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HM6281 - 400KHz 32V 2A Switching Current Boost LED Constant Current Driver

General Description

The HM6281 regulator is fixed frequency PWM Boost (step-up) LED constant current driver, capable of driving Series 1W LED units with excellent line and load regulation.

Key Features

  • n Wide 3.6V to 24V Input Voltage Rang n 0.22V Constant Current Sense Voltage n Directly drive 3~8 Series 1W LED n Fixed 400KHz Switching Frequency n Max. 2A Switching Current Capability n Up to 92% efficiency n Excellent line and load regulation n EN PIN TTL shutdown capability n Internal Optimize Power MOSFET n Built in LED Open Protection n Built in Soft-Start Function n Built in Frequency Compensation n Built in Thermal Shutdown Function n Built in Current Limit Function n Available in SOP8 p.

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Datasheet Details

Part number HM6281
Manufacturer H&M Semiconductor
File Size 490.50 KB
Description 400KHz 32V 2A Switching Current Boost LED Constant Current Driver
Datasheet download datasheet HM6281 Datasheet

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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.

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400KHz 32V 2A Switching Current Boost LED Constant Current Driver HM6281 Features n Wide 3.6V to 24V Input Voltage Rang n 0.22V Constant Current Sense Voltage n Directly drive 3~8 Series 1W LED n Fixed 400KHz Switching Frequency n Max.