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BXB75 SERIES
Single output
* * * * * * * * * 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
[ 2 YEAR WARRANTY ]
The BXB75 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 BXB75 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 BXB75 series is approved to IEC950 by UL, CSA and VDE.
SPECIFICATION
OUTPUT SPECIFICATIONS Voltage adjustability Set point accuracy Line regulation Load regulation Minimum load Overshoot Undershoot Ripple and noise (5Hz to 20MHz) (See Note 1) Temperature coefficient Transient response (See Note 2) Remote sense INPUT SPECIFICATIONS Input voltage range Input current Input current (max.) (See Note 4) Input reflected ripple
All specifications are typical at nominal input, full load at 25C unless otherwise stated INPUT SPECIFICATIONS CONTINUED 60% to 110% 1.0% Undervoltage lockout 24Vin: 24Vin: 48Vin: 48Vin: power power power power up down up down 17V 16V 34V 32.5V 20ms 20ms
Low line to high line Full load to min. load
0.05% 0.10% 0% Start-up time (See Note 8) Power up Remote ON/OFF
EMC CHARACTERISTICS Conducted emissions (See Note 3) Bellcore 1089 FCC part 15 EN55022, CISPR22 Level A Level A Level A
At turn-on and turn-off
None None
3.3V and 5V 12V and 15V
75mV pk-pk, 20mV rms 100mV pk-pk, 30mV rms 0.01%/C 2.0% max. deviation 170s recovery to within 1.0% 0.5VDC transmission line drop compensation
GENERAL SPECIFICATIONS Efficiency Isolation voltage Input/case Input/output Output/case Fixed See table 1500VDC 1500VDC 1500VDC 500kHz typ. VDE0805, EN60950, IEC950 UL1950, CSA C22.2 No. 950 Aluminum baseplate with plastic case UL94V-0 110g (3.88oz) Bellcore 332 1,400,000 hours MIL-HDBK-217F 580,000 hours @ 40C, 100% full load min.
Switching frequency Approvals and standards (See Note 5) Case material
24Vin nominal 48Vin nominal No load Remote OFF 48V models (See Note 6)
18 to 36VDC 36 to 75VDC 100mA max. 20mA max. 3.5A max. @ Io max. and Vin = 0 to 75V 5mA pk-pk
Material flammability Weight MTBF
ENVIRONMENTAL SPECIFICATIONS Thermal performance Altitude Vibration Operating case temp. -40C to +100C Non-operating -55C to +125C Operating Non-operating 5Hz to 500Hz 10,000 feet max. 40,000 feet max. 2.4G rms (approx.)
Active low remote ON/OFF Logic compatibility ON OFF
(See Note 7) Open collector ref to -input 1.2VDC max. Open circuit
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DC/DC CONVERTERS
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50-75W DC/DC
50 to 75 Watt Wide input DC/DC converters
OUTPUT POWER (MAX.) 50W 75W 75W 75W 50W 75W 75W 75W Notes
1 2 3 4 5 6 7 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. BXB75-48S05FHT. Consult factory for further details and options. Start-up into resistive load.
INPUT VOLTAGE 18-36VDC 18-36VDC 18-36VDC 18-36VDC 36-75VDC 36-75VDC 36-75VDC 36-75VDC
OVP 4.3VDC 6.5VDC 14.5VDC 17.5VDC 4.3VDC 6.5VDC 14.5VDC 17.5VDC
OUTPUT VOLTAGE 3.3V 5V 12V 15V 3.3V 5V 12V 15V
OUTPUT CURRENT (MIN.) 0A 0A 0A 0A 0A 0A 0A 0A
OUTPUT CURRENT (MAX.) 15A 15A 6.25A 5.0A 15A 15A 6.25A 5.0A
EFFICIENCY (TYP.) 78% 82% 83% 84% 79% 83% 84% 85%
REGULATION LINE 0.05% 0.05% 0.05% 0.05% 0.05% 0.05% 0.05% 0.05% LOAD 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1% 0.1%
MODEL NUMBER (7) BXB75-24S3V3FLT BXB75-24S05FLT BXB75-24S12FLT BXB75-24S15FLT BXB75-48S3V3FLT BXB75-48S05FLT BXB75-48S12FLT BXB75-48S15FLT
PROTECTION Short circuit protection Overvoltage protection Undervoltage protection Thermal protection Continuous, automatic recovery Non-latching Non-latching 110C baseplate, automatic recovery
TELECOM SPECIFICATIONS Central office interface A EXTERNAL OUTPUT TRIMMING Output can be externally trimmed by using the method shown below. ETS300-132-2
8
International Safety Standard Approvals
VDE0805/EN60950/IEC950 File No. 10401-3336-1095 UL1950 File No. E136005
5
8
TRIM UP 7 RT1 OR RT2 TRIM DOWN 6
CSA C22.2 No. 950 File No. LR41062C
PIN CONNECTIONS PIN NUMBER 1 2 3 4 5 6 7 8 9 FUNCTION + Vin Remote ON/OFF Case - Vin - Vout - Sense Trim + Sense + Vout
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) 0.500 (12.69) 0.010 (0.25)
CASE VI (-)
VIEW SHOWN PIN SIDE UP
1.90 (48.26) 0.190 (4.83) 0.010 (0.25)
0.200 (5.08) Min. Length for all Input and Output Pins
+SEN TRIM -SEN
1.000 (25.40) 0.400 (10.16) 1.400 (35.56)
Vo (-)
0.700 (17.77) 0.400 (10.16) 1.000 (25.40)
2.000 (50.80)
2.40 (60.96) Max.
ON/OFF
1.400 (35.56)
ALL DIMENSIONS IN INCHES (mm)
Tolerance : x.xx 0.02in. (0.51mm) x.xxx 0.010in. (0.254mm)
DS_BXB75S_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.
Please consult our website for the following items: http://www.artesyn.com
Application Note
Vo(+)
VI(+)
SimscopeTM
PAGE 151

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