Rev.02.23.10_64
EXB50 Series
3 of 4
Embedded Power for
Business-Critical Continuity
313
process
yellow
3405
1797
1375
116
2607
652
242
2985
375
240
Notes
1 Measured as per recommended set-up. 150 mV pk-pk for EXB50-48S12J.
2 di/dt = 0.1 A/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 The EXB50 meets level A and level B conducted emissions only with external
components connected before the input pins to the converter.
4 Recommended input fusing is 3.15 A HRC 200 V rated fuse on the 48 V.
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 Start-up into resistive load.
8 Maximum output deviation is 10% inclusive of trim.
9 Contact factory for operation at higher altitude.
10 See Application Note 113 for derating curves.
11 Input transient (48 V) ETS300 132-2 ETR283.
CAUTION: Hazardous internal voltages and high temperatures.
Ensure that unit is not user accessible.
12 100 V, 100 ms transient applies to the EXB50-48S3V3J models. Please add
the sufx ‘R03’ to the model number e.g. EXB50-48S3V3R03J. This is also
active low remote ON/OFF.
13 Active low remote ON/OFF available. Please add sufx ‘-R’ to model number
e.g. EXB50-48S3V3-RJ.
14 The ‘J’ sufx 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.
15 NOTICE: Some models do not support all options. Please contact your local
Emerson Network Power representative or use the on-line model number
search tool at http://www.PowerConversion.com to nd a suitable alternative.
Output can be externally trimmed by using the method shown below.
TRIM
UP
+ Sense
Trim
- Sense
TRIM
DOWN
RT1
or
RT2
External Output Trimming
Protection
Short-circuit Continuous
Overvoltage Non-latching clamp
Thermal 120 °C hot spot temperature with automatic recovery
Telecom Specication
Central ofce Interface A ETS300-132-2, Input voltage and current requirements
Ordering Information
Output
Power (Max.)
Input
Voltage
OVP Output
Voltage
Output Currents Efficiency
(Typ)
Regulation Model Numbers
(16,17)
(Min) (Max) Line Load
18 W 36 - 75 Vdc 2.15 Vdc 1.8 V 0 A 10 A 85.7% ± 0.1% ± 0.2%
EXB50-48S1V8J
(15)
20 W 36 - 75 Vdc 2.45 Vdc 2 V 0 A 10 A 87.5% ± 0.1% ± 0.2%
EXB50-48S2V0J
(15)
25 W 36 - 75 Vdc 2.95 Vdc 2.5 V 0 A 10 A 87.5% ± 0.1% ± 0.2%
EXB50-48S2V5J
(15)
33 W 36 - 75 Vdc 4 Vdc 3.3 V 0 A 10 A 90.0% ± 0.1% ± 0.2%
EXB50-48S3V3J
(14, 15)
50 W 36 - 75 Vdc 6.15 Vdc 5 V 0 A 10 A 91.0% ± 0.1% ± 0.2%
EXB50-48S05J
(15)
50 W 36 - 75 Vdc 14.2 Vdc 12 V 0 A 4.2 A 90.0% ± 0.1% ± 0.2%
EXB50-48S12J
(15)
