + Input + Input 4 With respect to minimum input voltage. 5 With one external 4 µF capacitor across the input. 2 – Input - Input 6 Unit provides basic insulation up to the 75 Vdc maximum input voltage. 7 Maximum continuous output power not to exceed 20 Watts. 3 No Pin No Pin 8 User must provide 2 A HRC (recommended) in line fuse in order to comply 4 Remote On/Off Remote On/Off with safety approvals. 9 Download Application Note 107 and the full data sheet from our website. 5 No Pin + Output 10 The ‘J’ suffix indicates that these parts are Pb-free (RoHS 6/6) compliant. TSE RoHS 5/6 (non Pb-free) compliant versions may be available on 6 + Output Common special request, please contact your local sales representative for details. 11 NOTICE: Some models do not support all options. Please contact your 7 - Output - Output local Artesyn representative or use the on-line model number search tool at 8 Trim Trim http://www.artesyn.com/powergroup/products.htm to find a suitable alternative. MAX. TEMPERATURES FOR FULL RATED OUTPUT CURRENT EXTERNAL OUTPUT TRIMMING All models can be externally trimmed by ±10% using either MODEL FULL Vin RANGE Vin <60 Vdc method shown below. See Application Note 107 for details. 48S3V3J 50 ˚C 50 ˚C + Output 48S05J 55 ˚C 60 ˚C 48S12J 50 ˚C 55 ˚C - Output TRIM 48D05J 55 ˚C 60 ˚C DOWN TRIM 48D12J 50 ˚C 60 ˚C UP Trim 100 CAUTION: Hazardous internal voltages and high temperatures. Ensure that unit is not user accessible. 80 75% 60 40 20 0 -40˚C -20˚C 0˚ 20˚ 40˚ 60˚ 80˚ 100˚ Ambient Temperature International Safety Standard Approvals Derating Curve Output Current vs Temperature S3V3J UL/cUL CAN/CSA 22.2 No. 60950-00 : UL 60950 Natural Convection (<0.1 m/s airflow) File No. E174104 VDE Certificate No.112836. File No. 10401-3336-0154 CB Report and Certificate to IEC60950, Licence No. 121914 File Name: cxa20.pdf Rev (02): 09 Dec 2005 Rated Output Current oup/product.htm.artesyn.com/powervisupportapplicationanddatacurrentmosttheFor ConverterDC-DC20CONVERTERSDC-DC CXA20 Series Single and dual output Ws3 tiswwwsgr 0.02 ±0.004 (0.50 ±0.1) 0.413 (10.50) MAX. OPEN FRAME HEIGHT STAND-OFFS 4 PLACES Ø0.040 ±0.002 (Ø1.02 ±0.05) 0.14 ±0.02 (3.60 ±0.5) 2.00 ±0.02 (50.80 ±0.5) 1.80 (45.72) 5 0.10 0.70 (2.54) 0.20 (17.78) 0.50 (5.08) (12.70) 6 1.60 ±0.02 1 0.30 (40.64 ±0.5) (7.62) BOTTOM 7 0.60 2 0.70 VIEW (15.24) (17.78) 8 4 ALL DIMENSIONS IN INCHES (mm) General tolerance ±0.010 (±0.25) unless otherwise specified Datasheet © Artesyn Technologies® 2005 The information and specifications contained in this datasheet 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 (02): 09 Dec 2005 oup/product.htm.artesyn.com/powervisupportapplicationanddatacurrentmosttheFor ConverterDC-DC20CONVERTERSDC-DC