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
Special Features
• 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
• 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. LR41062C
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.
Embedded Power for
Business-Critical Continuity
Rev.03.08.07
bxb75s
2 of 4
Specifications
All specifications are typical at nominal input, full load at 25°C unless otherwise stated.
OUTPUT SPECIFICATIONS
INPUT SPECIFICATIONS (continued)
Voltage adjustability
60% to 110%
Set point accuracy
±1.0%
Undervoltage lockout
48 Vin: power up
48 Vin: power down
34 V
32.5 V
Power up
Remote ON/OFF
20 ms
20 ms
Line regulation
Low line to high line
±0.05%
Start-up time
(See Note 8)
Load regulation
Full load to min. load
±0.10%
EMC CHARACTERISTICS
Minimum load
Overshoot
0%
At turn-on and turn-off
Undershoot
Ripple and noise
(5 Hz to 20 MHz)
(See Note 1)
None
None
3.3 V and 5 V
75 mV pk-pk,
20 mV rms
100 mV pk-pk,
30 mV rms
12 V
Temperature coefficient
±0.01%/°C
Transient response
(See Note 2)
±2.0% max. deviation
170 μs recovery
to within ±1.0%
Remote sense
0.5 Vdc transmission
line drop compensation
Bellcore 1089
FCC part 15
EN55022, CISPR22
Efficiency
See table
Isolation voltage
Input/case
Input/output
Output/case
Switching frequency
Fixed
Approvals and
standards (See Note 5)
1500 Vdc
1500 Vdc
1500 Vdc
500 kHz typ.
VDE0805, EN60950, IEC950
UL1950, CSA C22.2 No. 950
Case material
Aluminum baseplate
with plastic case
UL94V-0
Weight
Input voltage range
48 Vin nominal
Input current
No load
Remote OFF
Input current (max.)
(See Note 4)
36-75 Vdc
MTBF
100 mA max.
20 mA max.
3.5 A max. @ Io max.
and Vin = 0-75 V
(See Note 6)
5 mA pk-pk
Active low remote ON/OFF (See Note 7)
Logic compatibility
ON
OFF
Open collector ref to -input
1.2 Vdc max.
Open circuit
Level A
Level A
Level A
GENERAL SPECIFICATIONS
Material flammability
INPUT SPECIFICATIONS
Input reflected ripple
Conducted emissions
(See Note 3)
110 g (3.88 oz)
Bellcore 332
1,400,000 hours min.
MIL-HDBK-217F
580,000 hours min.
@ 40 °C, 100% full load
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating case temp.
Non-operating
-40 °C to +100 °C
-55 °C to +125 °C
Altitude
Operating
Non-operating
10,000 feet max.
40,000 feet max.
Vibration
5-500 Hz
2.4 G rms (approx.)
Embedded Power for
Business-Critical Continuity
Rev.03.08.07
bxb75s
3 of 4
Specifications Contd.
OUTPUT
POWER
(MAX.)
INPUT
VOLTAGE
OVP
OUTPUT
VOLTAGE
OUTPUT
CURRENT
(MIN.)
OUTPUT
CURRENT
(MAX.)
EFFICIENCY
(TYP.)
LINE
LOAD
MODEL
NUMBER (7, 9,10)
50 W
36-75 Vdc
75 W
36-75 Vdc
4.3 Vdc
3.3 V
0A
15 A
79%
±0.05%
±0.1%
BXB75-48S3V3FLTJ
6.5 Vdc
5V
0A
15 A
83%
±0.05%
±0.1%
BXB75-48S05FLTJ
75 W
36-75 Vdc
14.5 Vdc
12 V
0A
6.25 A
84%
±0.05%
±0.1%
BXB75-48S12FLTJ
REGULATION
Notes
PROTECTION
1
Short circuit
Continuous, automatic recovery
Overvoltage
Non-latching
Undervoltage
Non-latching
Measured with 10 μF tantalum capacitor and 1 μF ceramic capacitor across
output.
2 di/dt = 0.1 A/1 μs, Vin = 48 Vdc, Tc = 25 °C, load change = 0.5 lo max. to 0.75 lo
max. and 0.75 lo max. to 0.5 lo max.
3 Units should be characterised within systems. External components required.
4 Input fusing is recommended based on surge current and maximum input
current.
5 This product is only for inclusion by professional installers within other
equipment and must not be operated as a stand alone product.
6 Simulated source impedance of 12 μH. 12 μH inductor in series with +Vin.
7 Active high remote on/off option is available (standard product is active low),
designate with the suffix ‘FHT’ e.g. BXB75-48S05FHTJ. Consult factory for
further details and options.
8 Start-up into resistive load.
9 The ‘J’ suffix indicates that these parts are Pb-free (RoHS 6/6) compliant.
TSE RoHS 5/6 (non Pb-free) compliant versions may be available on special
request, please contact your local sales representative for details.
10 NOTICE: Some models do not support all options. Please contact your local
Artesyn representative or use the on-line model number search tool at
http://www.artesyn.com/powergroup/products.htm to find a suitable
alternative.
Thermal
110 °C baseplate,
automatic recovery
TELECOM SPECIFICATION
Central office interface A
ETS300-132-2
EXTERNAL OUTPUT TRIMMING
PIN CONNECTIONS
PIN
NUMBER
FUNCTION
1
+ Vin
2
Remote ON/OFF
3
Case
4
- Vin
5
- Vout
6
- Sense
7
Trim
8
+ Sense
9
+ Vout
Output can be externally
trimmed by using the
method shown.
8
TRIM
UP
RT1
OR
RT2
7
TRIM
DOWN
6
Embedded Power for
Business-Critical Continuity
Rev.03.08.07
bxb75s
4 of 4
Americas
VIEW SHOWN
PIN SIDE UP
1.90
(48.26)
0.200 (5.08) Min.
Length for all Input
and Output Pins
0.190 (4.83) ± 0.010 (0.25)
VI(+)
Vo (-)
+SEN TRIM -SEN
1.400 (35.56)
ON/OFF
0.400 (10.16)
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(+)
1.000 (25.40)
CASE
VI (-)
0.500 (12.69) ± 0.010 (0.25)
5810 Van Allen Way
Carlsbad, CA 92008
USA
Telephone: +1 760 930 4600
Facsimile: +1 760 930 0698
7 x Ø.040 (1.02) ±0.002 (0.05)
0.190 (4.83) ±0.010 (0.25)
2.28 (57.91) Max.
2 x Ø.080 (2.03) ± 0.002 (0.05)
4 x M3 x 0.5 Through
ALL DIMENSIONS IN INCHES (mm)
Tolerance : x.xx ±0.02in. (0.51mm)
x.xxx ±0.010in. (0.254mm)
0.500 (12.70)
Europe (UK)
Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX
United Kingdom
Telephone: +44 (0) 1384 842 211
Facsimile: +44 (0) 1384 843 355
Asia (HK)
16th - 17th Floors, Lu Plaza
2 Wing Yip Street, Kwun Tong
Kowloon, Hong Kong
Telephone: +852 2176 3333
Facsimile: +852 2176 3888
For global contact, visit:
www.powerconversion.com
technicalsupport@powerconversion.com
While every precaution has been taken to ensure
accuracy and completeness in this literature, Emerson
Network Power assumes no responsibility, and disclaims
all liability for damages resulting from use of this
information or for any errors or omissions.
Emerson Network Power.
The global leader in enabling
business-critical continuity.
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©2007 Emerson Electric Co.
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