CXA20 ARTESYN | Alldatasheet

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DC/DC CONVERTERS 20W DC/DC Converters 1

2 YEAR WARRANTY

  • 4:1 input voltage range
  • No minimum load on singles
  • 6A on 3.3V output (@ 48Vin) at 50˚C 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 high- performance, 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. All specifications are typical at nominal input, full load at 25°C unless otherwise stated EMC CHARACTERISTICS ETS 300 386-1 table 5 Conducted emissions EN55022, ext. cap. (Note 5) Level A EN55022, external filter, Level B VDE0878, 48V models Radiated emissions EN55022-B See App. Note 107 Immunity: ESD air EN61000-4-2 8kV (NP), 15kV (RP) ESD contact EN61000-4-2 6kV (NP), 8kV (RP) EFT DC power EN61000-4-4 2kV (NP), 4kV (LFS) EFT signal EN61000-4-4 1kV (NP), 2kV (LFS) Radiated field enclosure EN61000-4-3 10V/m (NP) Surges indoor signal EN61000-4-5 500V (RP) Conducted (DC power) EN61000-4-6 10V (NP) Conducted (signal) EN61000-4-6 10V (NP) Input transients ETS 300 132-2, ETR 283 GENERAL SPECIFICATIONS Efficiency See table Overtemp. shutdown 120˚C Isolation voltage Input/output test voltage 1500VDC Switching frequency Fixed 400kHz Approvals and standards EN60950 (See Notes 6,7,8) UL1950 File No. E136005 Material flammability UL94V-0 Weight 26g (0.92 oz) MTBF MIL-HDBK-217F 400,000 hours (Representative model Parts stress method 48S05 @ 48Vin) Ground Benign @ 25°C ENVIRONMENTAL SPECIFICATIONS Thermal performance Operating ambient -40°C to +60°C, temperature (See Note 9) Non-operating -55°C to +125°C ETS 300 019-2-3 Classes T3.1, 3.2, 3.3, 3.5 Air temperature Low: IEC 68-2-1 -40°C High: IEC 68-2-2 +60°C Change: IEC 68-2-14 -40°C to +60°C Relative humidity IEC 68-2-56 10% to 100% RH IEC 68-2-30 Condensation OUTPUT SPECIFICATIONS Voltage accuracy ±1.0% Line regulation Singles/dual positives ±0.1% (LL to HL) Dual negatives ±0.1% Load regulation Full load to minimum load (not incl. cross reg.) S3V3 ±0.2% Singles/dual positives ±0.1% Dual negatives ±0.1% Minimum load Singles None Duals (for imbalanced loads) 10% Ripple and noise S3V3, S05, D05 75mV pk-pk max. 20MHz bandwidth S12, D12 100mV pk-pk max. All models 20mV rms max. Temperature coefficient ±0.02%/°C Overvoltage protection See Application Note 107 Short circuit protection Hiccup Continuous Short <20mΩ automatic recovery Transient response 25% load step ±2.0% max. dev., 300µs recovery to within total error band Load cross regulation 10% load to full load, ±7.0% (See Note 1) either output INPUT SPECIFICATIONS Input voltage range 48Vin nominal 18 to 75VDC Input fuse HRC recommended 2.0A Max. input rise 48V ETS300-132 5V/ms and fall time UVLO turn ON voltage (See Note 4) 92% UVLO turn OFF voltage (See Note 4) 86% Remote ON/OFF Logic compatibility CMOS/TTL/Open Collector ON Open circuit or >2VDC OFF <1.2VDC SPECIFICATIONS File Name: CXA20.PDF Rev: 11 Jan 2002

For the most current data and application support visit www.artesyn.com/powergroup/products.htm Notes 1 Negative output voltage deviation when either load is changed. 2 For TVS/Zener specifications please see Application Note 107. 3 On dual output models, OVP protection is on positive outputs only. 4 With respect to minimum input voltage. 5 With one external 4µF capacitor across the input. 6 Unit provides basic insulation up to the 75VDC maximum input voltage. 7 Maximum continuous output power not to exceed 20 Watts.

8 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. CXA20 Series Single and dual output DC/DC CONVERTERS 20W DC/DC Converters 2 Please consult our website for the following items: 4 Application Note 4 Longform Data Sheet www.artesyn.com File Name: CXA20.PDF Rev: 11 Jan 2002 CAUTION: Hazardous internal voltages and high temperatures. Ensure that unit is not user accessible. INPUT OUTPUT OVERVOLTAGE OUTPUT TYPICAL MODEL VOLTAGE VOLTAGE PROTECTION (2,3) CURRENT (MAX.) EFFICIENCY NUMBER 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 PIN CONNECTIONS PIN NUMBER SINGLE OUTPUT DUAL OUTPUT 1 + Input + Input 2 – Input - Input

3 No Pin No Pin

4 Remote On/Off Remote On/Off

5 No Pin + Output

8 Trim Trim

Derating Curve Output Current vs Temperature S3V3 Natural Convection (<0.1m/s airflow) -40˚C 100 Ambient Temperature Rated Output Current 75% MAX. TEMPERATURES FOR FULL RATED OUTPUT CURRENT MODEL FULL Vin RANGE Vin <60VDC 48S3V3 50˚C 50˚C 48S05 55˚C 60˚C 48S12 50˚C 55˚C 48D05 55˚C 60˚C 48D12 50˚C 60˚C TRIM DOWN + Output TRIM UP Trim - Output EXTERNAL OUTPUT TRIMMING All models can be externally trimmed by ±10% using either method shown below. See Application Note 107 for details.

4 PLACES Ø0.040 –0.002 (Ø1.02 –0.05) 2.00 –0.02 (50.80 –0.5) 1.80 (45.72) ALL DIMENSIONS IN INCHES (mm) General tolerance –0.010 (–0.25) unless otherwise specified 0.02 –0.004 (0.50 –0.1) 1.60 –0.02 (40.64 –0.5) 0.70 (17.78) 0.20 (5.08) 0.10 (2.54) 0.30 (7.62) 0.70 (17.78) 0.50 (12.70) 0.60 (15.24) 0.14 –0.02 (3.60 –0.5) 0.413 (10.50) MAX. OPEN FRAME HEIGHT BOTTOM VIEW Data Sheet © Artesyn Technologies® 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. For the most current data and application support visit www.artesyn.com/powergroup/products.htm CXA20 Series Single and dual output DC/DC CONVERTERS 20W DC/DC Converters 3 Please consult our website for the following items: 4 Application Note 4 Longform Data Sheet www.artesyn.com File Name: CXA20.PDF Rev: 11 Jan 2002