CXA20 SERIES NEW Product Single and dual output * * * * * * * * 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 ] SPECIFICATION 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 Pin compatible with NFC15 and NFC20 series All specifications are typical at nominal input, full load at 25C unless otherwise stated OUTPUT SPECIFICATIONS ELECTROMAGNETIC COMPATIBILITY SPECIFICATIONS Voltage accuracy 1.0% Line regulation (LL to HL) Singles/dual positives Dual negatives 0.1% 0.1% Load regulation (not incl. cross reg.) Full load to minimum load S3V3 Singles/dual positives Dual negatives Minimum load Singles Duals (for imbalanced loads) Ripple and noise 20MHz bandwidth S3V3, S05, D05 S12, D12 All models 0.2% 0.1% 0.1% None 10% 75mV pk-pk max. 100mV pk-pk max. 20mV rms max. Temperature coefficient 0.02%/C Overvoltage protection See Application Note 107 Short circuit protection Short <20m Transient response Load cross regulation (See Note 1) Hiccup Continuous automatic recovery 25% load step 2.0% max. dev., 300s recovery to within total error band 10% load to full load, either output 7.0% Input voltage range 48Vin nominal Input fuse HRC recommended Max. input rise and fall time 48V ETS300-132 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 GENERAL SPECIFICATIONS Efficiency See table Overtemp. shutdown 120C Isolation voltage Input/output test voltage Switching frequency Fixed 18 to 75VDC EN60950 UL1950 File No. E136005 Material flammability 2.0A 5V/ms MTBF (Representative model 48S05 @ 48Vin) UL94V-0 26g (0.92 oz) MIL-HDBK-217F 400,000 hours Parts stress method Ground Benign @ 25C ENVIRONMENTAL SPECIFICATIONS 92% 86% Operating ambient temperature Non-operating ETS 300 019-2-3 CMOS/TTL/Open Collector Open circuit or >2VDC <1.2VDC 1500VDC 400kHz Approvals and standards (See Notes 6,7,8) Thermal performance UVLO turn ON voltage (See Note 4) UVLO turn OFF voltage (See Note 4) PAGE 118 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 Weight INPUT SPECIFICATIONS Remote ON/OFF Logic compatibility ON OFF ETS 300 386-1 table 5 Conducted emissions -40C to +60C, (See Note 9) -55C to +125C Classes T3.1, 3.2, 3.3, 3.5 Air temperature Low: IEC 68-2-1 High: IEC 68-2-2 Change: IEC 68-2-14 Relative humidity IEC 68-2-56 IEC 68-2-30 -40C +60C -40C to +60C 10% to 100% RH Condensation DC/DC CONVERTERS | 20W DC/DC 20 Watt DC/DC converters INPUT VOLTAGE OUTPUT VOLTAGE OVERVOLTAGE PROTECTION (2,3) OUTPUT CURRENT (MAX.) TYPICAL EFFICIENCY MODEL NUMBER (10) 18-75VDC 3.3V 3.7V 6.0A 80% CXA20-48S3V3 18-75VDC 5.0V 6.67V 4.0A 83% CXA20-48S05 18-75VDC 12V 14.25V 1.66A 83% CXA20-48S12 18-75VDC 5V 6.67V 2.0A ea. 84% CXA20-48D05 18-75VDC 12V 14.25V 0.83A ea. 84% CXA20-48D12 Notes 1 2 3 4 5 6 7 8 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. 9 Download Application Note 107 and the full data sheet from our website. 10 Active high remote on/off is available. Standard product is active low. Designate with the suffix 'H', e.g. CXA20-48S05H. PIN CONNECTIONS PIN NUMBER SINGLE OUTPUT DUAL OUTPUT 1 + Input + Input 2 - Input - Input CAUTION: Hazardous internal voltages and high temperatures. Ensure that unit is not user accessible. 3 No Pin No Pin 4 Remote On/Off Remote On/Off 5 No Pin + Output 6 + Output Common 7 - Output - Output 8 Trim Trim EXTERNAL OUTPUT TRIMMING MAX. TEMPERATURES FOR FULL RATED OUTPUT CURRENT MODEL FULL Vin RANGE Vin <60VDC 48S3V3 50C 50C 48S05 55C 60C 48S12 50C 55C 48D05 55C 60C 48D12 50C 60C All models can be externally trimmed by 10% using either method shown below. See Application Note 107 for details. + Output 5 TRIM DOWN - Output TRIM UP Trim 0.02 0.004 (0.50 0.1) 0.413 (10.50) MAX. Rated Output Current 100 OPEN FRAME HEIGHT STAND-OFFS 4 PLACES 80 O0.040 0.004 (O1.02 0.1) 75% 0.14 0.02 (3.60 0.5) 60 40 2.00 0.02 (50.80 0.5) 20 1.80 (45.72) 0 -20C 0 20 40 60 80 100 Ambient Temperature 5 0.70 (17.78) Derating Curve Output Current vs Temperature S3V3 Natural Convection (<0.1m/s airflow) 1.60 0.02 (40.64 0.5) 0.10 (2.54) 0.20 (5.08) 0.50 (12.70) 6 1 0.60 (15.24) 2 BOTTOM VIEW 7 new product -40C 0.30 (7.62) 0.70 (17.78) 8 4 ALL DIMENSIONS IN INCHES (mm) Data Sheet (c) Artesyn Technologies(R) 2000 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 Full Data Sheet http://www.artesyn.com PAGE 119 DS_CXA20_20000101.PDF General tolerance 0.010 (0.25) unless otherwise specified