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LM3406HV-Q1 - 1.5-A Constant Current Buck Regulator

Download the LM3406HV-Q1 datasheet PDF. This datasheet also covers the LM3406 variant, as both devices belong to the same 1.5-a constant current buck regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

The LM3406 family are monolithic switching regulators designed to deliver constant currents to high power LEDs.

Key Features

  • 1 LM3406HV-Q1.
  • Automotive Grade Device.
  • AEC-Q100 Grade 1 Qualified.
  • Operating Ambient Temperature:.
  • 40°C to 125°C.
  • Integrated 2.0A MOSFET.
  • VIN Range 6V to 42V (LM3406).
  • VIN Range 6V to 75V (LM3406HV).
  • VIN Range 6V to 75V (LM3406HV-Q1).
  • True Average Output Current Control.
  • 1.7A Minimum Output Current Limit Over Temperature.
  • Cycle-by-Cycle Current Limit.
  • PWM Dimming with Dedicated Lo.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM3406-etcTI.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LM3406HV 1.5A Constant Current Buck Regulator National Semiconductor
LM3406 1.5A Constant Current Buck Regulator National Semiconductor
LM340 Three Terminal Positive Voltage Regulators Motorola Inc
LM340 3-Terminal Positive Regulators National Semiconductor
LM340 THREE TERMINAL POSITIVE FIXED VOLTAGE REGULATORS ON Semiconductor

Other Datasheets by Texas Instruments

Part Number Description
LM3406HV 1.5-A Constant Current Buck Regulator
LM3406 1.5-A Constant Current Buck Regulator
LM340 1.5-A Fixed Voltage Regulators
LM340-N 3-Terminal Positive Regulators
LM3401 Hysteretic PFET Controller

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
LM3406, LM3406HV, LM3406HV-Q1 SNVS512E – SEPTEMBER 2008 – REVISED MARCH 2014 LM3406 1.5-A, Constant Current, Buck Regulator for Driving High Power LEDs 1 FEATURES •1 LM3406HV-Q1 – Automotive Grade Device – AEC-Q100 Grade 1 Qualified – Operating Ambient Temperature: –40°C to 125°C • Integrated 2.0A MOSFET • VIN Range 6V to 42V (LM3406) • VIN Range 6V to 75V (LM3406HV) • VIN Range 6V to 75V (LM3406HV-Q1) • True Average Output Current Control • 1.