Datasheet4U Logo Datasheet4U.com

LM3406 - 1.5A Constant Current Buck Regulator

Datasheet Summary

Description

The LM3406/06HV are monolithic switching regulators designed to deliver constant currents to high power LEDs.

Ideal for automotive, industrial, and general lighting applications, they contain a high-side N-channel MOSFET switch with a current limit of 2.0A (typical) for step-down (Buck) regulators.

Features

  • Integrated 2.0A MOSFET.
  • VIN Range 6V to 42V (LM3406).
  • VIN Range 6V to 75V (LM3406HV).
  • True average output current control.
  • 1.7A Minimum Output Current Limit Over Temperature.
  • Cycle-by-Cycle Current Limit.
  • PWM Dimming with Dedicated Logic Input.
  • PWM Dimming with Power Input Voltage.
  • Simple Control Loop Compensation.
  • Low Power Shutdown.
  • Supports All-Ceramic Output Capacitors and Capacitor- less Outputs.
  • Thermal Shutdown Protection.

📥 Download Datasheet

Datasheet preview – LM3406

Datasheet Details

Part number LM3406
Manufacturer National Semiconductor
File Size 542.44 KB
Description 1.5A Constant Current Buck Regulator
Datasheet download datasheet LM3406 Datasheet
Additional preview pages of the LM3406 datasheet.

📁 Similar Datasheet

  • LM3406 - 1.5-A Constant Current Buck Regulator (Texas Instruments)
  • LM3406HV - 1.5-A Constant Current Buck Regulator (Texas Instruments)
  • LM3406HV-Q1 - 1.5-A Constant Current Buck Regulator (Texas Instruments)
  • LM340 - Three Terminal Positive Voltage Regulators (Motorola Inc)
  • LM340 - THREE TERMINAL POSITIVE FIXED VOLTAGE REGULATORS (ON Semiconductor)
  • LM340 - 1.5-A Fixed Voltage Regulators (Texas Instruments)
  • LM340-N - 3-Terminal Positive Regulators (Texas Instruments)
  • LM3401 - Hysteretic PFET Controller (Texas Instruments)
  • LM3402 - 0.5-A Constant Current Buck Regulator (Texas Instruments)
  • LM3402HV - 0.5-A Constant Current Buck Regulator (Texas Instruments)
Other Datasheets by National Semiconductor
  • LM3406HV - 1.5A Constant Current Buck Regulator
  • LM340 - 3-Terminal Positive Regulators
  • LM3401 - Quad Amplifiers
  • LM3402 - 0.5A Constant Current Buck Regulator
  • LM3402HV - 0.5A Constant Current Buck Regulator
  • LM3403 - Quad Operational Amplifiers
  • LM3404 - 1.0A Constant Current Buck Regulator
  • LM3405 - 1A Constant Current Buck Regulator

Full PDF Text Transcription

Click to expand full text
LM3406/06HV 1.5A Constant Current Buck Regulator for Driving High Power LEDs LM3406/06HV February 8, 2010 1.5A Constant Current Buck Regulator for Driving High Power LEDs General Description The LM3406/06HV are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, they contain a high-side N-channel MOSFET switch with a current limit of 2.0A (typical) for step-down (Buck) regulators. Controlled on-time with true average current and an external current sense resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series-parallel connected LED arrays of varying number and type.
Published: |