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LM3404 - 1.0A Constant Current Buck Regulator

Datasheet Summary

Description

The LM3404/04HV are monolithic switching regulators designed to deliver constant currents to high power LEDs.

Features

  • Integrated 1.2A NFET VIN Range 6V to 42V (LM3404) VIN Range 6V to 75V (LM3404HV) 1.2A Output Current Over Temperature 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 n Thermal shutdown protection n SO-8 Package n n n n n n n n.

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Datasheet preview – LM3404

Datasheet Details

Part number LM3404
Manufacturer National Semiconductor
File Size 474.30 KB
Description 1.0A Constant Current Buck Regulator
Datasheet download datasheet LM3404 Datasheet
Additional preview pages of the LM3404 datasheet.

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www.DataSheet4U.com LM3404/04HV 1.0A Constant Current Buck Regulator for Driving High Power LEDs ADVANCE INFORMATION October 2006 LM3404/04HV 1.0A Constant Current Buck Regulator for Driving High Power LEDs General Description The LM3404/04HV 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 NFET switch with a minimum overtemperature current limit of 1.2A for step-down (Buck) regulators. Hysteretic control with controlled on-time coupled with an external resistor allow the converter output voltage to adjust as needed to deliver constant current to series and series-parallel connected LED arrays of varying number and type.
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