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UPSL101 - PRIMARY SIDE CONTROL LED LIGHTING DRIVER

General Description

The UTC UPSL101 is a primary side control offline LED lighting controller which can achieve high power factor and accurate LED current for an isolate lighting application in a single converter.

The UTC UPSL101 can control the LED current accurately from the primary side information.

Key Features

  • S SOP-8.
  • Primary-side control with single stage PFC topology.
  • Transition mode (TM) operation to achieve high efficiency.
  • Minimized BOM count.
  • Cycle-by-cycle current limiting (OCP).
  • Selectable threshold of OCP.
  • High current accuracy.
  • VCC over voltage protection.
  • Analog multiplier for power factor correction.
  • Over-temperature protection.
  • Output over voltage protection.
  • LED open circuit protection.
  • LED short circuit protection.
  • Sof.

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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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UNISONIC TECHNOLOGIES CO., LTD UPSL101 Preliminary LINEAR INTEGRATED CIRCUIT ISOLATED, PRIMARY SIDE CONTROL LED LIGHTING DRIVER WITH ACTIVE PFC  DESCRIPTION The UTC UPSL101 is a primary side control offline LED lighting controller which can achieve high power factor and accurate LED current for an isolate lighting application in a single converter. The UTC UPSL101 can control the LED current accurately from the primary side information. It can significantly simplify the LED lighting system design by eliminating the secondary side feedback components and the opto-coupler. And it integrates power factor correction function and works in transition mode for reducing the MOSFET switching losses. The LED current can be adjusted externally by the sense resistor RCS at CS pin.