EXA40 Series
Single output
DC/DC CONVERTERS
40W High Efficiency DC/DC Converters
2
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
INPUT SPECIFICATIONS
Remote ON/OFF
ON
OFF
Remote ON/OFF source current
INPUT
VOLTAGE
18-36VDC
18-36VDC
18-36VDC
18-36VDC
36-75VDC
36-75VDC
36-75VDC
36-75VDC
Active low, control to -Vin,
open collector input
Open circuit voltage
1.0V
MINIMUM
TYPICAL
MAXIMUM
4.5V
2.5V
-70µA
OUTPUT
CURRENT (MAX.)
8.0A
8.0A
8.0A
8.0A
8.0A
8.0A
8.0A
8.0A
Notes
1
5.5V
-100µA
MODEL
NUMBER
(1)
EXA40-24S1V8
EXA40-24S2V75
EXA40-24S3V3
EXA40-24S05
EXA40-48S1V8
EXA40-48S2V75
EXA40-48S3V3
EXA40-48S05
OUTPUT
VOLTAGE
(2)
1.5 to 2.0V
2.5
3.0
4.5
1.5
to
to
to
to
3.0V
3.6V
5.5V
2.0V
NOMINAL
OUTPUT VOLTAGE
1.8V
2.75A
3.3V
5.0V
1.8V
2.75V
3.3V
5.0V
TYPICAL
EFFICIENCY
84%
87%
88%
90%
84%
86%
88%
91%
2.5 to 3.0V
3.0 to 3.6V
4.5 to 5.5V
EMC CHARACTERISTICS (Continued)
ETS 300 386-1 table 5
Conducted emissions
(See Design Note 101)
Radiated emissions
ESD air
ESD contact
Surge (500V)
Fast transients
Radiated immunity
Conducted immunity
EN55022, internal filter
and 4.7µF film cap
EN55022, external filter,
EN55022 (See Design Note)
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
Level A
Level B
Level B
2
3
4
5
6
7
GENERAL SPECIFICATIONS
Efficiency
Basic insulation
Input fuse 24V
Input fuse 48V
Switching frequency
Approvals and
standards
(See Notes 1, 7, 8, 9)
Weight
MTBF, See Design Note
Input/output
(See Note 8)
Fixed
See table
1500VDC
3.5A slow blow
2.0A slow blow
300kHz
8
9
True latching OVP is available as an option. Please add the suffix ‘-V’ to the
model number, e.g. EXA40-24S1V8-V. Additional alphanumeric suffixes
maybe added to indicate minor modifications not affecting the safety
approvals.
Guaranteed minimum output voltage range.
Latching OVP response time is 1ms (typical). OVP latch is reset by toggling
remote ON/OFF or by recycling the input voltage.
Figures are percentage of minimum input voltage.
Rshort
≤20mΩ.
TVS spec : 6V8 @ 10mA, 10V5 @ 57A
4V1 @ 1mA, 7V3 @ 50A
Maximum continuous output power.
40 Watts for S05 models
26.4 Watts for S3V3 models
22 Watts for S2V75 models
14.4 Watts for S1V8 models.
User must provide recommended fuses in order to comply with safety
approvals.
Maximum temperature on components Q100, Q102 and Q103 not to
exceed 120
°
C. See Application Note for details.
DERATING CURVE
Output Power (%)
100%
(See Notes 1, 7, 8, 9)
EN60950
Bi-national UL1950
CSA C22.2 No. 234/950
MIL-HDBK-217
Output Power (%)
EXA40-24S05
All other Models
25g (0.88 oz)
250,000 hours
75%
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient
-40°C to +70°C,
temperature
See curves
Non-operating
-55°C to +105°C
Over temperature
Loss of Function
75°C to +85°C
shutdown
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
IEC 68-2-56
10% to 100% RH
IEC 68-2-30
Condensation
IEC68-2-6
2 to 9 Hz, 3mm disp.
9 to 200Hz 1g
MIL-STD-202F
Method 204 cond. A
IEC-68-2-29
MIL-STD-202F
Method 213B cond. A
50%
25%
27.5%
0%
-40°C -30°C-20°C -10°C 0°C 10°C 20°C 30°C 40°C 50°C 60°C 70°C 80°C 90°C 100°C
AMBIENT TEMPERATURE (°C)
Figure 1: Natural Convection (0.1m/s) Typical derating, See Application Note.
Relative humidity
Vibration, Class 3M5
CAUTION: Hazardous internal voltages and high temperatures.
Ensure that unit is not user accessible.
Shock, Class 3M5
Please consult our website for the following items:
Application Note
Shortform Data Sheet
www.artesyn.com
File Name: LF_EXA40.PDF Rev: 15 Jan 2002
ARTESYN [ ARTESYN TECHNOLOGIES ]
