Embedded Power for
Business-Critical Continuity
BXB75 Series
Single output
Total Power:
50 - 75W
Input Voltage: 36 - 75VDC
# of Outputs: Single
Rev.03.08.07
bxb75s
1 of 4
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
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.
Safety
VDE0805/EN60950/IEC950
File No. 10401-3336-0205
UL1950 File No. E136005
CSA C22.2 No. 950
File No. LR41062C
Embedded Power for
Business-Critical Continuity
Specifications
All specifications are typical at nominal input, full load at 25
°
C unless otherwise stated.
Rev.03.08.07
bxb75s
2 of 4
OUTPUT SPECIFICATIONS
Voltage adjustability
Set point accuracy
Line regulation
Load regulation
Minimum load
Overshoot
Undershoot
Ripple and noise
(5 Hz to 20 MHz)
(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
(See Note 6)
48 Vin nominal
No load
Remote OFF
36-75 Vdc
100 mA max.
20 mA max.
3.5 A max. @ Io max.
and Vin = 0-75 V
5 mA pk-pk
Open collector ref to -input
1.2 Vdc max.
Open circuit
3.3 V and 5 V
12 V
At turn-on and turn-off
Low line to high line
Full load to min. load
60% to 110%
±1.0%
±0.05%
±0.10%
0%
None
None
75 mV pk-pk,
20 mV rms
100 mV pk-pk,
30 mV rms
±0.01%/°C
±2.0% max. deviation
170 μs recovery
to within ±1.0%
0.5 Vdc transmission
line drop compensation
INPUT SPECIFICATIONS (continued)
Undervoltage lockout
Start-up time
(See Note 8)
EMC CHARACTERISTICS
Conducted emissions
(See Note 3)
GENERAL SPECIFICATIONS
Efficiency
Isolation voltage
Input/case
Input/output
Output/case
Fixed
See table
1500 Vdc
1500 Vdc
1500 Vdc
500 kHz typ.
VDE0805, EN60950, IEC950
UL1950, CSA C22.2 No. 950
Aluminum baseplate
with plastic case
UL94V-0
110 g (3.88 oz)
Bellcore 332
1,400,000 hours min.
MIL-HDBK-217F
580,000 hours min.
@ 40 °C, 100% full load
Bellcore 1089
FCC part 15
EN55022, CISPR22
Level A
Level A
Level A
48 Vin: power up
48 Vin: power down
Power up
Remote ON/OFF
34 V
32.5 V
20 ms
20 ms
Switching frequency
Approvals and
standards (See Note 5)
Case material
Material flammability
Weight
MTBF
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Altitude
Vibration
Operating case temp.
Non-operating
Operating
Non-operating
5-500 Hz
-40 °C to +100 °C
-55 °C to +125 °C
10,000 feet max.
40,000 feet max.
2.4 G rms (approx.)
Active low remote ON/OFF (See Note 7)
Logic compatibility
ON
OFF
Embedded Power for
Business-Critical Continuity
Specifications Contd.
Rev.03.08.07
bxb75s
3 of 4
OUTPUT
POWER
(MAX.)
50 W
75 W
75 W
INPUT
VOLTAGE
36-75 Vdc
36-75 Vdc
36-75 Vdc
OVP
4.3 Vdc
6.5 Vdc
14.5 Vdc
OUTPUT
VOLTAGE
3.3 V
5V
12 V
OUTPUT
CURRENT
(MIN.)
0A
0A
0A
OUTPUT
CURRENT
(MAX.)
15 A
15 A
6.25 A
EFFICIENCY
(TYP.)
79%
83%
84%
REGULATION
LINE
±0.05%
±0.05%
±0.05%
LOAD
±0.1%
±0.1%
±0.1%
MODEL
NUMBER
(7, 9,10)
BXB75-48S3V3FLTJ
BXB75-48S05FLTJ
BXB75-48S12FLTJ
Notes
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
μ
H. 12
μ
H 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.
1
PROTECTION
Short circuit
Overvoltage
Undervoltage
Thermal
TELECOM SPECIFICATION
Central office interface A
ETS300-132-2
Continuous, automatic recovery
Non-latching
Non-latching
110 °C baseplate,
automatic recovery
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
EXTERNAL OUTPUT TRIMMING
Output can be externally
trimmed by using the
method shown.
8
TRIM
UP
7
RT1
OR
RT2
TRIM
DOWN
6
Embedded Power for
Business-Critical Continuity
Rev.03.08.07
bxb75s
4 of 4
VIEW SHOWN
PIN SIDE UP
1.90
(48.26)
0.500 (12.69)
±
0.010 (0.25)
CASE
Americas
0.200 (5.08) Min.
Length for all Input
and Output Pins
0.190 (4.83)
±
0.010 (0.25)
5810 Van Allen Way
Carlsbad, CA 92008
USA
Telephone: +1 760 930 4600
Facsimile: +1 760 930 0698
+SEN TRIM -SEN
1.000 (25.40)
0.400 (10.16)
1.400 (35.56)
VI (-)
Vo (-)
0.700 (17.77)
0.400 (10.16)
1.000 (25.40)
2.000 (50.80)
2.40 (60.96)
Max.
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
ON/OFF
1.400 (35.56)
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
0.500 (12.70)
ALL DIMENSIONS IN INCHES (mm)
Tolerance : x.xx
±0.02in.
(0.51mm)
x.xxx
±0.010in.
(0.254mm)
Vo(+)
VI(+)
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.
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