STMicroelectronics HVLED101TR, Flyback Controller 14-Pin, SOP-14 [HVLED101TR]; 261-4743

Advanced high power factor flyback controller with valley locking and maximum power control

The STMicroelectronics enhanced peak current mode controller able to control mainly high power factor (HPF) fly back or buck-boost topologies having an output power up to 180 W. Primary Side Regulation of output voltage and Optocoupler control can be applied independently on the chip both exploiting precise regulation and very low standby power during no-load conditions.

• Quasi-Resonant (QR) topology
• Primary side regulation of output voltage
• Direct optocoupler connection for secondary side regulated loop
• High power factor and low THD in universal and extended range (PF > 0.9 and THD < 5% @ full load and < 10% @ 1/3 load)
• 800 V fast high-voltage startup
• Extremely low input power at no-load and standby conditions
• Integrated input voltage detection for high power factor capabilty, DC rail detection and protection triggering
• Programmable frequency foldback with valley locking for noise free operation
• Programmable maximum input power limitation for safety standard compliancy
• Programmable brownout and input overvoltage protection
• Latch-free device guarantee by smart Auto Restart Timer (ART)
• Input pin for remote protection with NTC management (threshold hysteresis and linearization)