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LC5581LS - 1 Converter High Power Factor LED Driver ICs

This page provides the datasheet information for the LC5581LS, a member of the LC5581AS 1 Converter High Power Factor LED Driver ICs family.

Datasheet Summary

Description

The LC5581AS and LC5581LS are quasi-resonant LED driver ICs.

The ICs can also operate in PWM mode.

The ICs support isolated and non-isolated buck circuits and buck-boost converters.

Features

  • the ICs can provide more costeffective power supply systems with fewer external components. Features.
  • 800 V High Voltage Built-in Startup Circuit.
  • Analog Dimming Function.
  • High Power Factor by Average Current Control.
  • Soft Start Function.
  • Shorter Time from Startup to LED Lighting.
  • COMP Pin Fast Charging Function.
  • Bias Assist Function that Includes Two Types that are Activated at Different Voltage Levels (Smaller Capacitance of the VCC Pin).
  • Standb.

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Datasheet preview – LC5581LS

Datasheet Details

Part number LC5581LS
Manufacturer Sanken
File Size 737.39 KB
Description 1 Converter High Power Factor LED Driver ICs
Datasheet download datasheet LC5581LS Datasheet
Additional preview pages of the LC5581LS datasheet.

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Full PDF Text Transcription

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1 Converter High Power Factor LED Driver ICs LC5581AS/LS Data Sheet Description Package The LC5581AS and LC5581LS are quasi-resonant LED driver ICs. The ICs can also operate in PWM mode. The ICs support isolated and non-isolated buck circuits and buck-boost converters. The ICs provide the systems that can comply with the harmonics standard (IEC61000-3-2 Class C) in all conditions, including a light load condition. These systems, moreover, can be achieved by 1 converter system that requires no input electrolytic capacitor. The ICs employ the average current and quasi-resonant controls: the average current control realizes high power factors, whereas the quasi-resonant control contributes to high efficiency and low noise.
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