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FAN7930B: Power Factor Controller (PFC), CrCM, Programmable OVP

Datasheet: Critical Conduction Mode PFC Controller
Rev. 2 (1440kB)
Product Overview
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The FAN7930B is an active power factor correction (PFC) controller for boost PFC applications that operate in critical conduction mode (CRM). It uses a voltagemode 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.
FAN7930B provides over-voltage protection, openfeedback protection, over-current protection, inputvoltage- absent detection, and under-voltage lockout protection. 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 FAN7930B can be disabled if the INV pin voltage is lower than 0.45V and the operating current decreases to a very low level. Using a new variable on-time control method, THD is lower than the conventional CRM boost PFC ICs.
Features
 
  • Additional OVP Detection Pin
  • Input Voltage Absent Detection Circuit
  • Maximum Switching Frequency Limitation
  • Internal Soft-Start and Overshoot-less Control
  • Internal Total Harmonic Distortion (THD) Optimizer
  • Precise Adjustable Output Over-Voltage Protection
  • Open-Feedback Protection and Disable Function
  • Zero Current Detector
  • 150 µs Internal Startup Timer
  • MOSFET Over-Current Protection
  • 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
Applications
  • LCD Monitor
  • LCD TV
  • LED TV
  • CRT TV
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
FAN7930BMX Obsolete
Pb-free
Halide free
FAN7930B SOIC-8 751EB 1 260 Tape and Reel 2500  
FAN7930BMX-G Active
Pb-free
Halide free
FAN7930B SOIC-8 751EB 1 260 Tape and Reel 2500 $0.2933
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 8 to 12

Product
Description
Pricing ($/Unit)
Compliance
Status
PFC Mode
Frequency Operation
Control Mode
Topology
fSW Typ (kHz)
VCC Max (V)
Drive Cap. (mA)
UVLO (V)
Latch
UVP
Inhibition
Package Type
FAN7930BMX-G  
 $0.2933 
Pb
H
 Active   
CrCM/BCM
Variable
Voltage Mode
Step-Up
Variable
24
220 / 220
12
No
No
No
SOIC-8
Case Outlines
751EB   
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