FAN4800 Overview
The FAN4800 is a controller for power-factor-corrected, switched-mode power supplies. Power Factor Correction (PFC) allows the use of smaller, lower-cost bulk capacitors, reduces power line loading and stress on the switching FETs, and results in a power supply that fully plies with IEC-1000-3-2 specifications. Intended as a BiCMOS version of the industry-standard ML4800, the FAN4800 includes circuits for the...
FAN4800 Key Features
- Low Startup Current (100µA Typical)
- Low Operating Current (2.5mA Typical)
- Low Total Harmonic Distortion, High Power Factor
- Pin-patible Upgrade for the ML4800
- Average Current, Continuous or Discontinuous Boost
- Slew Rate Enhanced Transconductance Error
- Internally Synchronized Leading-Edge PFC and
- Reduction of Ripple Current in the Storage Capacitor
- PWM Configurable for Current Mode or Voltage Mode
- Additional Folded-Back Current Limit for PWM Section
