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LM3405 Datasheet 1.6-mhz 1-a Constant Current Buck Led Driver

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & munity LM3405 SNVS429C – OCTOBER 2006 – REVISED DECEMBER 2016 LM3405 1.

General Description

The LM3405 is a 1-A constant current buck LED driver designed to provide a simple, high efficiency solution for driving high power LEDs.

With a 0.205-V reference voltage feedback control to minimize power dissipation, an external resistor sets the current as required for driving various types of LEDs.

Switching frequency is internally set to 1.6 MHz, allowing small surface mount inductors and capacitors to be used.

Key Features

  • 1 VIN Operating Range of 3 V to 15 V.
  • Drives up to 5 High-Brightness LEDs in Series at 1A.
  • Thin SOT-6 Package.
  • 1.6-MHz Switching Frequency.
  • EN/DIM Input for Enabling and PWM Dimming of LEDs.
  • 300-mΩ NMOS Switch.
  • 40-nA Shutdown Current at VIN = 5 V.
  • Internally Compensated Current-mode Control.
  • Cycle-by-Cycle Current Limit.
  • Input Voltage UVLO.
  • Overcurrent Protection.
  • Thermal Shutdown 2 Applic.

LM3405 from other manufacturers

See all manufacturers

Brand Logo Part Number Description Other Manufacturers
National Semiconductor Logo LM3405 1A Constant Current Buck Regulator National Semiconductor

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