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PDF EXB50-48S12-RY Data sheet ( Hoja de datos )
| Número de pieza | EXB50-48S12-RY | |
| Descripción | DC-DC / Industry Standard Isolated Half Brick | |
| Fabricantes | Emerson | |
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EXB50 Series
Single output
DC-DC CONVERTERS 20-50 W High Efficiency DC-DC Converters
• High efficiency topology, 91% typical on EXB50-48S05J
• 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
• Available RoHS compliant
1
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 24 V input models with 5 V,
3.3 V and 2 V outputs, and six 48 V input models with 12 V, 5 V, 3.3 V 2.5 V, 2 V and
1.8 V outputs. All models feature a wide input range, trimmable output voltage and a
10 A current rating (except the 12 V). Remote sense and remote ON/OFF facilities are
included as standard, and the converters are comprehensively protected against
overcurrent, overvoltage and overtemperature conditions.
All specifications are typical at nominal input, full load at 25 °C unless otherwise stated
2 YEAR WARRANTY
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage adjustability
60% to 110%
Setpoint accuracy
±1.5% max.
Line regulation
Low line to high line
0.1% max.
Load regulation
Full load to min. load
0.2% max.
Total error band
±3.0%
Minimum load
0%
Overshoot
At turn-on and turn-off
None
Undershoot
None
Ripple and noise
(See Note 1)
5 Hz to 20 MHz
100 mV pk-pk
20 mV rms
Transient response
(See Notes 2 and 8)
24 V models
48 V models
3.0% peak deviation
2.0% peak deviation,
200 µs recovery to
within total error band
Remote sense
(See Note 9) 10% o/p voltage change
INPUT SPECIFICATIONS
Input voltage range
(See Note 14)
24 V nominal
48 V nominal
100 V 100 ms transient
18-36 Vdc
36-75 Vdc
Input current
24 V no load
24 V Remote OFF
48 V no load
48 V Remote OFF
85 mA max.
20 mA max.
60 mA max.
10 mA max.
Input current (max.)
(See Note 4)
24 V models
48 V models
3.25 A max. @ Io max.
and Vin = 18-36 Vdc
1.7 A max. @ lo max.
and Vin = 36-75 Vdc
Input reflected ripple
(See Note 6)
24 V models
48 V models
20 mA (pk-pk) typ.
50 mA (pk-pk) typ.
Remote ON/OFF
Logic compatibility
ON
OFF
(See Note 15)
Open collector ref to -input
Open circuit or >2 Vdc
<1.2 Vdc
INPUT SPECIFICATIONS Continued
Undervoltage lockout
24 V Power up
24 V Power down
48 V Power up
48 V Power down
Start-up time
(See Note 7)
Power up
Remote ON/OFF
17 V max.
15 V min.
33.2 V max.
30.9 V min.
30 ms
25 ms
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 8 kV (NP), 15 kV (RP)
EN61000-4-2 6 kV (NP), 8 kV (RP)
EN61000-4-3 10 V/m (NP)
EN61000-4-6 10 V (NP)
EN61000-4-6 10 V (NP)
GENERAL SPECIFICATIONS
Efficiency
See table
Basic insulation
Input/output
1500 Vdc
Switching frequency
Fixed
300 kHz typ.
Approvals and
standards (See Note 5)
IEC60950/EN60950, UL/cUL1950
CSA C22.2 No. 950
Material flammability
UL94V-0
Weight
50 g (1.77 oz)
MTBF
MIL-HDBK-217F @ 25 ºC
100% load ground benign
270,000
hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
(See Notes 11, 12)
ETS 300 019-2-3
Operating ambient. -40 °C to +70 °C
temperature (natural convection)
Non-operating
-55 °C to +125 °C
Classes T3.1 to T3.5
Altitude
(See Note 10)
3,000 metres
10,000 metres
Derate max. output
current by 20%
Derate max. output
current by 50%
File Name: exb50s.pdf Rev (02): 05 Dec 2005
1 page | ||
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