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RG40

REGULATED DC TO DC POWER CONVERTER
FAA TSO-C71

The RG40 is a solid-state, DC to DC switch-mode converter that converts an input DC voltage (27.5 VDC nominal) t o a regulated 13.75 VDC output voltage.

The RG40 meets the Federal Aviation Administration (FAA) technical standard order TSO-C71 (airborne static DC to DC electrical power converter - for air carrier aircraft).

Two or more RG40's may be paralleled (external diodes required) if additional power is required.

Specifications

Input Voltage
22 to 41 VDC (27.5 VDC nominal)
Input Current
18.1 ADC at full load (nominal)
Output Voltage
13.75 VDC
Output Current
30.0 ADC at full load
Output Ripple
13.75 mV
Efficiency
80% (minimum)
Load Regulation
1% Line, 1% Load, 1% Temperature
Load Transient Response
NL to FL condition: 4.0 Vp undershoot for 5.0 mSec. (nominal).
FL to NL condition: 2.0 Vp overshoot for 5.0 mSec. (nominal).
Overload Capacity
110% of the rated output power for a period of two hours; 150% of the rated output power for a period of 5 minutes ( 1 min. at 70°C ambient temperature). Without damage or degradation, the converter will withstand a sustained short circuit and provide 200% of the rated output current for a period of one minute.
Protection Circuit (Reverse Polarity)
The converter will trip a MIL-C-5809 25 ADC input circuit breaker in the event of reverse polarity input voltage connection.
Protection Circuit (Shut Down)
The converter will shutdown under the following conditions:
  • Input voltage > 41 VDC
    (-3 VDC hysteresis)
  • Input voltage < 15 VDC
    (-2 VDC hysteresis)
  • Output voltage > 16 VDC
    (-2 VDC hysteresis)
  • Internal temperature > 100°C
Temperature
-55°C to +71°C (-65°F to 160°F)
Altitude
55,000 ft.
Size
9.50" L x 6.9" W x 3.38" H. (mounting flange included)
Weight
3.5 lbs.
Environmental
DO-160 Env. Cat F2XBB (LV) XXXXXXXXXXXX(ZA)XXX
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