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UL82A - NON ISOLATED BUCK CONSTANT CURRENT LED DRIVER

General Description

UL82A is a high precision LED BUCK constant current driver chip.

The chip operates in the inductor current critical continuous mode, which is suitable for the non isolated buck LED constant current power supply with 85Vac~265Vac full range input voltage.

Key Features

  • S.
  • The integrated 500V power mos.
  • The integrated high voltage power supply function.
  • The inductor current critical continuous mode.
  • Without auxiliary winding detection and power supply.
  • The wide voltage input voltage.
  • ±5% LED output current accuracy.
  • The LED short circuit and open circuit protection.
  • The chip power supply under voltage protection.
  • The regulating function of overheating CMOS IC 3 2 1 SOT-23 (JEDEC SC-59) SOP-8 TO-92 www. uniso.

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UL82C NON ISOLATED BUCK CONSTANT CURRENT LED DRIVER
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Full PDF Text Transcription (Reference)

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UNISONIC TECHNOLOGIES CO., LTD UL82A Advance NON ISOLATED BUCK CONSTANT CURRENT LED DRIVER IC  DESCRIPTION UL82A is a high precision LED BUCK constant current driver chip. The chip operates in the inductor current critical continuous mode, which is suitable for the non isolated buck LED constant current power supply with 85Vac~265Vac full range input voltage. UL82A chip integrated 500V power switch by patent demagnetization detection technology and high voltage power supply technology, without detection and power supply for auxiliary winding, the peripheral devices are more simple, saving the cost and volume of the system.