HVLED101TR

HVLED101TR is an advanced high-power factor flyback controller with valley locking and maximum power control. This is an enhanced peak current mode controller able to control mainly high power factor (HPF) flyback or buck-boost topologies having an output power of up to 180W. Some other topologies, like a buck, boost and SEPIC could also be implemented. Primary side regulation of output voltage and Opt coupler control can be applied independently on the chip both exploiting precise regulation and very low standby power during no-load conditions. The innovative ST high-voltage technology allows to directly connect the HVLED101 to the input voltage in order to both start up the device and monitor the input voltage without the need for external components. Application includes single-stage LED drivers with a high power factor of up to 180W, two-stage LED drivers up to 200W.

• Quasi-resonant (QR) topology, primary side regulation of output voltage
• Direct opt coupler connection for secondary side regulated loop
• 800V fast high-voltage start-up, high power factor and low THD in universal and extended range
• Extremely low input power at no-load and standby conditions
• Programmable frequency fold back with valley locking for noise free operation
• Programmable maximum input power limitation for safety standard compliancy
• Programmable brownout and input overvoltage protection
• Input pin for remote protection with NTC management (threshold hysteresis and linearization)
• SOP14 package type
• Junction temperature operating range from -40 to 125°C