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RT7306 - Primary-Side Regulation Dimmable LED Driver Controller

Description

The RT7306 is a constant current LED driver with active power factor correction.

It supports high power factor across a wide range of line voltages, and it drives the converter in the Quasi-Resonant (QR) mode to achieve higher efficiency.

Features

  • Tight LED Current Regulation.
  • No Opto-Coupler and TL431 Required.
  • Power Factor Correction (PFC).
  • Compatible with Analog Dimming.
  • Built-in HV Start-up Device.
  • Quasi-Resonant.
  • Maximum/Minimum Switching Frequency Clamping.
  • Maximum/Minimum on-Time Limitation.
  • Wide VDD Range (up to 34V).
  • THD Optimization.
  • Input-Voltage Feed-Forward Compensation.
  • Multiple Protection Features.
  • LED Open-Circuit Protection.
  • LED Short-Circuit Protectio.

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Datasheet Details

Part number RT7306
Manufacturer Richtek
File Size 738.97 KB
Description Primary-Side Regulation Dimmable LED Driver Controller
Datasheet download datasheet RT7306 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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RT7306 Primary-Side Regulation Dimmable LED Driver Controller with Active-PFC General Description The RT7306 is a constant current LED driver with active power factor correction. It supports high power factor across a wide range of line voltages, and it drives the converter in the Quasi-Resonant (QR) mode to achieve higher efficiency. By using Primary Side Regulation (PSR), the RT7306 controls the output current accurately without a shunt regulator and an opto-coupler at the secondary side, reducing the external component count, the cost, and the volume of the driver board. RT7306 is compatible with analog dimming. The output current can be modulated by the DIM pin.
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