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L6562DTR

PFC controller, transition-mode, 1.5A gate, SOIC-8

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Manufacturer Part：

L6562DTR

Package：

SOIC-8 (4.9x3.9mm)

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Description

Product Overview

The L6562DTR from ST is a transition-mode power factor correction controller with 1.5A gate drive, multiplier input, and overvoltage protection in SOIC-8 for PFC pre-regulators.

Key Specifications

Package SOIC-8 (4.9×3.9mm)

Features

  • See datasheet for complete specifications
  • Industry-standard package

Applications

  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Power management

The L6562DTR from ST is a transition-mode power factor correction controller with 1.5A gate drive, multiplier input, and overvoltage protection in SOIC-8 for PFC pre-regulators.

The L6562DTR is a transition-mode (boundary conduction mode) Power Factor Correction controller in SOIC-8 from ST. It controls a boost converter to shape the input current to follow the input voltage waveform, achieving power factor greater than 0.99. The multiplier block (MULT pin) senses the rectified line voltage and multiplies it by the error amplifier output (COMP) to generate a sinusoidal current reference. The MOSFET turns on when the ZCD pin detects the inductor current has returned to zero (via auxiliary winding). The MOSFET stays on until the current sense (CS) voltage reaches the multiplier output, then turns off. This natural zero-current switching eliminates reverse recovery losses in the boost diode and reduces EMI. Transition-mode operation limits this topology to under 300W applications due to high peak-to-average current ratios.

Pin Name Type Function
1 INV Input Error amplifier inverting input (from output divider)
2 COMP I/O Error amplifier output (compensation network)
3 MULT Input Multiplier input (sensed input voltage for PFC)
4 CS Input Current sense (from source resistor)
5 ZCD Input Zero-current detection (auxiliary winding)
6 GND Power Ground reference
7 GD Output Gate drive output (to MOSFET gate)
8 VCC Power Supply voltage (10.3-22V)
  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Power management
    • Manufacturer Part Number Package Notes
    STMicroelectronics L6564DTR SOIC-8 Enhanced version, higher precision
    Infineon ICE2PCS01G DIP-8 Transition-mode PFC controller
    Texas Instruments UC3854DW SOIC-16 Average current-mode PFC
    onsemi MC33262DR2G SOIC-8 Transition-mode PFC controller
    Infineon ICE3PCS03G DIP-8 CCM PFC controller
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    Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
     

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