Design contains obsolete parts

LM3433SQ-36AEV: 30A @ 4.3V Max, 12V in

Summary

The LM3433 is an adaptive constant on-time DC/DC buck constant current controller designed to drive a high brightness LEDs (HB LED) at high forward currents. It is a true current source that provides a constant current with constant ripple current regardless of the LED forward voltage drop.

The board can accept an input voltage ranging from -9V to -14V w.r.t. GND. The output configuration allows the anodes of multiple LEDs to be tied directly to the ground referenced chassis for maximum heat sink efficacy when a negative input voltage is used.

Specifications

Manufacturer Texas Instruments
Category Lighting
Sub-Category LED Drivers - DC In
Eval Board Board not Stocked
Voltage In -9 ~ -14 V
Topology Step Down
Current Out 30 A
Voltage Out (Max) 4.3 V
Outputs and Type 1 Non-Isolated
Efficiency @ Conditions >94%, 12V in, 4.3V @ 18 A
Features Dimming Control
Shutdown, Enable, Standby
Soft Start
Thermal Protection
Under Voltage Protection, Brown-Out
Switching Frequency - Not Given
Component Count + Extras 91 + 11
Design Author Texas Instruments
Application / Target Market Automotive
Main I.C. Base Part LM3433
Date Created By Author
Date Added To Library 2011-03

Support Documents & Media

LM3433SQ-36AEV - User Guide - App Note AN-1937 LM3433 - Datasheet Ultra Librarian Software:CAD Symbols and Footprints (Zip File) TI's CAD/CAE Symbols and Footprint Search

Media

LM3433SQ_36AEV_Schematic.JPG LM3433SQ_36AEV_Board.JPG