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CXA20 Datasheet(PDF) 1 Page - Emerson Network Power |
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CXA20 Datasheet(HTML) 1 Page - Emerson Network Power |
1 / 3 page DC-DC CONVERTERS 20 W DC-DC Converters 1 2 YEAR WARRANTY CXA20 Series Single and dual output • 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. 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 8 kV (NP), 15 kV (RP) ESD contact EN61000-4-2 6 kV (NP), 8 kV (RP) EFT DC power EN61000-4-4 2 kV (NP), 4 kV (LFS) EFT signal EN61000-4-4 1 kV (NP), 2 kV (LFS) Radiated field enclosure EN61000-4-3 10 V/m (NP) Surges indoor signal EN61000-4-5 500 V (RP) Conducted (dc power) EN61000-4-6 10 V (NP) Conducted (signal) EN61000-4-6 10 V (NP) Input transients ETS 300 132-2, ETR 283 GENERAL SPECIFICATIONS Efficiency See table Overtemp. shutdown 120 ˚C Isolation voltage Input/output test voltage 1500 Vdc Switching frequency Fixed 400 kHz Approvals and standards EN60950 (See Notes 6,7,8) UL1950 File No. E136005 Material flammability UL94V-0 Weight 26 g (0.92 oz) MTBF MIL-HDBK-217F 3,485,000 hours (Representative model Parts stress method 48S05J @ 48 Vin) 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 75 mV pk-pk max. 20 MHz bandwidth S12, D12 100 mV pk-pk max. All models 20 mV rms max. Temperature coefficient ±0.02%/°C Overvoltage protection See Application Note 107 Short circuit protection Hiccup Continuous Short <20 m Ω automatic recovery Transient response 25% load step ±2.0% max. dev., 300 µs 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 48 Vin nominal 18-75 Vdc Input fuse HRC recommended 2.0 A Max. input rise 48 V ETS300-132 5 V/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 >2 Vdc OFF <1.2 Vdc SPECIFICATIONS File Name: cxa20.pdf Rev (02): 09 Dec 2005 |
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