EXB50 SERIES Single output * High efficiency topology, 91% typical on EXB50-48S05 * Industry standard footprint * Wide operating temperature -40C to +70C (natural convection) * 60% to 110% output trim * No minimum load * Overvoltage and overtemperature protection * Remote sense compensation * Remote on/off The EXB50 series of 50 Watt single-output isolated DC/DC converters is specifically designed to meet the power needs of low-voltage silicon. Housed in an open-frame package with an industry-standard footprint, these latestgeneration converters offer efficiencies as high as 91%. The series comprises three 24V-input models with 5V, 3.3V and 2V outputs, and six 48V-input models with 12V, 5V, 3.3V 2.5V, 2.0V and 1.8V outputs. All models feature a wide input range, trimmable output voltage and a 10A current rating (except the 12V). Remote sense and remote on/off facilities are included as standard, and the converters are comprehensively protected against over-current, over-voltage and over-temperature conditions. [ 2 YEAR WARRANTY ] SPECIFICATION All specifications are typical at nominal input, full load at 25C unless otherwise stated OUTPUT SPECIFICATIONS INPUT SPECIFICATIONS CONTD. Voltage adjustability 60% to 110% Set point accuracy 24Vin: 24Vin 48Vin: 48Vin: Start-up time (See Note 7) Power up Remote ON/OFF 1.5% max. Line regulation Low line to high line 0.1% max. Load regulation Full load to min. load 0.2% max. Total error band 3.0% Minimum load Overshoot Undervoltage lockout 0% At turn-on and turn-off None Undershoot None Ripple and noise (See Note 1) 5Hz to 20MHz Transient response (See Notes 2 and 8) 24V models 48V models 100mV pk-pk 20mV rms 3.0% peak deviation 2.0% peak deviation, 200s recovery to within total error band power up power down power up power down 17Vmax 15Vmin 33.2Vmax 30.9Vmin 30ms 25ms EMC CHARACTERISTICS Conducted emissions EN55022 (See EN55022 (See Radiated emissions EN55022 Immunity: (See Note 13) ESD air EN61000-4-2 ESD contact EN61000-4-2 Radiated field enclosure EN61000-4-3 Conducted (DC power) EN61000-4-6 Conducted (signal) EN61000-4-6 Note 3) Note 3) 8kV (NP), 15kV (RP) 6kV (NP), 8kV (RP) 10V/m (NP) 10V (NP) 10V (NP) GENERAL SPECIFICATIONS Efficiency Remote sense (See Note 9) 10% o/p voltage change INPUT SPECIFICATIONS Input voltage range (See Note 14) Input current Input current (max.) (See Note 4) 24Vin nominal 48Vin nominal 100V 100ms Transient 24V: 24V: 48V: 48V: No load Remote OFF No load Remote OFF 24V models 48V models 18 to 36VDC 36 to 75VDC 85mA 20mA 60mA 10mA 3.25A and 1.7A and max. max. max. max. max. @ Io max. Vin = 18 to 36V max. @ Io max. Vin = 36 to 75V Input reflected ripple (See Note 6) 24V models 48V models Remote ON/OFF Logic compatibility ON OFF (See Note 15) Open collector ref to -input Open circuit or >2VDC <1.2VDC PAGE 1 20mA (pk-pk) typ. 50mA (pk-pk) typ. Level A Level B Level A See table Basic insulation Input/output Switching frequency Fixed Approvals and standards (See Note 5) Material flammability 1500VDC 300kHz typ. IEC60950/EN60950, UL/cUL1950 CSA C22.2 No. 950 UL94V-0 Weight MTBF 50g (1.77oz) MIL-HDBK-217F @ 25C 100% load ground benign 270,000 hours ENVIRONMENTAL SPECIFICATIONS Thermal performance (See Notes 11 & 12) Operating ambient -40C to +70C temperature (natural convection) Non-operating -55C to +125C ETS 300 019-2-3 Altitude (See Note 10) Classes T3.1 to T3.5 3,000 metres 10,000 metres Derate max. output current by 20% Derate max. output current by 50% DC/DC CONVERTERS | 20-50W DC/DC 20 to 50 Watt High efficiency DC/DC converters OUTPUT POWER (MAX.) INPUT VOLTAGE OVP OUTPUT VOLTAGE OUTPUT CURRENT (MIN.) OUTPUT CURRENT (MAX.) EFFICIENCY (TYP.) LINE LOAD MODEL NUMBER 20W 18-36VDC 2.4VDC 2.0V 0A 10A 86.5% 0.1% 0.2% EXB50-24S2V0 33W 18-36VDC 3.9VDC 3.3V 0A 10A 89% 0.1% 0.2% EXB50-24S3V3 50W 18-36VDC 6.0VDC 5.0V 0A 10A 90% 0.1% 0.2% EXB50-24S05 18W 36-75VDC 2.15VDC 1.8V 0A 10A 85.7% 0.1% 0.2% EXB50-48S1V8(15) 20W 36-75VDC 2.45VDC 2.0V 0A 10A 87.5% 0.1% 0.2% EXB50-48S2V0(15) 25W 36-75VDC 2.95VDC 2.5V 0A 10A 87.5% 0.1% 0.2% EXB50-48S2V5(15) 33W 36-75VDC 4.00VDC 3.3V 0A 10A 90.0% 0.1% 0.2% EXB50-48S3V3(15) 50W 36-75VDC 6.15VDC 5.0V 0A 10A 91.0% 0.1% 0.2% EXB50-48S05(15) 50W 36-75VDC 14.2VDC 12.0V 0A 4.2A 90.0% 0.1% 0.2% EXB50-48S12(15) REGULATION Notes No Pin 3 Remote ON/OFF 4 + Vin + Sense 7 Trim 8 - Sense 9 - Vout TELECOM SPECIFICATION Central office interface A OPEN-FRAME HEIGHT O0.040 0.02 (O1.02 0.05) 1 EXTERNAL OUTPUT TRIMMING O0.0790.002 (O2.030.05) 9 8 3 Output can be externally trimmed by using the method shown below. ETS300-132-2, input voltage and current requirements STAND-OFFS 4 PLACES 1.00 (25.40) + Vout 6 1.40 (35.56) 5 120C hot spot temperature with automatic recovery BOTTOM VIEW 4 7 6 2.40 0.02 (60.96 0.5) - Vin 2 0.20 (5.08) 1 Non-latching clamp Thermal protection 0.02 (0.50) 0.1380.02 (3.500.5) FUNCTION 2.00 (50.80) PIN NO Overvoltage protection 1.40 (35.56) PIN CONNECTIONS Continuous 1.00 (25.40) 15 Short circuit protection 0.70 (17.78) 6 7 8 9 10 11 12 13 14 PROTECTION 0.160.02 (4.100.5) 5 0.40 (10.16) 4 0.430.02 (10.900.5) 3 CAUTION: Hazardous internal voltages and high temperatures. Ensure that unit is not user accessible. Measured as per recommended set-up. 150mV pk-pk for EXB50-48S12 di/dt = 0.1A/s, Vin = 24/48VDC, Tc = 25C, load change = 0.5 lo max. to 0.75 lo max. and 0.75 lo max. to 0.5 lo max. The EXB50 meets level A and level B conducted emissions only with external components connected before the input pins to the converter. Recommended input fusing is a 6.3A HRC 200V rated fuse on the 24V and 3.15A HRC 200V rated fuse on the 48V. This product is only for inclusion by professional installers within other equipment and must not be operated as a stand alone product. Simulated source impedance of 12H. 12H inductor in series with +Vin. Start-up into resistive load. EXB50-24S2V0 model has 5.0% max. deviation and 300s recovery. Maximum output deviation is 10% inclusive of trim. Contact factory for operation at higher altitude. See Application Note 113 for Derating Curves. Wide operating temperature on the EXB50-24S05 is -40C to + 60C Input transient (48V) ETS300 132-2 ETR283 Applies to 3V3 version only. Please add suffix 'R03' to the model number e.g. EXB50-48S3V3R03. This is also active low remote on/off. Active low remote on/off available. Add suffix '-R' to part number. 0.50 (12.70) 1 2 5 + Sense TRIM UP Trim 1.90 (48.26) 2.28 0.02 (57.91 0.5) - Sense ALL DIMENSIONS IN INCHES (mm) 0.19 (4.83) General Tolerance 0.010 (0.25) Unless Otherwise Specified Data Sheet (c) Artesyn Technologies(R) 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 Long Form Data Sheet http://www.artesyn.com PAGE 2 DS_EXB50S_20020412.PDF TRIM DOWN RT1 or RT2