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 Protection:
(Overvoltage)		 Output voltage is limited toapproximately 125% of rating eventhough remote control rheostat opens or internal failure occurs.
Output Voltage: Adjustable with external 5K ohm,1/2 W rheostat or voltage 0-5 VDC. Temperature: -55C to +71C (sufficient cooling required @ +71'C ambient)
Regulation: 2% for line, 2% load and 2.5% temperature. Common mode isolation = 40 db. Altitude: 55,000 ft.
Output Ripple: 25 mVp-p or less. Size: 6.5" L x 6.7" W x 2.4" H.
16.5 cm L x 17 cm W x 6 cm H
Protection:
(Overload)		 Input and output current pulse when overload exceeds approximately 125% of rating. Weigt: 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

EXTERNAL WIRING & PHYSICAL SIZE
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