EXB50 Series
S i n g l e o u t p u t
DC-DC CONVERTERS 20-50 W High Efficiency DC-DC Converters
2
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OUTPUT
POWER
(MAX.)
OUTPUT
OUTPUT
REGULATION
INPUT
OUTPUT
VOLTAGE
EFFICIENCY
(TYP.)
MODEL
OVP
CURRENT CURRENT
VOLTAGE
NUMBER (16,17)
LINE
LOAD
(MIN.)
0 A
0 A
0 A
0 A
0 A
0 A
0 A
0 A
0 A
(MAX.)
10 A
10 A
10 A
10 A
10 A
10 A
10 A
10 A
4.2 A
20 W
33 W
50 W
18 W
20 W
25 W
33 W
50 W
50 W
18-36 Vdc
18-36 Vdc
18-36 Vdc
36-75 Vdc
36-75 Vdc
36-75 Vdc
36-75 Vdc
36-75 Vdc
36-75 Vdc
2.4 Vdc
3.9 Vdc
6 Vdc
2 V
3.3 V
5 V
86.5%
89.0%
90.0%
85.7%
87.5%
87.5%
90.0%
91.0%
90.0%
0.1%
0.1%
0.1%
0.1%
0.1%
0.1%
0.1%
0.1%
0.1%
0.2%
EXB50-24S2V0J
0.2% EXB50-24S3V3J(14)
0.2% EXB50-24S05J
2.15 Vdc
2.45 Vdc
2.95 Vdc
4 Vdc
1.8 V
2 V
0.2% EXB50-48S1V8J(15)
0.2% EXB50-48S2V0J(15)
0.2% EXB50-48S2V5J(15)
0.2% EXB50-48S3V3J(14,15)
2.5 V
3.3 V
5 V
6.15 Vdc
14.2 Vdc
0.2%
0.2%
EXB50-48S05J(15)
EXB50-48S12J(15)
12 V
Notes
Notes Continued
1
2
3
4
5
6
Measured as per recommended set-up. 150 mV pk-pk for EXB50-
48S12J.
di/dt = 0.1 A/µs, Vin = 24/48 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.
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 6.3 A HRC 200 V rated fuse on the 24 V
and 3.15 A HRC 200 V rated fuse on the 48 V.
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 12 µH. 12 µH inductor in series with
+Vin.
12 Wide operating temperature on the EXB50-24S05J is -40 ºC to +60 ºC.
13 Input transient (48 V) ETS300 132-2 ETR283.
14 100 V, 100 ms transient applies to the EXB50-24S3V3J and the EXB50-
48S3V3J models. Please add the suffix 'R03' to the model number e.g.
EXB50-48S3V3R03J. 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-RJ.
16 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.
17 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.
7
8
9
Start-up into resistive load.
EXB50-24S2V0J model has 5.0% max. deviation and 300 µs recovery.
Maximum output deviation is 10% inclusive of trim.
10 Contact factory for operation at higher altitude.
11 See Application Note 113 for derating curves.
CAUTION: Hazardous internal voltages and high temperatures.
Ensure that unit is not user accessible.
PROTECTION
EXTERNAL OUTPUT TRIMMING
Short-circuit
Over-voltage
Thermal
Continuous
Output can be externally trimmed
by using the method shown below.
Non-latching clamp
+ Sense
120 ºC hot spot temperature with
automatic recovery
TRIM
UP
TELECOM SPECIFICATION
RT1
Central office interface A
ETS300-132-2, input voltage
and current requirements
Trim
or
RT2
TRIM
DOWN
- Sense
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. 60950-00 : UL 60950
File No. E174104
TÜV Product Service. Certificate No. B 03 08 38572 036
File Name: exb50s.pdf Rev (02): 05 Dec 2005
