BXB75 SERIES
Single output
[ 2 YEAR WARRANTY ]
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
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
All specifications are typical at nominal input, full load at 25C unless otherwise stated
PAGE 150
OUTPUT SPECIFICATIONS
Voltage adjustability
60% to 110%
Set point accuracy
1.0%
Line regulation
Low line to high line
0.05%
Load regulation
Full load to min. load
0.10%
Minimum load
0%
Overshoot
At turn-on and turn-off
None
Undershoot
None
Ripple and noise
3.3V and 5V
75mV pk-pk,
(5Hz to 20MHz)
20mV rms
(See Note 1)
12V and 15V
100mV pk-pk,
30mV rms
Temperature coefficient
0.01%/C
Transient response
2.0% max. deviation
(See Note 2)
170s recovery
to within 1.0%
Remote sense
0.5VDC transmission
line drop compensation
INPUT SPECIFICATIONS
Input voltage range
24Vin nominal
18 to 36VDC
48Vin nominal
36 to 75VDC
Input current
No load
100mA max.
Remote OFF
20mA max.
Input current (max.)
48V models
3.5A max. @ Io max.
(See Note 4)
and Vin = 0 to 75V
Input reflected ripple
(See Note 6)
5mA pk-pk
Active low remote ON/OFF
(See Note 7)
Logic compatibility
Open collector ref to -input
ON
1.2VDC max.
OFF
Open circuit
INPUT SPECIFICATIONS CONTINUED
Undervoltage lockout
24Vin: power up
17V
24Vin: power down
16V
48Vin: power up
34V
48Vin: power down
32.5V
Start-up time
Power up
20ms
(See Note 8)
Remote ON/OFF
20ms
EMC CHARACTERISTICS
Conducted emissions
Bellcore 1089
Level A
(See Note 3)
FCC part 15
Level A
EN55022, CISPR22
Level A
GENERAL SPECIFICATIONS
Efficiency
See table
Isolation voltage
Input/case
1500VDC
Input/output
1500VDC
Output/case
1500VDC
Switching frequency
Fixed
500kHz typ.
Approvals and
VDE0805, EN60950, IEC950
standards (See Note 5)
UL1950, CSA C22.2 No. 950
Case material
Aluminum baseplate
with plastic case
Material flammability
UL94V-0
Weight
110g (3.88oz)
MTBF
Bellcore 332
1,400,000 hours
MIL-HDBK-217F
580,000 hours
@ 40C, 100% full load
min.
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating case temp. -40C to +100C
Non-operating
-55C to +125C
Altitude
Operating
10,000 feet max.
Non-operating
40,000 feet max.
Vibration
5Hz to 500Hz
2.4G rms (approx.)
Notes
1
Measured with 10F tantalum capacitor and 1F ceramic capacitor across
output.
2
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.
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
H. 12
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. BXB75-48S05FHT. Consult
factory for further details and options.
8
Start-up into resistive load.
International Safety Standard Approvals
VDE0805/EN60950/IEC950 File No. 10401-3336-1095
UL1950 File No. E136005
CSA C22.2 No. 950 File No. LR41062C
ALL DIMENSIONS IN INCHES (mm)
Tolerance
:
x.xx
0.02in. (0.51mm)
x.xxx
0.010in. (0.254mm)
VIEW SHOWN
PIN SIDE UP
1.90
(48.26)
0.190 (4.83)
0.010 (0.25)
2 x .080 (2.03)
0.002 (0.05)
4 x M3 x 0.5 Through
7 x .040 (1.02)
0.002 (0.05)
2.28 (57.91) Max.
0.700 (17.77)
1.000 (25.40)
1.400 (35.56)
2.000 (50.80)
0.190 (4.83)
0.010 (0.25)
0.400 (10.16)
0.500 (12.69)
0.010 (0.25)
0.400 (10.16)
1.000 (25.40)
1.400 (35.56)
V
o(+) +SEN TRIM -SEN V
o
(-)
VI(+) ON/OFF CASE VI (-)
0.200 (5.08) Min.
Length for all Input
and Output Pins
0.500 (12.70)
2.40 (60.96)
Max.
TRIM
UP
TRIM
DOWN
8
7
6
RT1
OR
RT2
PROTECTION
Short circuit protection
Continuous, automatic recovery
Overvoltage protection
Non-latching
Undervoltage protection
Non-latching
Thermal protection
110C baseplate,
automatic recovery
50 to 75 Watt
Wide input DC/DC converters
DC/DC CONVERTERS
|
50-75W DC/DC
PAGE 151
http://www.artesyn.com
TELECOM SPECIFICATIONS
Central office interface A
ETS300-132-2
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
INPUT
OVP
OUTPUT
OUTPUT
OUTPUT
EFFICIENCY
REGULATION
MODEL
POWER
VOLTAGE
VOLTAGE
CURRENT
CURRENT
(TYP.)
LINE
LOAD
NUMBER
(7)
(MAX.)
(MIN.)
(MAX.)
50W
18-36VDC
4.3VDC
3.3V
0A
15A
78%
0.05%
0.1%
BXB75-24S3V3FLT
75W
18-36VDC
6.5VDC
5V
0A
15A
82%
0.05%
0.1%
BXB75-24S05FLT
75W
18-36VDC
14.5VDC
12V
0A
6.25A
83%
0.05%
0.1%
BXB75-24S12FLT
75W
18-36VDC
17.5VDC
15V
0A
5.0A
84%
0.05%
0.1%
BXB75-24S15FLT
50W
36-75VDC
4.3VDC
3.3V
0A
15A
79%
0.05%
0.1%
BXB75-48S3V3FLT
75W
36-75VDC
6.5VDC
5V
0A
15A
83%
0.05%
0.1%
BXB75-48S05FLT
75W
36-75VDC
14.5VDC
12V
0A
6.25A
84%
0.05%
0.1%
BXB75-48S12FLT
75W
36-75VDC
17.5VDC
15V
0A
5.0A
85%
0.05%
0.1%
BXB75-48S15FLT
Data Sheet Artesyn Technologies 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: Application Note SimscopeTM
5
EXTERNAL OUTPUT TRIMMING
Output can be externally trimmed
by using the method shown below.
DS_BXB75S_20000101.PDF
PDF 
ZIP