EXB50 Series
DC/DC CONVERTERS
Single output
1
NEW Product
20-50W High Efficiency DC/DC Converters
•
High efficiency topology, 91% typical on EXB50-48S05
•
Industry standard footprint
•
Wide operating temperature -40°C to +70°C
(natural convection)
•
60% to 110% output trim
•
No minimum load
•
Overvoltage and overtemperature protection
•
Remote sense compensation
•
Remote ON/OFF
The EXB50 series of 50 Watt single-output isolated DC/DC converters are specifically
designed to meet the power needs of low-voltage silicon. Housed in an open-frame
package with an industry-standard footprint, these latest-generation converters offer
efficiencies as high as 91%. The series comprises three 24V input models with 5V,
3.3V and 2V outputs, and six 48V input models with 12V, 5V, 3.3V 2.5V, 2.0V and 1.8V
outputs. All models feature a wide input range, trimmable output voltage and a 10A
current rating (except the 12V). Remote sense and remote ON/OFF facilities are
included as standard, and the converters are comprehensively protected against over-
current, over-voltage and over-temperature conditions.
All specifications are typical at nominal input, full load at 25°C unless otherwise stated
2 YEAR WARRANTY
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage adjustability
Setpoint accuracy
Line regulation
Load regulation
Total error band
Minimum load
Overshoot
Undershoot
Ripple and noise
(See Note 1)
Transient response
(See Notes 2 and 8)
5Hz to 20MHz
24V models
48V models
At turn-on and turn-off
Low line to high line
Full load to min. load
60% to 110%
±1.5% max.
0.1% max.
0.2% max.
±3.0%
0%
None
None
100mV pk-pk
20mV rms
3.0% peak deviation
2.0% peak deviation,
200µs recovery to
within total error band
10% o/p voltage change
INPUT SPECIFICATIONS
Continued
Undervoltage lockout
24V
24V
48V
48V
Power up
Power down
Power up
Power down
17V max.
15V min.
33.2V max.
30.9V min.
30ms
25ms
Start-up time
(See Note 7)
Power up
Remote ON/OFF
EMC CHARACTERISTICS
Conducted emissions
Radiated emissions
Immunity:
ESD air
ESD contact
Radiated field enclosure
Conducted (DC power)
Conducted (signal)
EN55022 (See Note 3)
Level A
EN55022 (See Note 3)
Level B
EN55022
Level A
(See Note 13)
EN61000-4-2 8kV (NP), 15kV (RP)
EN61000-4-2 6kV (NP), 8kV (RP)
EN61000-4-3 10V/m (NP)
EN61000-4-6 10V (NP)
EN61000-4-6 10V (NP)
GENERAL SPECIFICATIONS
Efficiency
Basic insulation
Switching frequency
Input/output
Fixed
See table
1500VDC
300kHz typ.
IEC60950/EN60950, UL/cUL1950
CSA C22.2 No. 950
UL94V-0
50g (1.77oz)
MIL-HDBK-217F @ 25ºC
100% load ground benign
270,000
hours
Remote sense
INPUT SPECIFICATIONS
Input voltage range
(See Note 14)
Input current
(See Note 9)
24V nominal
48V nominal
100V 100ms transient
24V no load
24V Remote OFF
48V no load
48V Remote OFF
24V models
48V models
18 to 36VDC
36 to 75VDC
85mA max.
20mA max.
60mA max.
10mA max.
Approvals and
standards (See Note 5)
Material flammability
Weight
MTBF
Input current (max.)
(See Note 4)
3.25A max. @ Io max.
and Vin = 18 to 36V
1.7A max. @ lo max.
and Vin = 36 to 75V
20mA (pk-pk) typ.
50mA (pk-pk) typ.
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
(See Notes 11, 12
ETS 300 019-2-3
Altitude
(See Note 10)
Operating ambient.
-40°C to +70°C
temperature (natural convection)
Non-operating
-55°C to +125°C
Classes T3.1 to T3.5
3,000 ,metres
10,000m
Derate max. output
current by 20%
Derate max. output
current by 50%
Input reflected ripple
(See Note 6)
Remote ON/OFF
Logic compatibility
ON
OFF
24V models
48V models
(See Note 15)
Open collector ref to -input
Open circuit or >2VDC
<1.2VDC
File Name: EXB50S.PDF Rev: 4 March 2004
EXB50 Series
DC/DC CONVERTERS
OUTPUT
POWER
(MAX.)
20W
33W
50W
18W
20W
25W
33W
50W
50W
INPUT
VOLTAGE
18-36VDC
18-36VDC
18-36VDC
36-75VDC
36-75VDC
36-75VDC
36-75VDC
36-75VDC
36-75VDC
OVP
2.4VDC
3.9VDC
6.0VDC
2.15VDC
2.45VDC
2.95VDC
4.00VDC
6.15VDC
14.2VDC
OUTPUT
VOLTAGE
2.0V
3.3V
5.0V
1.8V
2.0V
2.5V
3.3V
5.0V
12.0V
Single output
2
20-50W High Efficiency DC/DC Converters
For the most current data and application support visit www.artesyn.com/html/products.html
OUTPUT
CURRENT
(MIN.)
0A
0A
0A
0A
0A
0A
0A
0A
0A
OUTPUT
CURRENT
(MAX.)
10A
10A
10A
10A
10A
10A
10A
10A
4.2A
EFFICIENCY
(TYP.)
86.5%
89.0%
90.0%
85.7%
87.5%
87.5%
90.0%
91.0%
90.0%
REGULATION
LINE
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
LOAD
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
MODEL
NUMBER
(9)
EXB50-24S2V0
EXB50-24S3V3
(14)
EXB50-24S05
EXB50-48S1V8
(15)
EXB50-48S2V0
(15)
EXB50-48S2V5
(15)
EXB50-48S3V3
(14,15)
EXB50-48S05
(15)
EXB50-48S12
(15)
Notes
1
2
3
4
5
6
7
Measured as per recommended set-up. 150mV pk-pk for EXB50-48S12.
di/dt = 0.1A/µs, Vin = 24/48VDC, Tc = 25°C, load change = 0.5 lo max. to
0.75 lo max. and 0.75 lo max. to 0.5 lo max.
The EXB50 meets level A and level B conducted emissions only with
external components connected before the input pins to the converter.
Recommended input fusing is a 6.3A HRC 200V rated fuse on the 24V
and 3.15A HRC 200V rated fuse on the 48V.
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 12µH. 12µH inductor in series with +Vin.
Start-up into resistive load.
Notes Continued
8
9
10
11
12
13
14
EXB50-24S2V0 model has 5.0% max. deviation and 300µs recovery.
Maximum output deviation is 10% inclusive of trim.
Contact factory for operation at higher altitude.
See Application Note 113 for de-rating curves.
Wide operating temperature on the EXB50-24S05 is -40ºC to +60ºC.
Input transient (48V) ETS300 132-2 ETR283.
100V, 100ms transient applies to the EXB50-24S3V3 and the EXB50-
48S3V3 models. Please add the suffix 'R03' to the model number e.g.
EXB50-48S3V3R03. This is also active low remote ON/OFF.
15
Active low remote ON/OFF available. Please add suffix '-R' to model
number e.g. EXB50-48S3V3-R
CAUTION: Hazardous internal voltages and high temperatures.
Ensure that unit is not user accessible.
PROTECTION
Short-circuit protection
Over-voltage protection
Thermal protection
TELECOM SPECIFICATION
Central office interface A
ETS300-132-2, input voltage
and current requirements
Continuous
Non-latching clamp
120ºC hot spot temperature with
automatic recovery
EXTERNAL OUTPUT TRIMMING
Output can be externally trimmed
by using the method shown below.
+ Sense
TRIM
UP
Trim
TRIM
DOWN
- Sense
RT1
or
RT2
Please consult our website for the following items:
✔
Application Note
✔
Longform Data Sheet
www.artesyn.com
File Name: EXB50S.PDF Rev: 4 March 2004
EXB50 Series
DC/DC CONVERTERS
Single output
3
20-50W High Efficiency DC/DC Converters
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
ALL DIMENSIONS IN INCHES (mm)
General Tolerance
±0.010
(0.25)
Unless Otherwise Specified
0.20
(5.08)
0.50
(12.70)
STAND-OFFS
4 PLACES
0.43±0.02
(10.90±0.5)
0.138±0.02
(3.50±0.5)
0.16±0.02
(4.10±0.5)
OPEN-FRAME
HEIGHT
1
1.00
(25.40)
9
8
0.40
(10.16)
0.70
(17.78)
1.00
(25.40)
0.02
(0.50)
Ø
0.040
±0.02
(
Ø
1.02
±0.05)
3
Ø
0.079±0.002
(
Ø
2.03±0.05)
BOTTOM
VIEW
7
6
5
4
1.90
(48.26)
2.28
±0.02
(57.91
±0.5)
0.19
(4.83)
PIN CONNECTIONS
PIN NUMBER
1
2
3
4
5
6
7
8
9
FUNCTION
-Vin
No Pin
Remote ON/OFF
+Vin
+Vout
+Sense
Trim
-Sense
-Vout
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. 60950-00 : UL 60950
file No. E174104
TÜV
TÜV Product Service. Certificate No. B 02 02 38572 031
Data Sheet © Artesyn Technologies® 2004
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
✔
Longform Data Sheet
www.artesyn.com
File Name: EXB50S.PDF Rev: 4 March 2004
2.40
±0.02
(60.96
±0.5)
2.00
(50.80)
1.40
(35.56)
1.40
(35.56)
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