BXA40 Series Single output DC/DC CONVERTERS 40W Wide Input DC/DC Converters 1 • Pin-compatible with NFC40 Series • Meets telecom power supply interface standard ETS300-132-2 • EN60950, CSA C22.2 No. 950 and UL1950 safety approvals • EN61000-4-2, -3, -4, -5, -6 immunity compliant • Fixed frequency operation at 350kHz typ. • MTBF in excess of 500,000 hours • Basic insulation system with 1500V isolation • Remote sense on low voltage logic outputs • Output voltage trim The BXA40 Series providing up to 40 Watts, has been conceived as an applications specific range of DC/DC converters, specifically addressing telecommunications, industrial electronics, test equipment, mobile telecommunications and distributed power applications. The series offers two wide input voltage ranges, 18-36VDC and 36-75VDC, and is available with single outputs from 2.9V to 12V. The BXA40 series is designed to meet ETSI telecoms interface standards ETS300-132-2. Together with internal filtering, safety approval to IEC950 and basic insulation, the 48VDC models are ideal for telecommunications applications. The 24V models are particularly suited to industrial and test equipment applications, featuring EN61000-4-2, -3, -4, -5 and -6 immunity compliance. Other features include low output ripple, overvoltage protection, indefinite short circuit protection, remote enable and remote sense. 2 YEAR WARRANTY SPECIFICATIONS All specifications are typical at nominal input, full load at 25°C unless otherwise stated OUTPUT SPECIFICATIONS EMC CHARACTERISTICS Voltage adjustability ±10% Conducted emissions Radiated emissions ESD air ESD contact Surge Fast transients Radiated immunity Conducted immunity Line regulation Low line to high line ±0.3% Load regulation Full load to no load ±1.0% Ripple and noise (20MHz bandwidth) 2.9V and 3.3V 5V 12V All models 30mV pk-pk 50mV pk-pk 100mV pk-pk 20mV rms Temperature coefficient EN55022, FCC part 15, (See Notes 4 and 13) EN55022, FCC part 15 EN61000-4-2, level 3 EN61000-4-2, level 4 EN61000-4-5, level 3 EN61000-4-4, level 3 EN61000-4-3, level 3 EN61000-4-6, level 3 ±0.02%/°C GENERAL SPECIFICATIONS Overvoltage protection (See Note 9) 135% Vout Efficiency Short circuit protection (See Note 10) Continuous Isolation voltage Transient response 25% to 100% load (See Note 11) Input/output Input/case Switching frequency Fixed 4.0% ±1.0% ≤5V, ±2.0% ≥12V Voltage accuracy Remote sense (See Note 8) Compensated line drops up to 0.5V on 5V models Compensated line drop up to 300mV on 2.9V and 3.3V models INPUT SPECIFICATIONS Input voltage range Start-up time Remote ON/OFF Logic compatibility ON OFF Perf. Perf. Perf. Perf. Perf. Perf. 18 to 36VDC 36 to 75VDC (See Note 5) 48V 5V/ms ETS300-132 1500VDC 1500VDC 350kHz typ. Approvals and standards (pending) EN60950, UL1950 CSA C22.2 No. 950 Case material Aluminum substrate with plastic case Material flammability MTBF UL94V-0 85g (3.0oz) MIL-HDBK-217F Size 500,000 hours 2.2 x 2.2 x 0.5 inches 55.9 x 55.9 x 12.7 mm ENVIRONMENTAL SPECIFICATIONS Thermal performance 30ms typ. CMOS/TTL Open-circuit <1VDC Level A criteria 1 criteria 1 criteria 1 criteria 1 criteria 1 criteria 1 See table Weight 24Vin nominal 48Vin nominal Reverse voltage protection Max. input rise and fall time Level B Thermal impedance (See Note 6) Baseplate operating temperature Non-operating -40°C to +105°C -55°C to +105°C No air flow, no heatsink No air flow, with heatsink 8.5°C/W 7.2°C/W File Name: BXA40S.PDF Rev: 02 Oct 2002 BXA40 Series Single output DC/DC CONVERTERS 40W Wide Input DC/DC Converters 2 For the most current data and application support visit www.artesyn.com/powergroup/products.htm INPUT VOLTAGE OUTPUT VOLTAGE OUTPUT CURRENT (MAX.) INPUT CURRENT 18-36VDC 3.3V 7A 70mA 75% 0.3% 1.0% BXA40-24S3V3-SM 18-36VDC 5V 8A 40mA 81% 0.3% 1.0% BXA40-24S05-M 36-75VDC 2.9V 6.9A 40mA 77% 0.3% 1.0% BXA40-48S2V9-SM 36-75VDC 5V 8.0A 30mA 82% 0.3% 1.0% BXA40-48S05-M 36-75VDC 12V 3.3A 30mA 87% 0.3% 1.0% (1) TYPICAL EFFICIENCY REGULATION LINE (2) LOAD (3) MODEL NUMBER (12) (8) (8) (8) (8) BXA40-48S12-M Notes 1 2 3 4 5 6 7 8 Nominal line, at no load. Low line to high line at full load. Full load to no-load at nominal line. For conducted noise operation of the BXA40 to VDE0871, VDE0878 and EN55022 level B, see BXA40 Design Note 101. Reverse voltage protection can be implemented by putting a slow blow fuse on the positive input rail. Rate the fuse at 200VDC,1.5A for 48VDC inputs and 100V, 4.5A for 24VDC input units. The maximum operating ambient temperature, without derating depends on internal power dissipation and hence efficiency and cooling method. Download BXA40 Design Note 101 which provides detailed thermal calculations and design-in hints from the Artesyn website. Do not exceed a dv/dt rate of 100V per second at the trim pin input if output current is less than 0.4% lo max. Remote sense is offered as standard on the 2.9V and 3.3V products. The BXA40-24S05 and BXA40-48S05 come with remote sense as an option. Remote sense design is designated by the suffix ‘-S’ e.g. BXA40-48S05SM (for units with metric inserts), BXA40-48S05-S (for units with imperial inserts). For models without remote sense option, pin 5 and pin 6 are absent. PIN CONNECTIONS 9 10 11 12 Overvoltage protection is 118% on 3.3V output model. For 2.9V output, no short circuit protection above 90°C baseplate temp. Transient response, 25% to 100% load, 10% for 2.9V and 3.3V models. Units with the suffix ‘-M’ at the end of the model number are offered as standard with metric threaded inserts (M3). To order units with imperial threaded inserts (4-40 UNC) please remove the suffix ‘-M’ from the model number. These inserts are used for bolting the unit to a PCB and/or fixing heatsinks. 13 An external filter capacitor is necessary for safe operation of the 24V input models. It is also suggested that an external filter capacitor be used on the 48V input models. A 4µF (or greater) film capacitor such as: ITW Paktron Capstick series, part number 405K100CS4 4µF/100V is recommended, if filtering is not used. See BXA40 Design Note 101. 14 A top mounted heatsink kit is available for the BXA40. The heatsink may be oriented parallel to or perpendicular to the direction of the pins, thus providing optimum flexibility for cooling requirements. The order number for the top mounted heatsink kit with metric screws is ‘NFC40-HTSK-T’. The order number for the top mounted heatsink kit with imperial screws is ‘NFC40-HTSK-I’. See Design Note 101 for ambient temperature derating calculations. EXTERNAL OUTPUT TRIMMING PIN NUMBER SINGLE OUTPUT 1 + Input 2 – Input 3 Control 4 No Connection Output can be externally trimmed by ±10% using either method shown below. 7 7 5 - Sense (8) 6 + Sense (8) TRIM DOWN 9 TRIM UP 8 7 + Output 8 Common 9 Trim Please consult our website for the following items: ✔ Design Note RT1 9 OR RT2 10KΩ TRIMPOT 8 www.artesyn.com File Name: BXA40S.PDF Rev: 02 Oct 2002 BXA40 Series Single output DC/DC CONVERTERS 40W Wide Input DC/DC Converters 3 For the most current data and application support visit www.artesyn.com/powergroup/products.htm 1.90 (48.26) 0.15 (3.82) 1.25 (31.76) 0.019 (0.50) 0.60 (15.24) 0.2 (5.08) 3 2 1 0.043 ±0.003(1.02 ±0.05) Diameter Typ. Metric (Suffix '-M'): M3 Tap Thru. 4 places or Imperial (No '-M' suffix) 440 UNC (Optional) 1.80 (45.72) 1.90 (48.26) 2.20 ±0.02 (55.90 ±0.50) 0.256 (6.50) Diameter Stand-off (4 Places) 9 0.50 (12.70) 8 7 6 0.15 (3.90) 0.3 (7.62) 5 0.1 (2.54) 4 0.2 (5.08) 0.05 (1.27) 0.15 (3.82) 0.6 (15.24) 0.8 0.5 (20.32) (12.70) 2.20 ±0.02 (55.90 ±0.50) BOTTOM VIEW ALL DIMENSIONS IN INCHES (mm) TOLERANCE : ± 0.004 (0.1) (Unless otherwise specified) International Safety Standard Approvals VDE0805/EN60950/IEC950 File No. 14501-3336-7009 Licence No. 6296 UL1950 File No. E174104 CSA C22.2 No. 950 File No. LR41062C 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. Please consult our website for the following items: ✔ Design Note www.artesyn.com File Name: BXA40S.PDF Rev: 02 Oct 2002