LT-71B
REGULATED 28/14VDC TO DC POWER CONVERTER
FAA TSO-C71
The LT-71/ LT-101 Series is a pulse width-modulated DC to DC converter that provides regulated power.
The converter transforms an unregulated 28 VDC to a regulated and fixed DC output.
The Model LT-71/ LT-101 Series is primarily designed to supply regulated fixed DC voltage to critical communication, navigation and digital equipment.
Features:
- State of the art design for regulation and positive logic for output overvoltage protection.
- Other voltage control range is available.
- The Model LT-SERIES is serviceable, small and lightweight (33 watts per pound and 1.7 watts per cubic inch).
- Designed to meet various applicable portions MIL-STD 704 notice 3, MIL-STD-202 and MIL-T-5422F class 1A.
Specifications
Input Voltage
28 VDC nom., 20 TO 40 VDC.
28 VDC nom., 20 TO 40 VDC.
Output Voltage
See Table Below.
See Table Below.
Regulation
2% for line, 2% load and 2% temperature.
2% for line, 2% load and 2% temperature.
Output Ripple
50 mVp-p.
50 mVp-p.
Protection (Overload)
Input current foldback and output current limits when overload exceeds approximately 125% of rating
Input current foldback and output current limits when overload exceeds approximately 125% of rating
Protection (Overvoltage)
Output voltage is limited to approximately 125% of rating.
Output voltage is limited to approximately 125% of rating.
Temperature
-55°C to +71°C (sufficient cooling required @ +71°C ambient)
-55°C to +71°C (sufficient cooling required @ +71°C ambient)
Altitude
55,000 Feet.
55,000 Feet.
Size
2.3" H x 2. 4" W x 6.8" L.
5.7 cm H x 6 cm W x 17 cm L
2.3" H x 2. 4" W x 6.8" L.
5.7 cm H x 6 cm W x 17 cm L
Weight
1.5 lbs. (683 grams).
1.5 lbs. (683 grams).
| Detail Specifications: | LT-71 | LT-71A | LT-101A-BP31 |
| Max VA Rating | 112 | 112 | 100 |
| Input Voltage (VDC) | 26 to 40 | 26 to 40 | 20 to 40 |
| Input Current (ADC) @ 28 VDC In |
4.7 | 4.7 | 4.2 |
| Output Voltage (VDC) | 14 | 14 | 0 to 28 |
| Output Current (ADC) | 8.0 | 8.0 | 3.6 |
| Efficiency (%) | 80 | 80 | 84 |
|
Connectors: |
||
| Model | Mating Plug | Receptacle |
| LT-71 | MS3106A14S-5S-X | MS3102A14S-5P-X |
| LT-71A | KPT-06B-14-5S | PT-02E-14-5P |
| LT-101A-BP | KPT-06B-14-5S | PT-02E-14-5P |
| LT-71B | MS3106A14S-5S-X | MS3102A14S-5P-X |
