Description
The Supertex HV9904 is a second order PWM controller designed to provide a constant average current output or a constant average voltage output from an input of 10V to 400V DC or directly from rectified AC mains up to 280V.
Features
- Eliminates High Voltage Input Electrolytic Capacitor Smallest and Most Reliable Off-Line Solution Constant Current or Constant Voltage Mode Control Can be Operated Directly from Rectified AC Mains 10V to 400V Input Range Internal Regulator 1.5mA Operating Supply Current PLL Based Loop Control with Soft Start On-Time Varies Inversely with Input Voltage Frequency Varies with Load 2.5V Differential Sense Recommended for.