Embedded Power for Business-Critical Continuity Rev.03.08.07 bxb50s 1 of 4 BXB50 Series Single output Total Power: 33 - 50W Input Voltage: 18 - 36VDC 36 - 75VDC of Outputs: Single The BXB50 Series are high power density dc-dc converters packaged in the industry standard footprint (2.40 x 2.28 x 0.50 Special Features inches) to give designers optimum choices when specifying for Industry standard footprint MTBF >1.4 million hours both new and replacement designs. Suitable for a wide range of (Bellcore 332) applications in nearly any industry, the BXB50 was particularly Input voltage to ETS300-132-2 Adjustable output voltage designed with communication and distributed power applications No minimum load required in mind. Using Bellcore 332, the MTBF is greater than 1,400,000 Separate case ground pin 2:1 input range for battery hours. Aluminum baseplate technology with four threaded M3 powered applications inserts makes heatsink attachment and optimum thermal Undervoltage lockout (UVLO) management easy. The BXB50 series are approved to IEC950 by UL, VDE and CSA safety approvals UL, CSA and VDE. Available RoHS compliant 2 year warranty Safety VDE0805/EN60950/IEC950 File No. 10401-3336-0205 Licence No. 40012035 UL60950 File No. E136005 CSA C22.2 No. 950 File No. LR41062CEmbedded Power for Business-Critical Continuity Rev.03.08.07 bxb50s Specifications 2 of 4 All specifications are typical at nominal input, full load at 25C unless otherwise stated. OUTPUT SPECIFICATIONS INPUT SPECIFICATIONS CONTINUED Voltage adjustability 60% to 110% Undervoltage lockout 24 Vin: power up 17 V 24 Vin: power down 16 V Set point accuracy 1.0% 48 Vin: power up 34 V 48 Vin: power down 32.5 V Line regulation Low line to high line 0.05% Start-up time Power up 20 ms Load regulation Full load to min. load 0.10% (See Note 8) Remote ON/OFF 20 ms Minimum load 0% EMC CHARACTERISTICS Overshoot At turn-on and turn-off None Conducted emissions Bellcore 1089 Level A (See Note 3) FCC part 15 Level A Undershoot None EN55022, CISPR22 Level A Ripple and noise 3.3 V and 5 V 75 mV pk-pk, GENERAL SPECIFICATIONS (5 Hz to 20 MHz) 20 mV rms (See Note 1) 12 V and 15 V 100 mV pk-pk, Efficiency See table 30 mV rms Isolation voltage Input/case 1500 Vdc Input/output 1500 Vdc Temperature coefficient 0.01%/C Output/case 1500 Vdc Transient response 2.0% max. deviation Switching frequency Fixed 500 kHz typ. (See Note 2) 170 s recovery to within 1.0% Approvals and VDE0805, EN60950, IEC950 standards (See Note 5) UL1950, CSA C22.2 No. 950 Remote sense 0.5 Vdc transmission line drop compensation Case material Aluminum baseplate with plastic case INPUT SPECIFICATIONS Material flammability UL94V-0 Input voltage range 24Vin nominal 18-36 Vdc Weight 110 g (3.88 oz) 48Vin nominal 36-75 Vdc MTBF Bellcore 332 1,400,000 hours Input current No load 100 mA max. MIL-HDBK-217F 580,000 hours Remote OFF 20 mA max. 40 C, 100% load min. Input current (max.) 48 V models 3.5 A max. Io max. ENVIRONMENTAL SPECIFICATIONS (See Note 4) and Vin = 0 to 75 V Thermal performance Operating case temp. -40 C to +100 C Input reflected ripple (See Note 6) 5 mA pk-pk Non-operating -55 C to +125 C Active low remote ON/OFF (See Note 7) Altitude Operating 10,000 feet max. Logic compatibility Open collector ref to -input Non-operating 40,000 feet max. ON 1.2 Vdc max. OFF Open circuit Vibration 5-500 Hz 2.4 G rms (approx.)