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EXA40-24S05J

产品描述40 W High Efficiency DC-DC Converters
文件大小131KB,共3页
制造商Emerson
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EXA40-24S05J概述

40 W High Efficiency DC-DC Converters

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EXA40 Series
DC-DC CONVERTERS
Single output
40 W High Efficiency DC-DC Converters
1
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
2 YEAR WARRANTY
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage adjustability
(See Note 10)
Voltage accuracy
Line regulation
Load regulation
Minimum load
Ripple and noise
20 MHz bandwidth
Temperature coefficient
Transient response
Peak dev. settling time
Short circuit protection
(See Note 5)
INPUT SPECIFICATIONS
Input voltage range
Input current
UVLO turn ON voltage
UVLO turn OFF voltage
Start-up time
24 Vin nominal
48 Vin nominal
No load
Remote OFF
All inputs (See Note 4)
All inputs (See Note 4)
Nominal line
18-36 Vdc
36-75 Vdc
100 mA max.
4 mA max.
94%
86%
50 ms
Open Collector
ref. to -input
4.5 Vdc
<1.0 Vdc
50% to 75% and back
to 1.0%, no external cap.
Low line to high line
Full load to no load
2.75 V, 3.3 V, 5 V
1.8 V output
±10% min.
+12/-17% min.
±1.0%
+0.05%
+0.20%
0%
100 mV pk-pk max.
20 mV rms max.
±0.01%/°C
100 mV
250 µs
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
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
Continuous
automatic recovery
MIL-HDBK-217
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient
temperature
Non-operating
Loss of Function
Self-Recovery (LFS)
-40 °C to +70 °C,
See curves
-55 °C to +105 °C
75 °C to +85 °C
Over temperature
shutdown
ETS 300 019-2-3
Air temperature
Active high remote ON/OFF
Logic compatibility
ON
OFF
INPUT SPECIFICATIONS
ETS 300 386-1 table 5
Conducted emissions
(See Design Note 102)
Open circuit voltage
Relative humidity
Vibration, Class 3M5
EN55022, internal filter and
two 4 µF film capacitors
EN55022, external filter
Level A
Level B
Shock, Class 3M5
Classes T3.1 to T3.5
Low: IEC 68-2-1
-40 °C
High: IEC 68-2-2
+70 °C
Change: IEC 68-2-1
-40 °C to +70 °C
IEC 68-2-56
10% to 100% RH
IEC 68-2-30
Condensation
IEC68-2-6
2-9 Hz, 3 mm disp.
9-200 Hz 1 g
MIL-STD-202F
Method 204 cond. A
IEC-68-2-29
MIL-STD-202F
Method 213B cond. A
File Name: exa40.pdf Rev (02): 09 Dec 2005

 
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