DC-DC CONVERTERS 40 W High Efficiency DC-DC Converters 1
2 YEAR WARRANTY
EXA40 Series
Single output
•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
EMC CHARACTERISTICS (Cont.)
Radiated emissions
EN55022 (See Design Note 102)
Level B
ESD air EN61000-4-2, level 3
ESD contact EN61000-4-2, level 4
Surge (500 V) 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 1500 Vdc
Input fuse 24 V (See Note 8) 3.5 A slow blow
Input fuse 48 V 2.0 A slow blow
Switching frequency Fixed 300 kHz
Approvals and EN60950
standards UL1950
(See Notes 7, 8, 9) CSA C22.2 No. 950
Weight 25 g (0.88 oz)
MTBF MIL-HDBK-217 250,000 hours
(See Design Note 102)
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
Relative humidity IEC 68-2-56 10% to 100% RH
IEC 68-2-30 Condensation
Vibration, Class 3M5 IEC68-2-6 2-9 Hz, 3 mm disp.
9-200 Hz 1 g
MIL-STD-202F Method 204 cond. A
Shock, Class 3M5 IEC-68-2-29
MIL-STD-202F Method 213B cond. A
SPECIFICATIONS
File Name: exa40.pdf Rev (02): 09 Dec 2005
OUTPUT SPECIFICATIONS
Voltage adjustability 2.75 V, 3.3 V, 5 V ±10% min.
(See Note 10) 1.8 V output +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 100 mV pk-pk max.
20 MHz bandwidth 20 mV rms max.
Temperature coefficient ±0.01%/°C
Transient response 50% to 75% and back 100 mV
Peak dev. settling time to 1.0%, no external cap. 250 µs
Short circuit protection Continuous
(See Note 5) automatic recovery
INPUT SPECIFICATIONS
Input voltage range 24 Vin nominal 18-36 Vdc
48 Vin nominal 36-75 Vdc
Input current No load 100 mA max.
Remote OFF 4 mA max.
UVLO turn ON voltage All inputs (See Note 4) 94%
UVLO turn OFF voltage All inputs (See Note 4) 86%
Start-up time Nominal line 50 ms
Active high remote ON/OFF
Logic compatibility Open Collector
ref. to -input
ON Open circuit voltage 4.5 Vdc
OFF <1.0 Vdc
INPUT SPECIFICATIONS
ETS 300 386-1 table 5
Conducted emissions EN55022, internal filter and Level A
(See Design Note 102) two 4 µF film capacitors
EN55022, external filter Level B
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
NNootteess
1True latching OVP is available as an option. Please add the suffix ‘-V’ to the
model number, e.g. EXA40-24S1V8-VJ. Additional alphanumeric suffixes
maybe added to indicate minor modifications not affecting the safety
approvals.
2Gauranteed minimum output voltage range.
3Latching OVP response time is 1 ms (typical). OVP latch is reset by
toggling remote ON/OFF or by recycling the input voltage.
4Figures are percentage of minimum input voltage.
5Rshort ≤20 mΩ.
6TVS spec : 6V8 @ 10 mA, 10V5 @ 57 A
4V1 @ 1 mA, 7V3 @ 50 A
7Maximum continuous output power.
40 Watts for S05J models
26.4 Watts for S3V3J models
22 Watts for S2V75J models
14.4 Watts for S1V8J models.
8User must provide recommended fuses in order to comply with safety
approvals.
9Maximum temperature on components Q100, Q102 and Q103 not to
exceed 120 °C. See Application Note 101 for details.
10 For continuous operation below 88%, minimum input voltage trimming up
>5% is not recommended on the 24S05J and 48S05J models.
11 The ‘J’ suffix indicates that these parts are Pb-free (RoHS 6/6) compliant.
TSE RoHS 5/6 (non Pb-free) compliant versions may be available on
special request, please contact your local sales representative for details.
12 NOTICE: Some models do not support all options. Please contact your
local Artesyn representative or use the on-line model number search tool at
http://www.artesyn.com/powergroup/products.htm to find a suitable
alternative.
CAUTION: Hazardous internal voltages and high temperatures.
Ensure that unit is not user accessible.
EXA40 Series
Single output
DC-DC CONVERTERS 40 W High Efficiency DC-DC Converters 2
File Name: exa40.pdf Rev (02): 09 Dec 2005
INPUT OUTPUT NOMINAL OUTPUT TYPICAL MODEL
VOLTAGE VOLTAGE (2) OUTPUT VOLTAGE CURRENT (MAX.) EFFICIENCY NUMBER (1,3,11,12)
11,12) 18-36 Vdc 1.5-2.0 V 1.8 V 8.0 A 84% EXA40-24S1V8J
18-36 Vdc 2.5-3.0 V 2.75 V 8.0 A 87% EXA40-24S2V75J
18-36 Vdc 3.0-3.6 V 3.3 V 8.0 A 88% EXA40-24S3V3J
18-36 Vdc 4.5- 5.5 V 5.0 V 8.0 A 90% EXA40-24S05J
36-75 Vdc 1.5-2.0 V 1.8 V 8.0 A 84% EXA40-48S1V8J
36-75 Vdc 2.5-3.0 V 2.75 V 8.0 A 86% EXA40-48S2V75J
36-75 Vdc 3.0-3.6 V 3.3 V 8.0 A 88% EXA40-48S3V3J
36-75 Vdc 4.5 -5.5 V 5.0 V 8.0 A 91% EXA40-48S05J
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
10K
TRIMPOT
TRIM
UP
TRIM
DOWN
6
8
7
6
8
7
RTU
RTD
810K
EXTERNAL OUTPUT TRIMMING (10)
All models can be externally trimmed by
using the method shown below.
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)
ø0.040 ±0.002
(ø1.02) ±0.05
0.142
(3.60)
BOTTOM VIEW
ALL DIMENSIONS IN INCHES (MM)
0.200
(5.08)
1
2
4
6
7
8
General tolerance ±0.010 (±0.25)
unless otherwise specified
Datasheet © Artesyn Technologies
®
2005
The information and specifications contained in this datasheet 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.
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
EXA40 Series
Single output
DC-DC CONVERTERS 40 W High Efficiency DC-DC Converters 3
Please consult our website for the following items: Application Note Longform Data Sheet www.artesyn.com
File Name: exa40.pdf Rev (02): 09 Dec 2005
PIN CONNECTIONS
PIN NO. SINGLE OUTPUT
1 + Input
2 – Input
4 Remote ON/OFF
6 + Output
7 - Output
8 Trim
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. 60950-00 : UL 60950
File No. E174104
VDE Certificate No.112836. File No. 10401-3336-0129
CB Report and Certificate to IEC60950, Certificate No. DE1-31103
