MR16-PAR38LED-REF Reference Design

Texas Instruments

MR16 or PAR38 LED Bulb Reference Design w/ LM3429 LED Driver and Nuventix SynJet® Coolers

Description

The demonstration board includes a LM3429 device that converts 9VDC to 36VDC input to a 700mA constant current output designed to operate a load of three to four series LEDs. This reference design is ideal for any LED application that runs off of a 12V or 24V rail.  This is a 4-layer board having input voltage and ground as the two internal planes. The design has been made assuming there are analog dimming requirements.This design works with the Nuventix SynJet  module which serves as the cooling element for an LED luminaire or bulb replacement for the standard MR16: PAR20: PAR25: PAR30 or PAR38 form factors

Features
  • InputsOutputs #1VinMin = 9VVout1 = 12 LEDsVinMax = 36VIout1 = 700 mA(IC controls up to 1A)The LM3429 buck-boost LED driver:Allows input voltage capability of 9V-36V to accommodate 12V and 24V voltage rails for a variety of applicationsDrives 1-12 series connected LEDs up to 1AEnables analog dimming capability of 0 mA to 1A with a potentiometer or 1V to 10V dimmingThe LM2842 voltage regulator provides a regulated 5V power supply to the SynJet actuator 
Applications
Product Categories
  • Power management

Parts

Part Number Name Companion Part
LM2842 LM2842 Buy Datasheet
LM2842-Q1 LM2842-Q1 Buy Datasheet
LM3429 LM3429 Buy Datasheet
LM3429-Q1 LM3429-Q1 Buy Datasheet