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LM3404HV Datasheet 1-a Constant Current Buck Led Driver

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3404, LM3404HV SNVS465G – OCTOBER 2006 – REVISED SEPTEMBER 2015 LM3404xx 1-A Constant Current Buck Regulator for Driving High Power.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The LM3404 and LM3404HV devices are monolithic switching regulators designed to deliver constant currents to high power LEDs.

Ideal for automotive, industrial, and general lighting applications, these devices contain a high-side N-channel MOSFET switch with a current limit of 1.5-A (typical) for step-down (Buck) regulators.

Hysteretic controlled on-time and an external 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.

Key Features

  • 1 Integrated 1-A MOSFET.
  • VIN Range 6 V to 42 V (LM3404).
  • VIN Range 6 V to 75 V (LM3404HV).
  • 1.2-A Output Current Overtemperature.
  • Cycle-by-Cycle Current Limit.
  • No Control Loop Compensation Required.
  • Separate PWM Dimming and Low Power Shutdown.
  • Supports All-Ceramic Output Capacitors and Capacitor-less Outputs.
  • Thermal Shutdown Protection.
  • SOIC-8 Package, SO PowerPAD™-8 Package 3.

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