EXA40 Series
S i n g l e o u t p u t
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
MINIMUM
TYPICAL
MAXIMUM
Remote ON/OFF
Active low, control to -Vin,
open collector input
Open circuit voltage
ON
OFF
4.5V
5.5V
1.0V
2.5V
Remote ON/OFF source current
-70µA
-100µA
INPUT
VOLTAGE
OUTPUT
VOLTAGE
NOMINAL
OUTPUT VOLTAGE
OUTPUT
CURRENT (MAX.)
TYPICAL
EFFICIENCY
MODEL
NUMBER
(2)
(1)
18-36VDC
18-36VDC
18-36VDC
18-36VDC
36-75VDC
36-75VDC
36-75VDC
36-75VDC
1.5 to 2.0V
2.5 to 3.0V
3.0 to 3.6V
4.5 to 5.5V
1.5 to 2.0V
2.5 to 3.0V
3.0 to 3.6V
4.5 to 5.5V
1.8V
2.75A
3.3V
5.0V
1.8V
2.75V
3.3V
5.0V
8.0A
8.0A
8.0A
8.0A
8.0A
8.0A
8.0A
8.0A
84%
EXA40-24S1V8
EXA40-24S2V75
EXA40-24S3V3
EXA40-24S05
87%
88%
90%
84%
EXA40-48S1V8
EXA40-48S2V75
EXA40-48S3V3
EXA40-48S05
86%
88%
91%
Notes
EMC CHARACTERISTICS (Continue d)
1
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.
ETS 300 386-1 table 5
Conducted emissions
(See Design Note 101)
EN55022, internal filter
Level A
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 B
Level B
2
3
Radiated emissions
ESD air
ESD contact
Surge (500V)
Fast transients
Radiated immunity
Conducted immunity
4
5
6
TVS spec : 6V8 @ 10mA, 10V5 @ 57A
4V1 @ 1mA, 7V3 @ 50A
Maximum continuous output power.
7
40 Watts for S05 models
26.4 Watts for S3V3 models
GENERAL SPECIFICATIONS
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.
Efficiency
See table
1500VDC
Basic insulation
Input/output
8
9
Input fuse 24V
Input fuse 48V
(See Note 8)
3.5A slow blow
2.0A slow blow
Switching frequency
Fixed
300kHz
Approvals and
standards
(See Notes 1, 7, 8, 9)
EN60950
EXA40-24S05
All other Models
DERATING CURVE
Output Power (% )
Bi-national UL1950
(See Notes 1, 7, 8, 9)
CSA C22.2 No. 234/950
100%
75%
50%
25%
0%
Weight
25g (0.88 oz)
MTBF, See Design Note MIL-HDBK-217
250,000 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient
temperature
Non-operating
-40°C to +70°C,
See curves
-55°C to +105°C
27.5%
Over temperature
shutdown
Loss of Function
Self-Recovery (LFS)
75°C to +85°C
-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)
ETS 300 019-2-3
Air temperature
Classes T3.1 to T3.5
Figure 1: Natural Convection (0.1m/s) Typical derating, See Application Note.
Low: IEC 68-2-1
High: IEC 68-2-2
Change: IEC 68-2-1
-40°C
+70°C
-40°C to +70°C
Relative humidity
IEC 68-2-56
IEC 68-2-30
10% to 100% RH
Condensation
CAUTION: Hazardous internal voltages and high temperatures.
Ensure that unit is not user accessible.
Vibration, Class 3M5
IEC68-2-6
2 to 9 Hz, 3mm disp.
9 to 200Hz 1g
MIL-STD-202F
IEC-68-2-29
MIL-STD-202F
Method 204 cond. A
Shock, Class 3M5
Method 213B cond. A
Please consult our website for the following items: ✔ Application Note ✔ Shortform Data Sheet
www.a rte s yn.com
File Name: LF_EXA40.PDF Rev: 15 Jan 2002
ARTESYN [ ARTESYN TECHNOLOGIES ]
