2 YEAR WARRANTY
SMT40C Series
1 2 V i n s i n g l e o u t p u t
All specifications are typical at nominal input Vin = 12 V, full load at 25 C unless otherwise stated
SPECIFICATIONS
File Name: smt40c.pdf Rev (04): 16 Dec 2005
DC-DC CONVERTERS C Class Non-isolated
1
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
Cost optimized design
Excellent transient response
Output voltage adjustability
Pathway for future upgrades
Supports silicon voltage migration
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.
NEW Product
OUTPUT SPECIFICATIONS
Voltage adjustability
(See Note 5)
0.9-5.0 Vdc
Output setpoint accuracy 1.0% trim resistors
3.0%
Line regulation
Low line to high line
0.2% max.
Load regulation
Full load to min. load
1.5% max.
Min/max load
0 A/40 A
Overshoot
At turn-on
1.0% max.
Undershoot
At turn-off
100 mV max.
Ripple and noise
(See Note 1)
50 mV pk-pk
5 Hz to 20 MHz
15 mV rms
Transient response
75 mV max. deviation
(See Note 2)
50 s recovery to
within regulation band
Current share
Full load
10%
INPUT SPECIFICATIONS
Input voltage range
10.2-13.8 Vdc
Input current
Minimum load
290 mA
Remote OFF
30 mA
Input current (max.)
22 A max @ lo max
and Vin = 10.2 V
Input reflected ripple
(See Note 4)
150 mA pk-pk
Remote ON/OFF
Logic compatibility
Positive logic
ON
>2.4 Vdc
OFF
<0.8 Vdc
Start-up time
Power up
<30 ms
(See Note 8)
Remote ON/OFF
<30 ms
Turn ON threshold
9.0 Vdc typ.
Turn OFF threshold
7.6 Vdc typ.
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. 60950
UL 60950 File No. E139421
TV Product Service (EN60950:2000)
Certificate No. B 04 08 19870 228
CB report and certificate to IEC60950-US/6415C/UL
GENERAL SPECIFICATIONS
Efficiency
92% typ.
Switching frequency
Fixed
300 kHz typ.
Approvals and
(See Note 7)
TV Product Services
standards
IEC60950, UL/cUL60950
Material flammability
UL94V-0
Weight
28.3 g (1.0 oz)
Coplanarity
150 m
MTBF
Telcordia SR-332,
4,585,991 hours
method II @ 40 C
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient,
0 C to +80 C
(See Note 9)
temperature
Non-operating
-40 C to +125 C
PROTECTION
Short-circuit
Foldback, non-latching
Over-temperature
Hiccup, non-latching
RECOMMENDED SYSTEM CAPACITANCE
Input capacitance
(See Note 10) 2 x 270 F/20 m
ESR max.
Output capacitance
(See Note 10) 3 x 680 F/10 m
ESR max.
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
SMT40C Series
1 2 V i n s i n g l e o u t p u t
DC-DC CONVERTERS C Class Non-isolated
2
NEW Product
File Name: smt40c.pdf Rev (04): 16 Dec 2005
OUTPUT
INPUT
OVP
OUTPUT
OUTPUT
OUTPUT
EFFICIENCY
REGULATION
MODEL
POWER
VOLTAGE
VOLTAGE
(11)
CURRENT
CURRENT
LINE
LOAD
NUMBER
(13,14)
(MAX.)
(MIN.)
(MAX.)
200 W
10.2-13.8 Vdc
N/A
0.9-5.0 Vdc
0 A
40 A
92%
0.2%
1.5%
SMT40C-12SADJJ
N
No
otte
es
s
1
Measured as per recommended set-up. 2 x Cin = 270 F (20 m
ESR max, 3 x Cout = 680 F (10 m
ESR max).
2
di/dt = 10 A/s, 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.
3
External input fusing is recommended.
4
Measured with external filter. See Application Note 170 for details.
5
Uses external resistor from trim pin to output ground. See
Application Note 170 for details.
6
Signal line assumed <3 m in length.
7
This product is only for inclusion by professional installers within
other equipment and must not be operated as a stand alone
product.
8
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.
9
See Application Note 170 for operation above 50 C.
10
See Application Note 170 for ripple current requirements.
11
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.
12
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.
13
TSE RoHS 5/6 (non Pb-free) compliant versions may be available on
special request, please contact your local sales representative for
details.
14
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.
S M T 4 0 C - 1 2 S A D J - S J
Part Number System with Options
Rated Output Current
40 = 40Amps
Number of Outputs
SADJ = Single Adjustable Output
Product Family
SMT = Surface Mount
Performance
C = Cost Optimized
Input Voltage
12 = 10.2 Vdc to 13.8 Vdc
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.
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Current Sharing
(12)
No Suffix = Non-isolated
Suffix `-S' = Isolated
Packaging Options
(13)
J = Pb-free (RoHS 6/6 compliant)
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
SMT40C Series
1 2 V i n s i n g l e o u t p u t
DC-DC CONVERTERS C Class Non-isolated
3
NEW Product
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
All dimensions in inches (mm)
All tolerance
0.010in (0.25mm)
unless otherwise stated
2.280
(57.91)
1.450
(36.83)
PCB REF
0.062
(1.57)
0.43
(10.8)
0.105
(2.67)
0.011
(0.27) Typ
0.140
(3.56)
15 x
0.090
(2.29)
2.100
(53.34)
0.045
(1.13)
0.485
(12.33)
1.140
(28.96)
PIN 1
PIN 16
PIN 17
PIN 18
1.345
(3417)
2 x
PIN CONNECTIONS
PIN NO.
FUNCTION
PIN NO.
FUNCTION
1
Current Share
10
Vin
2
Trim
11
Vin
3
GND
12
Vout
4
GND
13
Vout
5
GND
14
GND
6
Sense-
15
Vout
7
Sense+
16
GND
8
Remote ON/OFF
17
Mechanical Support
9
Power Good
18
Mechanical Support
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