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JH5553B - Non-isolated APFC Buck LED Driver

General Description

The JH5553B（LP/H） is a high precision non-isolated buck driver with active PFC, specially designed for universal input offline constant current LED lighting.

The driver with on-chip PFC circuit achieves high power factor and low THD.

Key Features

  • Active-PFC for High PF and Low THD.
  • No VCC and COMP capacitor.
  • Integrated current sense resister.
  • Critical Conduction Mode Operation.
  • LED Short Protection.
  • Cycle by Cycle Current Limit.
  • Thermal Regulation Function.
  • Adopts SOP-7 / DIP-8 package.

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Datasheet Details

Part number JH5553B
Manufacturer JILIN SINO
File Size 660.74 KB
Description Non-isolated APFC Buck LED Driver
Datasheet download datasheet JH5553B Datasheet

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Full PDF Text Transcription (Reference)

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R Non-isolated APFC Buck LED Driver JH5553B(LP/H) Description The JH5553B（LP/H） is a high precision non-isolated buck driver with active PFC, specially designed for universal input offline constant current LED lighting. The driver with on-chip PFC circuit achieves high power factor and low THD. Operating in critical conduction mode, the power MOSFET switching loss is reduced and the inductor is fully utilized. The JH5553B（ LP/H） integrates a 650V power MOSFET. With few external components, the LED output current can be precisely controlled. The JH5553B（LP/H） remove the VCC capacitor,COMP capacitor and RCS resistor to simplify the external BOM.