Embedded Power for Business-Critical Continuity Rev.03.08.07 bxb75s 1 of 4 BXB75 Series Single output Total Power: 50 - 75W Input Voltage: 36 - 75VDC of Outputs: Single The BXB75 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 BXB75 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 BXB75 series is approved to IEC950 by UL, UL, VDE and CSA safety approvals CSA and VDE. Available RoHS compliant 2 year warranty Safety VDE0805/EN60950/IEC950 File No. 10401-3336-0205 UL1950 File No. E136005 CSA C22.2 No. 950 File No. LR41062CEmbedded Power for Business-Critical Continuity Rev.03.08.07 bxb75s Specifications 2 of 4 All specifications are typical at nominal input, full load at 25C unless otherwise stated. OUTPUT SPECIFICATIONS INPUT SPECIFICATIONS (continued) Undervoltage lockout 48 Vin: power up 34 V Voltage adjustability 60% to 110% 48 Vin: power down 32.5 V Set point accuracy 1.0% Start-up time Power up 20 ms (See Note 8) Remote ON/OFF 20 ms Line regulation Low line to high line 0.05% Load regulation Full load to min. load 0.10% EMC CHARACTERISTICS Conducted emissions Bellcore 1089 Level A Minimum load 0% (See Note 3) FCC part 15 Level A Overshoot At turn-on and turn-off None EN55022, CISPR22 Level A Undershoot None GENERAL SPECIFICATIONS Ripple and noise 3.3 V and 5 V 75 mV pk-pk, Efficiency See table (5 Hz to 20 MHz) 20 mV rms Isolation voltage Input/case 1500 Vdc (See Note 1) 12 V 100 mV pk-pk, Input/output 1500 Vdc 30 mV rms Output/case 1500 Vdc Temperature coefficient 0.01%/C Switching frequency Fixed 500 kHz typ. Transient response 2.0% max. deviation Approvals and VDE0805, EN60950, IEC950 (See Note 2) 170 s recovery standards (See Note 5) UL1950, CSA C22.2 No. 950 to within 1.0% Case material Aluminum baseplate Remote sense 0.5 Vdc transmission with plastic case line drop compensation Material flammability UL94V-0 INPUT SPECIFICATIONS Weight 110 g (3.88 oz) Input voltage range 48 Vin nominal 36-75 Vdc MTBF Bellcore 332 1,400,000 hours min. Input current No load 100 mA max. MIL-HDBK-217F 580,000 hours min. Remote OFF 20 mA max. 40 C, 100% full load Input current (max.) 3.5 A max. Io max. ENVIRONMENTAL SPECIFICATIONS (See Note 4) and Vin = 0-75 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.)