LT-352, LT-3100
REGULATED DC TO DC POWER CONVERTER
MULTIPLE OUTPUT LIGHT DIMMER
The LT-3XX Series is a pulse width-modulated DC to DC converter that provides regulated multiple output power. The converter transforms an unregulated 28 VDC to a regulated and adjustable DC output via a remote control potentiometer or voltage for voltage controlled models. The Model LT-3XX Series is primarily designed to control the light intensity of incandescent bulbs in lighting systems. For special orders any three combinations of LT-52A, LT-53, LT-70, LT-73, LT-100 and LT-103 can be supplied.
Features:
- State of the art design for regulation and positive logic for output overvoltage protection.
- Other LT-3XX Series available in various output voltage and power ratings in the same package, or special units can be provided for various output combinations.
- Maximum output voltage is adjustable with an internal trim pot.
- Designed to meet various applicable portions MIL-STD 704 notice 3, MiL-STD-202 and MIL-T-5422F class IA.
- The Model LT-3XX Series is serviceable, small and lightweight (42 watts per pound and 1.7 watts per cubic inch)
Specifications
Input Voltage
28 VDC nom., 20 to 40 VDC
28 VDC nom., 20 to 40 VDC
Output Voltage
Adjustable with external 5K ohm,1/2 W rheostat or voltage 0-5 VDC.
Adjustable with external 5K ohm,1/2 W rheostat or voltage 0-5 VDC.
Regulation
2% for line, 2% load and 2.5% temperature. Common mode isolation = 40 db.
2% for line, 2% load and 2.5% temperature. Common mode isolation = 40 db.
Output Ripple
25 mVp-p or less.
25 mVp-p or less.
Protection: (Overload)
Input and output current pulse when overload exceeds approximately 125% of rating.
Input and output current pulse when overload exceeds approximately 125% of rating.
Protection: (Overvoltage)
Output voltage is limited toapproximately 125% of rating eventhough remote control rheostat opens or internal failure occurs.
Output voltage is limited toapproximately 125% of rating eventhough remote control rheostat opens or internal failure occurs.
Temperature
-55C to +71C (sufficient cooling required @ +71'C ambient)
-55C to +71C (sufficient cooling required @ +71'C ambient)
Altitude
55,000 ft.
55,000 ft.
Size
6.5" L x 6.7" W x 2.4" H.
16.5 cm L x 17 cm W x 6 cm H
6.5" L x 6.7" W x 2.4" H.
16.5 cm L x 17 cm W x 6 cm H
Weight
3.6 lbs. (1634 grams).
3.6 lbs. (1634 grams).
| LT-3XX SERIES | LT-352 | LT-370 | LT-3100 |
| LT-353 | LT-373 | LT-3103 | |
| Max. Power Rating (watts) | 150 | 200 | 300 |
| Input Voltage (VDC) | 20 to 40 | 20 to 40 | 20 to 40 |
| Input Current (ACD) @ FIL * 20 VDC IN * 28 VDC IN |
11.8 7.2 |
12.8 9.2 |
17.8 12.8 |
| Output Voltages DC (three) | 0 to 5 | 0 to 12 | 0 to 28 |
| Output Current (ADC) Total | 30 | 17 | 11 |
| Efficiency | 75 | 78 | 84 |
