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RT7339P - Active-PFC Constant-Voltage Controller

Description

The RT7339P is a constant voltage controller with the active Power Factor Correction (PFC), which is designed to meet the line current harmonic regulations.

It drives the converter in Quasi-Resonant (QR) mode to achieve higher efficiency.

Features

  • Tight Voltage Regulation.
  • Power Factor Correction.
  • THD Optimization (THD < 10%).
  • Quasi-Resonant (QR) Operation.
  • Fast Startup.
  • Fast Dynamic Response.
  • Ultra-Low Standby Power Consumption.
  • Soft Drive for the Better EMI Performance.
  • Wide Supply Voltage Range (Up to 34V).
  • Maximum Frequency Limitation (117kHz).
  • Multiple Protection Features.
  • Output Over Voltage Protection.
  • Output Short-Circuit Protection.
  • Input Under / Over Voltage.

📥 Download Datasheet

Datasheet Details

Part number RT7339P
Manufacturer Richtek
File Size 796.39 KB
Description Active-PFC Constant-Voltage Controller
Datasheet download datasheet RT7339P Datasheet

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Full PDF Text Transcription

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RT7339P Active-PFC Constant-Voltage Controller with Primary-Side Regulation General Description The RT7339P is a constant voltage controller with the active Power Factor Correction (PFC), which is designed to meet the line current harmonic regulations. It drives the converter in Quasi-Resonant (QR) mode to achieve higher efficiency. By using the Primary-Side Regulation (PSR), the RT7339P controls the output voltage accurately without a shunt regulator and an opto-coupler at the secondary side, reducing the external component counts, the costs, and the volume of the driver board. The RT7339P is compatible with the external depletion N-MOSFET to achieve fast startup and ultra-low standby power consumption.
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