SMT40C Datasheet, PDF (1/3 Pages) Artesyn Technologies – DC-DC CONVERTERS C Class Non-isolated

SMT40C Series
12 Vin single output
DC-DC CONVERTERS C Class Non-isolated
• 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 of 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
1
NEW Product
2 YEAR WARRANTY
SPECIFICATIONS
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
5 Hz to 20 MHz
(See Note 1)
50 mV pk-pk
15 mV rms
Transient response
(See Note 2)
75 mV max. deviation
50 µs recovery to
within regulation band
Current share
Full load
±10%
INPUT SPECIFICATIONS
Input voltage range
Input current
Minimum load
Remote OFF
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
(See Note 4)
Power up
Remote ON/OFF
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.
GENERAL SPECIFICATIONS
Efficiency
92% typ.
Switching frequency
Fixed
300 kHz typ.
Approvals and
standards
(See Note 7)
TÜV Product Services
IEC60950, UL/cUL60950
Material flammability
UL94V-0
Weight
28.3 g (1.0 oz)
Coplanarity
150 µm
MTBF
Telcordia SR-332,
method II @ 40 ºC
4,585,991 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
(See Note 9)
Operating ambient,
temperature
0 ºC to +80 ºC
Non-operating
-40 ºC to +125 ºC
PROTECTION
Short-circuit
Over-temperature
Foldback, non-latching
Hiccup, non-latching
RECOMMENDED SYSTEM CAPACITANCE
Input capacitance
Output capacitance
(See Note 10) 2 x 270 µF/20 mΩ ESR max.
(See Note 10) 3 x 680 µF/10 mΩ ESR max.
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