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FAN7528 - Critical Conduction Mode PFC Controller

Datasheet Summary

Description

The FAN7528 is an active power factor correction (PFC) controller for boost PFC applications that operates in critical conduction mode (CRM).

It uses voltage mode PWM that compares an internal ramp signal with the error amplifier output to generate MOSFET turn-off signal.

Features

  • Low Total Harmonic Distortion (THD).
  • Dual Output Voltage Control.
  • Precise Adjustable Output Over-Voltage Protection.
  • Open-Feedback Protection and Disable Function.
  • Zero Current Detector.
  • 160µs Internal Start-up Timer.
  • MOSFET Over-Current Protection.
  • Under-Voltage Lockout with 3.5V Hysteresis.
  • Low Start-up (40µA) and Operating Current (1.5mA).
  • Totem-Pole Output with High State Clamp.
  • ±400mA Peak Ga.

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Datasheet preview – FAN7528

Datasheet Details

Part number FAN7528
Manufacturer Fairchild Semiconductor
File Size 2.56 MB
Description Critical Conduction Mode PFC Controller
Datasheet download datasheet FAN7528 Datasheet
Additional preview pages of the FAN7528 datasheet.

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Full PDF Text Transcription

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FAN7528 Dual-Output, Critical Conduction Mode PFC Controller February 2007 FAN7528 Dual-Output, Critical Conduction Mode PFC Controller Features „ Low Total Harmonic Distortion (THD) „ Dual Output Voltage Control „ Precise Adjustable Output Over-Voltage Protection „ Open-Feedback Protection and Disable Function „ Zero Current Detector „ 160µs Internal Start-up Timer „ MOSFET Over-Current Protection „ Under-Voltage Lockout with 3.5V Hysteresis „ Low Start-up (40µA) and Operating Current (1.5mA) „ Totem-Pole Output with High State Clamp „ ±400mA Peak Gate Drive Current „ 8-Pin DIP or 8-Pin SOP Description The FAN7528 is an active power factor correction (PFC) controller for boost PFC applications that operates in critical conduction mode (CRM).
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