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SMT20C Series
DC-DC CONVERTERS * * * * * * C Class Non-isolated
5 Vin and 12 Vin single output
1 NEW Product
* *
20 A current rating Input voltage range: 4.5 Vdc to 5.5 Vdc or 10.2 Vdc to 13.8 Vdc Output voltage range: 0.9 Vdc to 3.3/5.0 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 >7 million hours per Telcordia SR-332 Available RoHS compliant
The SMT20C Series is a new high density open frame non-isolated converter for space-sensitive applications. Each model has a wide input range (4.5 Vdc to 5.5 Vdc or 10.2 Vdc to 13.8 Vdc) and offers a wide 0.9 Vdc to 3.3/5 V output voltage range with a 20 A load. An external resistor adjusts the output voltage from its pre-set value of 0.9 V to any value up to the maximum allowed value for that model. Typical efficiencies are 87% for the 5 V input version and 91% for the 12 V input version at full load conditions. The SMT20C series offers remote ON/OFF and overcurrent protection as standard. With full international safety approval including EN60950 and UL/cUL60950, the SMT20C 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) 5 V input models 12 V input models 0.9-3.3 Vdc 0.9-5.0 Vdc 2.5% 0.2% max. 1.3% max. 0 A/20 A 5 V input models 12 V input models (See Note 1) 3.0% max. 1.0% max. See Table on page 2 100 mV max. deviation 200 s recovery to within regulation band
INPUT SPECIFICATIONS (CONTD.) Turn ON threshold Turn OFF threshold 5 Vin 12 Vin 5 Vin 12 Vin 4.5 Vdc typ. 9.3 Vdc typ. 4.3 Vdc typ. 7.8 Vdc typ.
Output setpoint accuracy With 1.0% trim resistors Line regulation Load regulation Min/max load Overshoot (at turn on) Ripple and noise 5 Hz to 20 MHz Transient response (See Note 2) Low line to high line
GENERAL SPECIFICATIONS Efficiency Switching frequency Approvals and standards Material flammability Weight Coplanarity MTBF Telcordia SR-332 Fixed (See Note 7) See Table on page 2 275 kHz typ. TUV Product Services IEC60950, UL/cUL60950 UL94V-0 14.2 g (0.5 oz) 150 m 7,963,574 hours
INPUT SPECIFICATIONS Input voltage range Input current Input current (max.) (See Note 3) Input reflected ripple Remote ON/OFF Logic compatibility ON OFF Start-up time (See Note 8) Power up Remote ON/OFF 5 V input model 12 V input model Minimum load Remote OFF 5 V input model 12 V input model (See Note 4) 4.5-5.5 Vdc 10.2-13.8 Vdc 65 mA 20 mA 15 A @ lo max. 11 A @ lo max. 200 mA (pk-pk) Positive Logic >2.4 Vdc <0.8 Vdc <20 ms <20 ms
ENVIRONMENTAL SPECIFICATIONS Thermal performance (See Note 9) Operating ambient, temperature Non-operating 0 C to +80 C -40 C to +125 C
PROTECTION Short-circuit protection RECOMMENDED SYSTEM CAPACITANCE Input capacitance Output capacitance (See Note 10) 270 F/20 m ESR max. (See Note 10) 680 F/10 m ESR max. Hiccup, non-latching
File Name: smt20c.pdf Rev (03): 15 Dec 2005
SMT20C Series
DC-DC CONVERTERS C Class Non-isolated
OUTPUT POWER (MAX.) 66 W 100 W INPUT VOLTAGE 4.5-5.5 Vdc 10.2-13.8 Vdc OVP N/A N/A OUTPUT OUTPUT CURRENT VOLTAGE (11) (MIN.) 0.9-3.3 V 0.9-5.0 V 0A 0A
5 Vin and 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.) 20 A 20 A MAXIMUM LOAD (TYP.) 87% 91%
REGULATION LINE 0.2% 0.2% LOAD 1.3% 1.3%
MODEL NUMBER (12,13) SMT20C-05SADJJ SMT20C-12SADJJ
Part Number System with Options
SMT20C-12SADJJ
Packaging Options (12) J = Pb-free (RoHS 6/6 compliant)
Product Family SMT = Surface Mount Rated Output Current 20 = 20 A Performance C = Cost Optimized
Number of Outputs SADJ = Single Adjustable Output
Input Voltage 05 = 4.5 Vdc to 5.5 Vdc 12 = 10.2 Vdc to 13.8 Vdc
Output Voltage Adjustment of the SMT20C Series
The ultra wide output voltage trim range offers major advantages to users who select the SMT20C 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 SMT20C series converter leaves the factory the output has been adjusted to the default voltage of 0.9 V.
Notes
1 2 Measured as per recommended set-up. 2 x Cin = 270 F (20 m ESR max, Cout = 680 F (10 m ESR max). 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. At 12 V, 0.9 Vout, the max voltage deviation is 200 mV. External input fusing is recommended. Measured with external filter. See Application Note 169 for details. Uses external resistor from trim pin to output ground. Min value = 485 for 5 V model, 280 for 12 V model. See Application Note 169 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 169 for operation above 50 C. See Application Note 169 for ripple current requirements. These models have a wide trim output. 5 Vin has an output of 0.9 Vdc to 3.3 Vdc and 12 Vin has an output of 0.9 Vdc to 5 Vdc. An external resistor adjusts the output voltage. 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.
Ripple and Noise Specification Model Output Voltage Pk - Pk 30 mV 40 mV 40 mV 50 mV RMS 15 mV 15 mV 25 mV 25 mV
3 4 5
5 V input models 0.9 Vdc to 2.5 Vdc 3.3 Vdc 12 V input models 0.9 Vdc to 2.5 Vdc 3.3 Vdc to 5 Vdc
6 7
8
9 10 11
12
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. 60950 UL 60950 File No. E139421 TUV Product Service (EN60950:2000) Certificate No. B 04 08 19870 228 CB report and certificate to US/6415C/UL
File Name: smt20c.pdf Rev (03): 15 Dec 2005
13
SMT20C Series
DC-DC CONVERTERS C Class Non-isolated
5 Vin and 12 Vin single output
3 NEW Product
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
1.20 (30.5) PIN 7
0.084 (2.14)
0.901 (22.88)
PIN 8
1.010 (25.65)
1.10 (27.9)
1.14 (29.0)
ID LABEL LOCATION
0.956 (24.27)
PIN 1
0.48 max. (12.2)
0.13 (3.3)
0.054 (1.38)
0.150 (3.81) PIN 6 0.795 (20.19) 0.940 (23.88)
3X 0.145 (3.68)
0.457 (11.61) Installed Ht.
0.062 (1.57) REF
8 X 0.105
(2.67)
0.290 (7.37 max)
Seating Plane 0.011 (0.27) TYP
All dimensions in inches (mm) All tolerance 0.010in (0.25mm) unless otherwise stated
PIN CONNECTIONS PIN NUMBER 1 2 3 4 5 6 7 8 FUNCTION Vout Vout Power Good GND GND Vin Trim Remote ON/OFF
Datasheet (c) Artesyn Technologies(R) 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: smt20c.pdf Rev (03): 15 Dec 2005

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