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PDF EXA40-48S05J Data sheet ( Hoja de datos )

Número de pieza EXA40-48S05J
Descripción DC-DC / Low Power Isolated Industrial
Fabricantes Emerson 
Logotipo Emerson Logotipo



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EXA40 Series
Single output
DC-DC CONVERTERS 40 W High Efficiency DC-DC Converters
High efficiency topology, 91% typical at 5 V
Approved to EN60950, UL1950, CSA C22.2 No. 950
Operating ambient temperature of -40 °C to +70 °C
(natural convection)
Complies with ETS 300 019-1-3/2-3
Complies with ETS 300 132-2 input voltage and current
requirements
Fully compliant with ETS 300 386-1
RoHS Compliant
The EXA40 Series, comprising 8 different models is targeted specifically at the
telecommunications, industrial electronics, mobile Telecommunications and distributed
power markets. The series offers two wide input voltage ranges of 18 Vdc to 36 Vdc and
36 Vdc to 75 Vdc. Typical efficiencies are 91% for the 5 V output, 88% for the 3.3 V, 86%
for the 2.75 V and 84% for the 1.8 V. The series has been designed primarily for
Telecommunications applications and complies with ETS 300 386-1 immunity and emission
standards for high priority of service class. In addition the series complies with ETS 300
019-1-3 environmental standards (all classes) including shock, vibration, humidity and
thermal performance. A high level of reliability has been designed into all models through
the extensive use of conservative derating criteria. Remote enable and overtemperature
shutdown are included as standard while true latching OVP is available as an option.
All specifications are typical at nominal input, full load at 25 °C unless otherwise stated
1
2 YEAR WARRANTY
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage adjustability
(See Note 10)
2.75 V, 3.3 V, 5 V
1.8 V output
±10% min.
+12/-17% min.
Voltage accuracy
±1.0%
Line regulation
Low line to high line
+0.05%
Load regulation
Full load to no load
+0.20%
Minimum load
0%
Ripple and noise
20 MHz bandwidth
100 mV pk-pk max.
20 mV rms max.
Temperature coefficient
±0.01%/°C
Transient response
50% to 75% and back
Peak dev. settling time to 1.0%, no external cap.
100 mV
250 µs
Short circuit protection
(See Note 5)
Continuous
automatic recovery
INPUT SPECIFICATIONS
Input voltage range
24 Vin nominal
48 Vin nominal
18-36 Vdc
36-75 Vdc
Input current
No load
Remote OFF
100 mA max.
4 mA max.
UVLO turn ON voltage All inputs (See Note 4)
UVLO turn OFF voltage All inputs (See Note 4)
94%
86%
Start-up time
Nominal line
50 ms
Active high remote ON/OFF
Logic compatibility
ON Open circuit voltage
OFF
Open Collector
ref. to -input
4.5 Vdc
<1.0 Vdc
INPUT SPECIFICATIONS
ETS 300 386-1 table 5
Conducted emissions
(See Design Note 102)
EN55022, internal filter and
two 4 µF film capacitors
EN55022, external filter
Level A
Level B
EMC CHARACTERISTICS (Cont.)
Radiated emissions
ESD air
ESD contact
Surge (500 V)
Fast transients
Radiated immunity
Conducted immunity
EN55022 (See Design Note 102) Level B
EN61000-4-2, level 3
EN61000-4-2, level 4
EN61000-4-5, level 3, 4
EN61000-4-4, level 3, 4
EN61000-4-3, level 3
EN61000-4-6, level 3
GENERAL SPECIFICATIONS
Efficiency
Basic insulation
Input fuse 24 V
Input fuse 48 V
Switching frequency
Approvals and
standards
(See Notes 7, 8, 9)
Weight
MTBF
(See Design Note 102)
Input/output
(See Note 8)
Fixed
MIL-HDBK-217
See table
1500 Vdc
3.5 A slow blow
2.0 A slow blow
300 kHz
EN60950
UL1950
CSA C22.2 No. 950
25 g (0.88 oz)
250,000 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient
temperature
Non-operating
-40 °C to +70 °C,
See curves
-55 °C to +105 °C
Over temperature
shutdown
Loss of Function
75 °C to +85 °C
Self-Recovery (LFS)
ETS 300 019-2-3
Classes T3.1 to T3.5
Air temperature
Low: IEC 68-2-1
-40 °C
High: IEC 68-2-2
+70 °C
Change: IEC 68-2-1 -40 °C to +70 °C
Relative humidity
IEC 68-2-56
IEC 68-2-30
10% to 100% RH
Condensation
Vibration, Class 3M5
IEC68-2-6
MIL-STD-202F
2-9 Hz, 3 mm disp.
9-200 Hz 1 g
Method 204 cond. A
Shock, Class 3M5
IEC-68-2-29
MIL-STD-202F Method 213B cond. A
File Name: exa40.pdf Rev (02): 09 Dec 2005

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