STMicroelectronics has launched an LED lamp driver—HVLED805, which will enable designers to deliver more reliable and efficient LED retrofit lamps featuring primary side current regulation.
Features and USP: The new HVLED805 integrates an 800V avalanche rugged Mosfet, which offers greater reliability. The high voltage on-chip startup circuitry allows the device to start reliably when the AC line voltage is applied to the lamp.
Its primary side regulation maintains the constant LED current that is needed to ensure consistent light output, without requiring the current sensing components and opto coupler used in conventional secondary side regulation. The elimination of these components decreases the cost and size of the LED driving circuitry and saves current sensing losses, improving overall efficiency.
Reliability is also enhanced, due to the elimination of the opto coupler in the secondary side, whose degradation can significantly decrease the mean-time-between-failure of the lamp.
For further details: STMicroelectronics Pvt Ltd, Plot No 1, Knowledge Park III, Greater Noida; Ph: +91-0120-4003001; Website: www.stcom
