DC/DC CONVERTERS 40W High Efficiency DC/DC Converters
1
2 YEAR WARRANTY
EXA40 Series
S i n g l e o u t p u t
High efficiency topology, 91% typical at 5V
Approved to EN60950, UL1950, CSA C22.2 No. 234/950
Operating ambient temperature of -40C to +70C
(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
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 18-36VDC and
36-75VDC. Typical efficiencies are 91% for the 5V output, 88% for the 3.3V, 86%
for the 2.75V and 84% for the 1.8V. 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 25C unless otherwise stated
SPECIFICATIONS
File Name: LF_EXA40.PDF Rev: 15 Jan 2002
OUTPUT SPECIFICATIONS
MINIMUM
TYPICAL
MAXIMUM
Voltage adjustability
2V75, 3V3, 5V outputs
10%
11%
12%
1V8 output
+12/-17%
+13/-18%
+14/-19%
Line regulation
Low line to high line
+0.05%
+0.4%
Load regulation
Full load to no load
+0.20%
+0.4%
Output current range
0A
8A
Ripple and noise
20MHz bandwidth
50mV pk-pk
100mV pk-pk
20MHz bandwidth
10mV rms
20mV rms
Temperature coefficient
See Figure 4
0.01%/C
0.02%/C
OVP transient (See Note 6)
5V output
6.8V TVS
3V3/2V75 outputs
4.1V TVS
1V8 output
4.1V TVS
OVP latching (See Notes 1, 3)
5V output
6.0V
6.2V
6.4V
(optional)
3V3 output
4.0V
4.2V
4.4V
2V75 output
3.4V
3.6V
3.8V
1V8 output
2.4V
2.5V
2.6V
Short circuit protection (Note 5)
Continuous
Short circuit current (Note 5)
Rshort <20m
10A rms
12A rms
Transient response
Peak deviation
50% to 75% and back
100mV
150mV
Settling time
to 1.0%, no external cap
250s
400s
Current limit
Low line to high line
100%
140%
180%
Voltage accuracy
1.0%
1.5%
INPUT SPECIFICATIONS
MINIMUM
TYPICAL
MAXIMUM
Input voltage range
24Vin nominal
18VDC
24VDC
36VDC
48Vin nominal
36VDC
48VDC
75VDC
Input current
No load
50mA
100mA
Remote OFF, UVLO
2.5mA
4mA
Inrush current
ETS 300 132-2
UVLO turn ON voltage (Note 4)
All inputs
88%
94%
100%
UVLO turn OFF voltage (Note 4)
All inputs
77%
86%
94%
Start-up time
Nominal line
50ms
100ms
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
Notes
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.
2
Guaranteed minimum output voltage range.
3
Latching OVP response time is 1ms (typical). OVP latch is reset by toggling
remote ON/OFF or by recycling the input voltage.
4
Figures are percentage of minimum input voltage.
5
Rshort
20m
.
6
TVS spec : 6V8 @ 10mA, 10V5 @ 57A
4V1 @ 1mA, 7V3 @ 50A
7
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.
8
User must provide recommended fuses in order to comply with safety
approvals.
9
Maximum temperature on components Q100, Q102 and Q103 not to
exceed 120
C. See Application Note for details.
EXA40 Series
S i n g l e o u t p u t
DC/DC CONVERTERS 40W High Efficiency DC/DC Converters
2
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
INPUT
OUTPUT
NOMINAL
OUTPUT
TYPICAL
MODEL
VOLTAGE
VOLTAGE
(2)
OUTPUT VOLTAGE
CURRENT (MAX.)
EFFICIENCY
NUMBER
(1)
18-36VDC
1.5 to 2.0V
1.8V
8.0A
84%
EXA40-24S1V8
18-36VDC
2.5 to 3.0V
2.75A
8.0A
87%
EXA40-24S2V75
18-36VDC
3.0 to 3.6V
3.3V
8.0A
88%
EXA40-24S3V3
18-36VDC
4.5 to 5.5V
5.0V
8.0A
90%
EXA40-24S05
36-75VDC
1.5 to 2.0V
1.8V
8.0A
84%
EXA40-48S1V8
36-75VDC
2.5 to 3.0V
2.75V
8.0A
86%
EXA40-48S2V75
36-75VDC
3.0 to 3.6V
3.3V
8.0A
88%
EXA40-48S3V3
36-75VDC
4.5 to 5.5V
5.0V
8.0A
91%
EXA40-48S05
Figure 1: Natural Convection (0.1m/s) Typical derating, See Application Note.
100%
75%
50%
25%
0%
0
C 10
C 20
C 30
C 40
C 50
C 60
C 70
C 80
C 90
C 100
C
DERATING CURVE
Output Power (%)
Output
Power
(
%
)
AMBIENT TEMPERATURE (
C)
27.5%
-40
C -30
C -20
C -10
C
EXA40-24S05
All other Models
INPUT SPECIFICATIONS
MINIMUM
TYPICAL
MAXIMUM
Remote ON/OFF
Active low, control to -Vin,
open collector input
ON
Open circuit voltage
4.5V
5.5V
OFF
1.0V
2.5V
Remote ON/OFF source current
-70A
-100A
CAUTION: Hazardous internal voltages and high temperatures.
Ensure that unit is not user accessible.
EMC CHARACTERISTICS (Continued)
ETS 300 386-1 table 5
Conducted emissions
EN55022, internal filter
Level A
(See Design Note 101)
and 4.7F film cap
EN55022, external filter,
Level B
Radiated emissions
EN55022 (See Design Note)
Level B
ESD air
EN61000-4-2, level 3
ESD contact
EN61000-4-2, level 4
Surge (500V)
EN61000-4-5, level 3,4
Fast transients
EN61000-4-4, level 3,4
Radiated immunity
EN61000-4-3, level 3
Conducted immunity
EN61000-4-6, level 3
GENERAL SPECIFICATIONS
Efficiency
See table
Basic insulation
Input/output
1500VDC
Input fuse 24V
(See Note 8)
3.5A slow blow
Input fuse 48V
2.0A slow blow
Switching frequency
Fixed
300kHz
Approvals and
(See Notes 1, 7, 8, 9)
EN60950
standards
Bi-national UL1950
(See Notes 1, 7, 8, 9)
CSA C22.2 No. 234/950
Weight
25g (0.88 oz)
MTBF, See Design Note
MIL-HDBK-217
250,000 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient
-40C to +70C,
temperature
See curves
Non-operating
-55C to +105C
Over temperature
Loss of Function
75C to +85C
shutdown
Self-Recovery (LFS)
ETS 300 019-2-3
Classes T3.1 to T3.5
Air temperature
Low: IEC 68-2-1
-40C
High: IEC 68-2-2
+70C
Change: IEC 68-2-1
-40C to +70C
Relative humidity
IEC 68-2-56
10% to 100% RH
IEC 68-2-30
Condensation
Vibration, Class 3M5
IEC68-2-6
2 to 9 Hz, 3mm disp.
9 to 200Hz 1g
MIL-STD-202F
Method 204 cond. A
Shock, Class 3M5
IEC-68-2-29
MIL-STD-202F
Method 213B cond. A
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
EXA40 Series
S i n g l e o u t p u t
DC/DC CONVERTERS 40W High Efficiency DC/DC Converters
3
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
PIN CONNECTIONS
PIN NUMBER
SINGLE OUTPUT
1
+ Input
2
Input
4
Remote ON/OFF
6
+ Output
7
- Output
8
Trim
2.20
(55.88)
1.80
(45.72)
0.20
(5.08)
6
7
8
1
2
4
0.20
(5.08)
2.20
(55.88)
0.20
(5.08)
0.40 (10.16)
0.40 (10.16)
0.40 (10.16)
0.50 (12.70)
0.60 (15.24)
0.35
(8.89)
1.800
(45.72)
2.200
0.02
(55.88
0.5
)
1.200
(30.48)
0.600
(15.24)
1.000
(25.40)
0.200
(5.08)
2.042
(51.88)
2.200
0.02
(55.88
0.5
)
2.003
(50.88)
0.700
(17.78)
0.300
(7.62)
0.100
(2.54)
0.398
0.012
(10.10
0.3
)
0.020
(0.50)
0.040
0.002
(1.02)
0.05
0.142
(3.60)
0.200
(5.08)
1
2
4
6
7
8
unless otherwise specified
10K
TRIMPOT
TRIM
UP
TRIM
DOWN
6
8
7
6
8
7
RT
U
RT
D
8
10K
EXTERNAL OUTPUT TRIMMING
Single output models can be externally trimmed
by 10% using either method shown below.
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
EXA40 Series
S i n g l e o u t p u t
DC/DC CONVERTERS 40W High Efficiency DC/DC Converters
4
Data Sheet Artesyn Technologies 2002
The information and specifications contained in this data sheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising
from printing errors or inaccuracies. Specifications are subject to change without notice. No rights under any patent accompany the sale of any such product(s) or information contained herein.
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
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