Datasheet4U Logo Datasheet4U.com

LM3433 - Common Anode Capable High Brightness LED Driver

General Description

The LM3433 is an adaptive constant on-time DC/DC buck (step-down) constant current controller (a true current source).

The LM3433 provides a constant current for illuminating high power LEDs.

Key Features

  • 1.
  • 2 Operating Input Voltage Range of -9V to -14V w. r. t. LED Anode.
  • Control Inputs Referenced to the LED Anode.
  • Output Current Greater than 6A.
  • Greater than 30kHz PWM Frequency Capable.
  • Negative Output Voltage Capability Allows LED Anode to be Tied Directly to Chassis for Maximum Heat Sink Efficacy.
  • No Output Capacitor Required.
  • Up to 1MHz Switching Frequency.
  • Low IQ, 1mA Typical.
  • Soft Start.
  • Adaptive Progra.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
LM3433 Common Anode Capable High Brightness LED Driver National Semiconductor
LM343 High Voltage Operational Amplifier National Semiconductor
LM3430 high voltage low-side N-channel MOSFET controller National Semiconductor
LM3431 3-Channel Constant Current LED Driver National Semiconductor
LM3431A 3-Channel Constant Current LED Driver National Semiconductor

Other Datasheets by Texas Instruments

Part Number Description
LM3430 Boost Controller
LM3431 3-Channel Constant Current LED Driver
LM3432 6-Channel Current Regulator
LM3432B 6-Channel Current Regulator
LM3434 Common Anode Capable High Brightness LED Driver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LM3433 www.ti.com SNVS535C – OCTOBER 2007 – REVISED MAY 2013 LM3433 Common Anode Capable High Brightness LED Driver with High Frequency Dimming Check for Samples: LM3433 FEATURES 1 •2 Operating Input Voltage Range of -9V to -14V w.r.t.