BXB50 SERIES Single output * * * * * * * * * The BXB50 Series are high power density DC/DC converters packaged in the industry standard footprint (2.40 x 2.28 x 0.50 inches) to give designers optimum choices when specifying for both new and replacement designs. Suitable for a wide range of applications in nearly any industry, the BXB50 was particularly designed with communication and distributed power applications in mind. Using Bellcore 332, the MTBF is greater than 1,400,000 hours. Aluminum baseplate technology with four threaded M3 inserts makes heatsink attachment and optimum thermal management easy. The BXB50 series are approved to IEC950 by UL, CSA and VDE. [ 2 YEAR WARRANTY ] SPECIFICATION Industry standard footprint MTBF >1.4 million hours (Bellcore 332) Input voltage to ETS300-132-2 Adjustable output voltage No minimum load required Separate case ground pin 2:1 input range for battery powered applications Undervoltage lockout (UVLO) UL, VDE and CSA safety approvals All specifications are typical at nominal input, full load at 25C unless otherwise stated OUTPUT SPECIFICATIONS INPUT SPECIFICATIONS CONTINUED Voltage adjustability 60% to 110% Set point accuracy Low line to high line 0.05% Load regulation Full load to min. load 0.10% Minimum load 0% At turn-on and turn-off Undershoot Ripple and noise (5Hz to 20MHz) (See Note 1) 24Vin: 24Vin: 48Vin: 48Vin: Start-up time (See Note 8) Power up Remote ON/OFF 1.0% Line regulation Overshoot Undervoltage lockout None 12V and 15V Temperature coefficient 75mV pk-pk, 20mV rms 100mV pk-pk, 30mV rms Conducted emissions (See Note 3) 2.0% max. deviation 170s recovery to within 1.0% Remote sense 0.5VDC transmission line drop compensation 17V 16V 34V 32.5V 20ms 20ms Bellcore 1089 FCC part 15 EN55022, CISPR22 Level A Level A Level A GENERAL SPECIFICATIONS Efficiency See table Isolation voltage Input/case Input/output Output/case Switching frequency Fixed 0.01%/C Transient response (See Note 2) up down up down EMC CHARACTERISTICS None 3.3V and 5V power power power power Approvals and standards (See Note 5) Case material 1500VDC 1500VDC 1500VDC 500kHz typ. VDE0805, EN60950, IEC950 UL1950, CSA C22.2 No. 950 Aluminum baseplate with plastic case INPUT SPECIFICATIONS Input voltage range 24Vin nominal 48Vin nominal 18 to 36VDC 36 to 75VDC Input current No load Remote OFF 100mA max. 20mA max. Input current (max.) (See Note 4) 48V models 3.5A max. @ Io max. and Vin = 0 to 75V Input reflected ripple (See Note 6) 5mA pk-pk Active low remote ON/OFF Logic compatibility ON OFF PAGE 146 (See Note 7) Open collector ref to -input 1.2VDC max. Open circuit Material flammability UL94V-0 Weight MTBF 110g (3.88oz) Bellcore 332 MIL-HDBK-217F @ 40C, 100% load 1,400,000 hours 580,000 hours min. ENVIRONMENTAL SPECIFICATIONS Thermal performance Operating case temp. -40C to +100C Non-operating -55C to +125C Altitude Operating Non-operating Vibration 5Hz to 500Hz 10,000 feet max. 40,000 feet max. 2.4G rms (approx.) DC/DC CONVERTERS | 33-50W DC/DC 33 to 50 Watt Wide input DC/DC converters OUTPUT POWER (MAX.) INPUT VOLTAGE OVP OUTPUT VOLTAGE OUTPUT CURRENT (MIN.) OUTPUT CURRENT (MAX.) EFFICIENCY (TYP.) LINE LOAD MODEL NUMBER (7) 33W 18-36VDC 4.3VDC 3.3V 0A 10A 76% 0.05% 0.10% BXB50-24S3V3FLT 50W 18-36VDC 6.5VDC 5V 0A 10A 81% 0.05% 0.10% BXB50-24S05FLT 50W 18-36VDC 14.5VDC 12V 0A 4.16A 83% 0.05% 0.10% BXB50-24S12FLT 50W 18-36VDC 17.5VDC 15V 0A 3.33A 83% 0.05% 0.10% BXB50-24S15FLT 33W 36-75VDC 4.3VDC 3.3V 0A 10A 77% 0.05% 0.10% BXB50-48S3V3FLT 50W 36-75VDC 6.5VDC 5V 0A 10A 82% 0.05% 0.10% BXB50-48S05FLT 50W 36-75VDC 14.5VDC 12V 0A 4.16A 84% 0.05% 0.10% BXB50-48S12FLT 50W 36-75VDC 17.5VDC 15V 0A 3.33A 84% 0.05% 0.10% BXB50-48S15FLT Notes 1 2 3 4 5 6 7 8 REGULATION PROTECTION Measured with 10F tantalum capacitor and 1F ceramic capacitor across output. di/dt = 0.1A/1s, Vin = 48VDC, Tc = 25C, load change = 0.5 lo max. to 0.75 lo max. and 0.75 lo max. to 0.5 lo max. Units should be characterised within systems. External components required. Input fusing is recommended based on surge current and maximum input current. 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. Active high remote on/off option is available (standard product is active low), designate with the suffix `FHT' e.g. BXB50-48S05FHT. Consult factory for further details and options. Start-up into resistive load. Short circuit protection Continuous, automatic recovery Overvoltage protection Non-latching Undervoltage protection Non-latching Thermal protection 110C baseplate, automatic recovery TELECOM SPECIFICATION Central office interface A ETS300-132-2 EXTERNAL OUTPUT TRIMMING 5 Output can be externally trimmed by using the method shown below. International Safety Standard Approvals 8 VDE0805/EN60950/IEC950 File No. 10401-3336-1095 UL1950 File No. E136005 TRIM UP CSA C22.2 No. 950 File No. LR41062C RT1 OR RT2 7 TRIM DOWN 6 PIN CONNECTIONS PIN NUMBER FUNCTION 1 + Vin VIEW SHOWN PIN SIDE UP 2 Remote ON/OFF 3 Case 4 - Vin 7 Trim 8 + Sense 9 + Vout Vo (-) VI (-) CASE +SEN TRIM -SEN - Sense 0.400 (10.16) 1.400 (35.56) 0.700 (17.77) 0.400 (10.16) 1.000 (25.40) 2.000 (50.80) 2.40 (60.96) Max. 1.400 (35.56) Vo(+) 6 1.000 (25.40) ON/OFF - Vout 0.200 (5.08) Min. Length for all Input and Output Pins 0.190 (4.83) 0.010 (0.25) 0.500 (12.69) 0.010 (0.25) VI(+) 5 1.90 (48.26) 7 x O.040 (1.02) 0.002 (0.05) 0.190 (4.83) 0.010 (0.25) 2.28 (57.91) Max. 2 x O.080 (2.03) 0.002 (0.05) 4 x M3 x 0.5 Through 0.500 (12.70) ALL DIMENSIONS IN INCHES (mm) Tolerance : x.xx 0.02in. (0.51mm) x.xxx 0.010in. (0.254mm) Please consult our website for the following items: Application Note SimscopeTM http://www.artesyn.com PAGE 147 DS_BXB50_20000101.PDF Data Sheet (c) Artesyn Technologies(R) 2000 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.