EXB50 Dual Series Dual positive output DC/DC CONVERTERS 50W High Efficiency DC/DC Converters 1 • Two independently regulated positive outputs • Each output offers ultra-wide output voltage trim range (0.8V to 3.6V for EXB50-48D3V3-1V8, 1.5V to 5.25V for EXB50-48D05-3V3) • High efficiency topology, 89% typical • Approved to IEC60950, UL/cUL1950 • Operating ambient temperature of -40°C to +70°C (natural convection) • No minimum load on either output • Complies with ETS 300 019-1-3/2-3 and ETS 300 386-1 The EXB50 Dual is a 50W independently regulated dual output DC/DC converter specifically designed to meet the power needs of low voltage silicon. Housed in an open frame package with an industry standard 1/2 brick footprint, the EXB50 Dual can deliver up to 8.5A from either output, and up to 11A in total, at temperatures of up to 70ºC under natural convection. With some forced air and/or reduced ambient temperatures, the EXB50 can deliver up to 8.5A from either output, and up to 17A in total. The converter is primarily intended for the networking, telecoms and wireless markets, where small size, lower output voltages with higher currents, low profile and high efficiency are all key demands. Product features include wide output trim and remote on/off. Overvoltage, short circuit and over-temperature protection combines to make the EXB50 Dual a very robust and flexible product. TÜV 2 YEAR WARRANTY SPECIFICATIONS All specifications are typical at Vin = 48V, Io1 = 5A, Io2 = 5A, Tamb = 25°C unless otherwise stated OUTPUT SPECIFICATIONS Voltage adjustability EMC CHARACTERISTICS EXB50-48D3V3-1V8 EXB50-48D05-3V3 0.8V to 3.6V 1.5V to 5.25V Voltage accuracy Both outputs Line regulation Low line to high line Low line to high line ±0.5% max. Load regulation Full load to no load Minimum load Both outputs 0% Ripple and noise 20MHz bandwidth Both outputs 150mV pk-pk max. 30mV rms max. Transient response peak dev. settling time 3A to 5A (1A/10µs) and back Short circuit protection EXB50-48D3V3-1V8 EXB50-48D05-3V3 Vout1 ±0.5% Vout2 ±0.5% ±0.5% 150mV 400µs 17A rms 15A rms INPUT SPECIFICATIONS ETS 300 386-1 table 5 Conducted emissions (See Note 3) 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 Input/output 1500VDC Input fuse 48V (See Note 2) 4A slow blow HRC EXB50-48D3V3-1V8 EXB50-48D05-3V3 Switching frequency (fixed) Input current No load Remote OFF 100mA max. 4mA max. Approvals and standards UVLO turn ON voltage UVLO turn OFF voltage All inputs All inputs Active low remote ON/OFF Logic compatibility ON OFF (See Note 7) 250kHz 300kHz IEC60950 UL/cUL1950 Material Flammability UL94V-0 Weight MTBF Open collector ref. to -input 0.4VDC max. Open circuit voltage or >3.2VDC 89% typ. Basic insulation 36 to 75VDC Open collector ref. to -input Open circuit voltage or >3.2VDC <0.4VDC 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 Efficiency 48Vin nominal Active high remote ON/OFF Logic compatibility ON OFF (See Note 7) Level A Level B Level A GENERAL SPECIFICATIONS Input voltage range 34V typ. 33V typ. EN55022 with external filter EN55022 with external filter EN55022 42g (1.48oz) MIL-HDBK-217 177,362 hours ENVIRONMENTAL SPECIFICATIONS Thermal performance (See Notes 4 and 5) ETS 300 019-2-3 Air temperature Relative humidity Operating ambient temperature Non-operating -40°C to +100°C, see curves -40°C to +120°C Classes T3.1 to T3.5 Low: IEC 68-2-1 -40°C High: IEC 68-2-2 +70°C Change: IEC 68-2-14 -40°C to +70°C IEC 68-2-56 10% to 100% RH IEC 68-2-30 Condensation File Name: EXB50D.PDF Rev: 10 June 2002 EXB50 Dual Series Dual positive output DC/DC CONVERTERS 50W High Efficiency DC/DC Converters 2 For the most current data and application support visit www.artesyn.com/powergroup/products.htm INPUT VOLTAGE OUTPUT VOLTAGE 1 2 OUTPUT CURRENT 1 2 (8) OVP 2 3 4 5 6 7 8 2 TYPICAL EFFICIENCY MODEL NUMBER (7) 36-75VDC 3.3V 1.8V 8.5A 8.5A 4.12V 2.34V 86.4% EXB50-48D3V3-1V8 36-75VDC 5V 3.3V 7.5A 7.5A 6.25V 4.12V 89% EXB50-48D05-3V3 Notes 1 (1) 1 PROTECTION Latching OVP response time is 2ms (typ.). OVP latch is reset by toggling the control input, or by cycling the input voltage. User must provide recommended fuses in order to comply with safety approvals. Meets both level A and level B conducted emissions only with external components connected before the input pins to the converter. Maximum temperature on hotspots not to exceed 110ºC. See Application Note 127 on Artesyn Technologies website www.artesyn.com. See the long form data sheet for derating curves. For stable operation connect an external output capacitor of at least 100µF to each output. Recommended capacity AVX TPS series (e.g. TPSD107*010#0100) or equivalents. Active low remote ON/OFF, is available. Standard product is active high. Designate with the suffix ‘-R’ e.g. EXB50-48D05-3V3-R. Maximum total current from the module is 15A for EXB50-48D05-3V3 and 17A for EXB50-48D3V3-1V8 with airflow. Short circuit protection Continuous Overvoltage protection Latching Thermal protection 125°C with automatic recovery TELECOM SPECIFICATION Central office interface A ETS300-132-2 input voltage and current requirements CAUTION: Hazardous internal voltages and high temperatures. Ensure that unit is not user accessible. PIN CONNECTIONS Max open-frame converter height FUNCTION + Vin 5 Vo1 Trim 6 Vo1 Return 7 Vo1+ 8 Vo2 Trim 9 Vo2 Return 10 Vo2+ Ø0.040 ±0.002 (Ø1.02 ±0.05) 9 Places Minimum clearance from bottom of converter to lowest component All dimensions in inches (mm) General tolerance ±0.01in (±0.25mm) except where specified otherwise 2.280±0.02 (57.91±0.5) Vo2+ Vin- 1.000 (25.40) + OUT 1.400 (35.56) EXTERNAL OUTPUT TRIMMING 2.400±0.02 (60.96±0.5) Vo2Trim2 0.400 (10.16) Remote ON/OFF 4 0.300 (7.62) 3 0.600 (15.24) 1.000 (25.40) 1.300 (33.02) 1.600 (40.64) No Pin 0.015 (0.37) Min 0.138 (3.50) - Vin 2 0.500 (12.70) 1 0.394 (10.00) Max PIN NUMBER Vo1+ Control TRIM Vo1Vin+ Trim1 - OUT + OUT TRIM 1.900 (48.26) - OUT TRIM DOWN TRIM UP BOTTOM VIEW TRIM 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: ✔ Application Note ✔ Longform Data Sheet www.artesyn.com File Name: EXB50D.PDF Rev: 10 June 2002