DC Power Converters Airborne and Military
BC14, BC28
REGULATED DC TO DC POWER CONVERTER
Battery Charger Converter
Outline Drawing | External Wiring
DT30
TSO & MIL Qualified
Multi-Channel DC/AC Power Converter
(0-5 Vdc, 0-28 Vdc & 0-115 Vac Three-Channel Dimmer Unit)
Outline Drawing | External Wiring
LT-4X SERIES
MIL & FAA TSO APPROVED
REGULATED DC TO DC POWER CONVERTER
Read More
Outline Drawing | External Wiring
LT-248
REGULATED DC TO DC POWER CONVERTER
(Two Channel 0-5 & 5 Vdc High Power Light Dimmer)
LT-50
REGULATED DC TO DC POWER CONVERTER
28Vdc to 5Vdc 7.5Amps Continuous Output Power
Outline Drawing |External Wiring
LT-52(A), LT-70, LT-100
FAA TSO-C71 REGULATED DC TO DC CONVERTER
LIGHT DIMMER
Outline Drawing | External Wiring | Input vs Output Voltage
LT-53, LT-73, LT-103
FAA TSO-C71 REGULATED DC TO DC CONVERTER
LIGHT DIMMER WITH EXTERNAL VOLTAGE CONTROL
Outline Drawing | External Wiring | Input vs Output Voltage
LT-55, LT-57 Series
FAA TSO REGULATED DC TO DC CONVERTER
HIGH POWER LIGHT DIMMER
Outline Drawing | External Wiring
LT-71, LT-101
REGULATED 28/14VDC TO DC POWER CONVERTER
FAA TSO-C71
Outline Drawing | External Wiring
LT-71B
REGULATED 28/14VDC TO DC POWER CONVERTER
FAA TSO-C71
Outline Drawing | External Wiring
LT-101A-BP-31
REGULATED 28/14VDC TO DC POWER CONVERTER
FAA TSO-C71
Outline Drawing | External Wiring
LT-352, LT-3100
REGULATED DC TO DC POWER CONVERTER
MULTIPLE OUTPUT LIGHT DIMMER
Outline Drawing | External Wiring and Physical Size
LF10
TSO'd REGULATED DC TO DC POWER CONVERTER
(0-5 Vdc High Power Light Dimmer)
Outline Drawing | External Wiring
LH14
TSO'd REGULATED DC TO DC POWER CONVERTER
(0-28 Vdc High Power Light Dimmer)
Outline Drawing |External Wiring
RB125, RB126
REGULATED DC TO DC POWER BOOSTER
FAA TSO-C71
Outline Drawing | External Wiring | Input vs Output Voltage
RH28
TSO'd REGULATED DC-DC POWER CONVERTER
(14 to 28Vdc High Power DC Converter)
RG28
TSO'd REGULATED DC-DC POWER CONVERTER
(28 to 14Vdc High Power DC Converter)
Outline Drawing | External Wiring
RG40
REGULATED DC TO DC POWER CONVERTER
FAA TSO-C71
Outline Drawing | External Wiring
RG56
TSO'd REGULATED DC-DC POWER CONVERTER
(28 to 14Vdc High Power DC Converter)
Outline Drawing | External Wiring
RHB40
TSO'd DC/DC Regulated Boost Converter
Wide Input Voltage Range (8 to 30.5Vdc)
Outline Drawing | External Wiring
RR18
TSO'd REGULATED DC TO DC POWER CONVERTER
10-24Vdc to 24Vdc Regulated DC Power Converter
Outline Drawing | External Wiring
REGULATED DC TO DC POWER CONVERTER
(Two Channel 0-5 & 5 Vdc High Power Light Dimmer)
DESCRIPTION
The LT-248 is comprised of two DC to DC converters, one fixed @5Vdc and the other controllable from 0 to 5Vdc. The variable output portion is primarily designed to control the light intensity of incandescent bulbs in system lighting. The fixed output portion may be used when regulated 5Vdc up to 7.5 ampere power is required.
The variable output voltage is adjusted via a remote control rheostat 5K ohm 1/2 watt to ground.
| Specifications: | |
| Input Voltage: | 28 Vdc NOM., 22 to 36 Vdc |
| Input Current: | 3.4 Amps typ at 28 Vdc input and full load |
| 5.2 Amps maximum at 18Vdc input and full load | |
| Output Voltage: | #1: 0-5 Vdc regulated #2: 5 Vdc fixed regulated |
| Output Current: | #1: 0- 7.5 Amps continuous #2: 7.5 Amps continuous |
| Regulation: | 2% for load, 2% for line and 2% for temperature |
| Ripple: | 10 mVpp typ at 25c, 25mVpp maximum |
| Overload(OL): | Deliver 110% output power for 2 hours |
| Protection(OL): | Withstands without damage or degradation load exceeding 110% to an output short circuit. Unit delivers rated output power upon removal of the overload condition |
| Protection(SC): | Under a output short circuit condition, the input current folds back and the output current is limited to a safe value |
| Protection(OV): | Output voltage is limited to approx 130% of rating even though the remote rheostat opens or shorts for output #1 or certain types of internal failure. |
| Reverse Polarity: | A reverse polarity diode is placed across the input to trip a MIL-C-6809 5 amp circuit breaker in the event of input reverse polarity. |
| Efficiency: | 75% typical |
| Temperature: | -55° C to +71° C |
| Altitude: | 55,000FT |
| Environmental: | DO-160C ENV. CAT F2ZBB(MLV)XXXDFSAAAXXXZKXX |
| Connector: | Unit mates with KPTO6A14-5S(SR) |
| Finish: | Gold iridite per MIL-C-5541 Class 1A |
| Weight: | 1.2 LBS (544 grams) |
| ;style7">Size: | 1.65 H x 4.00 W x 5.03 L inches (Less protrusion of connector and screw heads) 4.1 H x 5.1 W x 12.8 L cm |
MIL & FAA TSO APPROVED
REGULATED DC TO DC POWER CONVERTER
The LT-4X (Series) is a pulse width-modulated DC to DC converter that provides regulated output power. This converter transforms an unregulated 28 VDC to regulated output power. The output voltage is adjusted via a remote control rheostat 5K ohm 1/2 W to ground. Fixed output and voltage control models are also available.
The LT-4X (Series) is primarily designed to control the light intensity of incandescent bulbs in aircraft lighting. The LT-4X (Series) are qualified to the FAA technical standards order (TSO-C71) for airborne static DC-DC electrical power converters.
Features:
- State of the art design for regulation and positive logic for output overvoltage protection (PWM control topology).
- The LT-4X (SERIES) is serviceable, small and lightweight.
- Maximum output voltage is adjustable with an internal trim pot.
- Designed to meet MIL-STD 704 Cat. B, MIL-STD-810C and MIL-STD-461A.
| Specifications: | |
| Input Voltage: | 28 VDC nom., See Table. |
| Input Current:: | See Table. |
| Output Voltage Regulated: | See Table. Variable and Regulated |
| Output Ripple: | 8 mVpp typ. @ 25°C,25 mVpp maximum. |
| Regulation: | 2% for line, 2% load and 2% temperature. |
| Output Control: | Adjustable with external 5k ohm,1/2 W linear pot (rheostat) |
| Protection (Overvoltage): | Output voltage is limited to approximately 125% even though remote control rheostat opens or shorts or certain types of internal failures occur. |
| Protection (Overload): | Output current limit when overload exceeds 125% of rating. |
| Protection (Reverse Polarity): | Input has reverse polarity diode in shunt to open 3 to 5 Amp. input C.B.and clip negative transients |
| Efficiency: | See Table. |
| Temperature & Altitude: | -50°C to +70°C @ mounting flange and at 55,000 ft.MIL-STD-810C Temperature and Altitude,Method 504.1, Proc 1, Cat 5. |
| Size: | 1.6" H x 2.0" W x 5.0" L. 4.1 cm H x 5.1 cm W x 12.7 cm L |
| Weight: | 0.6 lbs. (272 grams). |
| Compliance: | FAA TSO-C71 |
| CHARACTERISTICS: | LT-48 (SERIES) | LT-46 (SERIES) | LT-45 (SERIES) | LT-45(D) | LT-46(C) | LT-48(D)* | LT-48(E) |
| Output (Watts) | 37.5 | 50 | 70 | 100 | 50 | 50 | 50 |
| Vin (VDC) Range lin (ADC) @ 28 VDC |
18-36 1.8 |
20-36 2.2 |
22-36 2.9 |
22-36 4.3 |
20-36 2.2 |
18-36 2.4 |
20-36 2.4 |
| Vout (VDC) Range Iout (ADC) Max. |
0-5 7.5 |
0-12 4.1 |
0-28 2.5 |
0-28 3.6 |
12 Fixed 4.2 |
0-5 10.0 |
0-5 10 |
| Efficiency (%) | 75 | 80 | 83 | 83 | 83 | 75 | 75 |
| Input Circuit Breaker | 3-5 amp | 3-5 amp | 4-5 amp | 5-6 amp | 3-5 amp | 4-5 amp | 3-5 amp |
| MODEL | MATING PLUG | RECEPTACLE |
| LT-4X( ) | MS3106E14S-5S | MS3102A14S-5P |
| LT-4X(A) | MS3126E14-5S | KPT02A14-5P |
| LT-4X(B) | MS27473T-10B-5S | JT02A-10-5P- (O14) |
| LT-45(D) | MS3106A14S-5S | MS3102A14S-5P |
| LT-46(C) | MS3126W14-5S | KPT02A14-5P |
| LT-48(D) | MS3126E14-5S | KPT02A14-5P |
| LT-48(E) | MS3126E14-5S | KPT02A14-5P |
REGULATED DC TO DC POWER CONVERTER
28Vdc to 5Vdc 7.5Amps Continuous Output Power
The LT-50 is primarily designed to power 5V incandescent lamp loads for airborne/ground instruments, navigation and other critical electronic systems.
The LT-50 converts 28Vdc input to 0-5Vdc output with up to 7.5 amps continuous output power, 37.5 watts total power.
Control circuitry design includes use of a popular PWM controller for voltage regulation and output current limit. Protection circuitry design includes low input voltage shutdown, softstart, high input voltage shutdown, output overvoltage limiting and output short circuit current limiting.
| Specifications: | |
| Input Voltage: | 28Vdc |
| Normal Range: | 18Vdc to 40Vdc |
| Current: | 1.8 Amps typical (2.0 Amp Max) @ 28Vdc input & at 7.5A full load 2.2 Amps Max at 8.2 Amp load at 28 Vdc input 0.10 Amp maximum at no load |
| Output Voltage: | 0-5Vdc regulated |
| Current: | 0-7.5 Amps Continuous 8.2 Amps Max @ 5 Vdc |
| Power: | 40 Watts maximum continuous at 5 Vdc output |
| Regulation: | 2% for line, 3% for load and 3% for temperature |
| Ripple: | 50mVpp Maximum |
| Control: | 0-5Vdc outputs are controlled by an external 5Kohm 1/2W linear pot |
| Overload(OL): | Deliver 110% output current at least for 5 minutes |
| Protection(OL): | Withstands without damage or degradation load exceeding 110% to an output short circuit. Unit delivers rated output power upon removal of the oveload (OL) condition. |
| Protection(SC): | Under the output short circuit condition, the input current folds back and the output current is limited to below 10.5 Amps. |
| Protection(OV): | Output voltage is limited to 6.5 Vdc max. |
| Efficiency: | 83% typical |
| Temperature: | -55°C to +71°C |
| Altitude: | Up to 55,000FT |
| Finish: | Gold iridite per MIL-C-5541 Class 3 |
| Weight: | 1.1 LBS (499grams) |
| Size: | 2.00 H x 2.26 W x 6.88 L inches 50.80 H x 57.40 W x 174.75 L mm. Less protrusion of connector and screw heads |