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FL7930B: Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting

Datasheet: FL7930B - Critical Conduction Mode PFC Controller
Rev. A (1785kB)
Product Overview
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The FL7930B is an active power factor correction (PFC) controller for boost PFC applications that operate in critical conduction mode (CRM). It uses a voltage-mode PWM that compares an internal ramp signal with the error amplifier output to generate a MOSFET turn-off signal. Because the voltage-mode CRM PFC controller does not need rectified AC line voltage information, it saves the power loss of an input voltage sensing network necessary for a current-mode CRM PFC controller.
FL7930B provides over-voltage protection (OVP), open-feedback protection, over-current protection (OCP), input-voltage-absent detection, and under-voltage lockout protection (UVLO). The additional OVP pin can be used to shut down the boost power stage when output voltage exceeds OVP level due to the resistors that are connected at INV pin are damaged. The FL7930B can be disabled if the INV pin voltage is lower than 0.45 V and the operating current decreases to a very low level. Using a new variable on-time control method, total harmonic distortion (THD) is lower than in conventional CRM boost PFC ICs.
Features
 
  • Additional OVP Detection Pin
  • VIN-Absent Detection
  • Maximum Switching Frequency Limitation
  • Internal Soft-Start and Startup without Overshoot
  • Internal Total Harmonic Distortion (THD) Optimizer
  • Precise Adjustable Output Over-Voltage Protection
  • Open-Feedback Protection and Disable Function
  • Zero Current Detector (ZCD)
  • 150 μs Internal Startup Timer
  • MOSFET Over-Current Protection (OCP)
  • Under-Voltage Lockout with 3.5 V Hysteresis
  • Low Startup and Operating Current
  • Totem-Pole Output with High State Clamp
  • +500/-800 mA Peak Gate Drive Current
  • 8-Pin, Small-Outline Package (SOP)
Applications
  • Lighting
Technical Documentation & Design Resources
Application Notes (9) Package Drawings (1)
Data Sheets (1)  
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
FL7930BMX-G Lifetime
Pb-free
Halide free
FL7930B SOIC-8 751EB 1 260 Tape and Reel 2500 $0.3453
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2020-09-02 00:00) : 2,500
Case Outlines
751EB   
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