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LM3409HV Datasheet Pfet Buck Controller

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM3409 / LM3409HV PFET Buck Controller for High Power LED Drives ..

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

General Description

The LM3409/09HV are P-channel MosFET (PFET) controllers for step-down (buck) current regulators.

They offer wide input voltage range, high-side differential current sense with low adjustable threshold voltage, fast output enable/disable function and a thermally enhanced eMSOP-10 package.

These

Key Features

  • combine to make the LM3409/09HV ideal for use as constant current sources for driving LEDs where forward currents up to 5A are easily achievable. The LM3409/09HV uses Constant Off-Time (COFT) control to regulate an accurate constant current without the need for external control loop compensation. Analog and PWM dimming are easy to implement and result in a highly linear dimming range with excellent achievable contrast ratios. Programmable UVLO, low-power shutdown, and thermal shutdown complete t.

LM3409HV from other manufacturers

See all manufacturers

Brand Logo Part Number Description Other Manufacturers
Texas Instruments Logo LM3409HV P-FET Buck Controller Texas Instruments
Texas Instruments Logo LM3409HV-Q1 P-FET Buck Controller Texas Instruments
Texas Instruments Logo LM3409 P-FET Buck Controller Texas Instruments
Texas Instruments Logo LM3409-Q1 P-FET Buck Controller Texas Instruments

More Datasheets from National Semiconductor (now Texas Instruments)

Part Number Description
LM3409 PFET Buck Controller
LM3409Q PFET Buck Controller
LM3409QHV PFET Buck Controller
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

LM3409HV Distributor