FAN501A
Description
The advanced PWM controller, FAN501A, simplifies isolated power supply design that requires CC regulation of the output. The output current is precisely estimated with only the information in the primary side of the transformer and controlled with an internal pensation circuit, removing the output current-sensing loss and eliminating external CC control circuitry.
Key Features
- WSaver® Technology Provides Ultra-Low Standby Power Consumption for Energy Star’s 5-Star Level (<30 mW)
- High Power Density and High Conversion Efficiency in CCM pact Charger Applications
- Frequency Hopping to Reduce EMI Noise
- High-Voltage Startup
- Precise Maximum Output Power Limit by CC Regulation through External Resistor Adjustment
- Peak-Current-Mode Control with Slope pensation to Avoid Sub-Harmonic Oscillation
- Programmable Over-Temperature Protection with Latch Mode through External NTC Resistor
- Two-Level UVLO Reduces Input Power in Output Short Situation
- VS Over-Voltage Protection with Latch Mode
- VDD Over-Voltage Protection with Auto Restart
