SMT40C Series
DC-DC CONVERTERS
•
•
•
•
•
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C Class Non-isolated
12 Vin single output
1
NEW Product
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•
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40 A current rating
Input voltage range: 10.2 Vdc - 13.8 Vdc
Output voltage range: 0.9 Vdc - 5.0 Vdc
Industry leading value
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Cost optimized design
Excellent transient response
Output voltage adjustability
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Pathway for future upgrades
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Supports silicon voltage migration
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Resulting in reduced design-in and qualification time
Designed in reliability: MTBF of >4 million hours
per Telcordia SR-332
Current share
Available RoHS compliant
The SMT40C Series is a new high density open frame non-isolated converter for space-
sensitive applications. Each model has a wide input range o
f 10.2 Vdc to 13.8 Vdc
and offers
a wide
0.9 Vdc to 5.0 Vdc
output voltage range with a 40 A load. An external resistor adjusts
the output voltage from its pre-set value of 0.9 V to any value up to 5 V. Typical efficiencies are
92% at full load conditions. The SMT40C series offers remote ON/OFF and overcurrent
protection as standard. With full international safety approval including EN60950 and
UL/cUL60950
, the SMT40C reduces compliance costs and time to market.
All specifications are typical at nominal input Vin = 12 V, full load at 25 °C unless otherwise stated
2 YEAR WARRANTY
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage adjustability
(See Note 5)
0.9-5.0 Vdc
±3.0%
±0.2% max.
±1.5% max.
0 A/40 A
At turn-on
At turn-off
(See Note 1)
1.0% max.
100 mV max.
50 mV pk-pk
15 mV rms
75 mV max. deviation
50 µs recovery to
within regulation band
Full load
±10%
GENERAL SPECIFICATIONS
Efficiency
Switching frequency
Approvals and
standards
Material flammability
Weight
Coplanarity
MTBF
Telcordia SR-332,
method II @ 40 ºC
Fixed
(See Note 7)
92% typ.
300 kHz typ.
TÜV Product Services
IEC60950, UL/cUL60950
UL94V-0
28.3 g (1.0 oz)
150 µm
4,585,991 hours
Output setpoint accuracy 1.0% trim resistors
Line regulation
Load regulation
Min/max load
Overshoot
Undershoot
Ripple and noise
5 Hz to 20 MHz
Transient response
(See Note 2)
Current share
INPUT SPECIFICATIONS
Input voltage range
Input current
Input current (max.)
Input reflected ripple
Remote ON/OFF
Logic compatibility
ON
OFF
Start-up time
(See Note 8)
Turn ON threshold
Turn OFF threshold
Power up
Remote ON/OFF
(See Note 4)
Minimum load
Remote OFF
Low line to high line
Full load to min. load
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
(See Note 9)
Operating ambient,
temperature
Non-operating
0 ºC to +80 ºC
-40 ºC to +125 ºC
PROTECTION
10.2-13.8 Vdc
290 mA
30 mA
22 A max @ lo max
and Vin = 10.2 V
150 mA pk-pk
Positive logic
>2.4 Vdc
<0.8 Vdc
<30 ms
<30 ms
9.0 Vdc typ.
7.6 Vdc typ.
Short-circuit
Over-temperature
RECOMMENDED SYSTEM CAPACITANCE
Input capacitance
Output capacitance
(See Note 10) 2 x 270 µF/20 m
Ω
ESR max.
(See Note 10) 3 x 680 µF/10 m
Ω
ESR max.
Foldback, non-latching
Hiccup, non-latching
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. 60950
UL 60950 File No. E139421
TÜV Product Service (EN60950:2000)
Certificate No. B 04 08 19870 228
CB report and certificate to IEC60950-US/6415C/UL
File Name: smt40c.pdf Rev (04): 16 Dec 2005
SMT40C Series
DC-DC CONVERTERS
C Class Non-isolated
OUTPUT
POWER
(MAX.)
200 W
INPUT
VOLTAGE
10.2-13.8 Vdc
OVP
N/A
OUTPUT
OUTPUT
CURRENT
VOLTAGE
(11)
(MIN.)
0.9-5.0 Vdc
0A
12 Vin single output
2
NEW Product
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
OUTPUT
CURRENT
(MAX.)
40 A
EFFICIENCY
92%
REGULATION
LINE
±0.2%
LOAD
±1.5%
MODEL
NUMBER
(13,14)
SMT40C-12SADJJ
Part Number System with Options
SMT40C-12SADJ-SJ
Packaging Options
(13)
J = Pb-free (RoHS 6/6 compliant)
Current Sharing
(12)
No Suffix = Non-isolated
Suffix ‘-S’ = Isolated
Number of Outputs
SADJ = Single Adjustable Output
Input Voltage
12 = 10.2 Vdc to 13.8 Vdc
Product Family
SMT = Surface Mount
Rated Output Current
40 = 40Amps
Performance
C = Cost Optimized
Output Voltage Adjustment of the SMT40C Series
The ultra-wide output voltage trim range offers major advantages to users who
select the SMT40C series. It is no longer necessary to purchase a variety of
modules in order to cover different output voltages. The output voltage can be
trimmed in a range of 0.9 Vdc to 5.0 Vdc. When the SMT40C series converter
leaves the factory the output has been adjusted to the default voltage of 0.9 V.
Notes
1
2
3
4
5
6
7
Measured as per recommended set-up. 2 x Cin = 270 µF (20 mΩ
ESR max, 3 x Cout = 680 µF (10 mΩ ESR max).
di/dt = 10 A/µs, Vin = Nom, Tc = 25 °C, load change = 0.50 lo max.
to 0.75 lo max. and 0.75 lo max. to 0.50 lo max.
External input fusing is recommended.
Measured with external filter. See Application Note 170 for details.
Uses external resistor from trim pin to output ground. See
Application Note 170 for details.
Signal line assumed <3 m in length.
This product is only for inclusion by professional installers within
other equipment and must not be operated as a stand alone
product.
Power-up is the time from application of dc input to Power Good
enabled. Remote ON/OFF is from ON/OFF asserted high to power
good enabled.
See Application Note 170 for operation above 50 ºC.
See Application Note 170 for ripple current requirements.
These models have a wide trim output. The unit has an output of
0.9 Vdc to 5 Vdc. An external resistor adjusts the output voltage.
For redundant current sharing applications that use ORing diodes to
separate the outputs, please add the suffix ‘-S’ to the part number,
e.g. SMT40C-12SADJ-SJ. Please refer to Application Note 170 for
further details.
TSE RoHS 5/6 (non Pb-free) compliant versions may be available on
special request, please contact your local sales representative for
details.
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.
File Name: smt40c.pdf Rev (04): 16 Dec 2005
8
9
10
11
12
13
14
SMT40C Series
DC-DC CONVERTERS
C Class Non-isolated
2.280
(57.91)
12 Vin single output
3
NEW Product
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
0.43
(10.8)
1.450
(36.83)
0.105
(2.67)
0.090
(2.29)
PIN 1
2.100
(53.34)
15 x 0.140
(3.56)
0.062
(1.57)PCB REF
0.011
(0.27) Typ
0.045
(1.13)
PIN 16
2 x 1.345
(3417)
0.485
(12.33)
PIN 18 1.140
(28.96)
All dimensions in inches (mm)
All tolerance
±0.010in
(±0.25mm)
unless otherwise stated
PIN 17
PIN CONNECTIONS
PIN NO.
1
2
3
4
5
6
7
8
9
FUNCTION
Current Share
Trim
GND
GND
GND
Sense-
Sense+
Remote ON/OFF
Power Good
PIN NO.
10
11
12
13
14
15
16
17
18
FUNCTION
Vin
Vin
Vout
Vout
GND
Vout
GND
Mechanical Support
Mechanical Support
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. The information and specifications contained or described herein are subject to change in any manner at any time 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
Longform Datasheet
www.artesyn.com
File Name: smt40c.pdf Rev (04): 16 Dec 2005
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