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35ꢀ150 Watts
MTC Series
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10ꢀ40 VDC Input Range
Designed for Vetronic & Avionic Use
Magnetic Feedback Technology
ꢀ55 °C to +100 °C Operation
MILꢀSTD 461 and DEFꢀSTAN 59ꢀ411
MILꢀSTD 1275 and DEFꢀSTAN 61ꢀ5
3 Year Warranty
Specification
Input
General
Input Voltage Range
Transient Input Range • 50 VDC for 100 ms
Inrush Current
Turn On
• 10.0-40.0 VDC
Efficiency
Isolation
• See table
• 1500 VDC Input to Output
1000 VDC Input to Case
1000 VDC Output to Case
• <40 A at 28 VDC
• >9.5 VDC
Isolation Capacitance • 2500 pF
Turn Off
• <9.0 VDC
Switching Frequency
• Fixed, 400 kHz typical (MTC35 & 50)
450 kHz typical (MTC75 & 150)
Input Reverse Voltage • None
Protection
Input Current
• See table
Frequency
• 400-500 kHz (MTC35 & 50)
Synchronization
Power Density
450-550 kHz (MTC75 & 150)
3
3
Output
Output Voltage
Output Voltage Trim
• MTC35: 31.8 W/in , MTC50: 30.2 W/in ,
3
3
MTC75: 27.4 W/in , MTC150: 54.8 W/in ,
• See table
• -20%, +10% ( 10% for 3.3 V version),
see note 2
• No minimum load required on single
output models, 5% load required on each
output of dual output models
MTBF
• >1 MHrs to MIL-HDBK-217F at 25 °C, GF
Environmental
Minimum Load
Case Temperature
• -40 °C to +100 °C (start up at -55 °C)
Storage Temperature • -60 °C to +125 °C
Line Regulation
Load Regulation
•
1% Vout nominal
Cooling
• Conduction cooling through baseplate
• Single Output: 1% Vout nominal,
Dual Output: 2%
Operating Humidity
• 95% Relative Humidity
240 hrs MIL-STD-810F Method 507.4
• Tested to 70000 ft (21336 m)
• 75 g MIL-STD-810F Method 516.5
• 15 to 2000 Hz MIL-STD-810F
Method 514.5, table 514.5-VIII
Output Set Tolerance
Ripple & Noise
•
1.5% max
Operating Altitude
Shock
• ≤5 Vout: 50 mV pk-pk max, >5 Vout:
100 mV pk-pk, at max load and
20 MHz bandwidth
Vibration
Overvoltage Protection • 120-140% Vout max
Bump
• 2000 Bumps in each axis 40 g
MIL-STD-810F Method 516.5
• 48 hrs MIL-STD-810F Method 509.4
Overcurrent Protection • 110-140% at nominal Iout, constant power
down to 40-50% of nominal output
voltage
Salt Atmosphere
EMC
Short Circuit Protection • Continuous trip and restart (hiccup mode)
until the short is removed
Maximum Capacitive
Load
• 300 µF x Iout max for startup
within 100 ms
Conducted Emissions • EN55022 Conducted Level B*
MIL-STD 461F: CE102*
Thermal Warning
Remote Sense
• Active when internal temp is >105 ˚C
• Compensates for 0.5 V total voltage drop
DEF STAN 59-411 DCE01/DCE02*
• MIL-STD-704 B-F,
MIL-STD-1275A/B/C/D*
• MIL-STD-461F CS101, CS114, CS115,
CS116*
Immunity
Cross Regulation
Transient Response
•
•
4% on dual outputs (see note 3)
4% max deviation recovery to within
1% in 500 µs for a 50% load change at
0.1 A/µs
Conducted
Susceptibility
DEF-STAN 61-5 part 6 issue 5*
Start Up Time
• <100 ms
• <20 ms
Start Up Rise Time
Current Share
* When used in conjunction with standard EMI filter and surge
protection modules, DSF and FSO series. Consult longform
datasheet.
• Parallel up to 4 modules, single output
versions only (MTC75 & 150 only)
Temperature Coefficient• 0.03%/˚C
Remote On/Off • On: ≥3.5 V or open circuit, Off: ≤1.8 V