NXP Semiconductors Lighting, Ballast Controllers UBA2070TD-T

The UBA2070TD-T is a high-voltage integrated circuit designed for driving electronically ballasted Cold Cathode Fluorescent Lamps (CCFL) at mains voltages up to 277V (RMS). It operates using a 650V Bipolar CMOS DMOS power logic process and provides essential functions such as driving two discrete MOSFETs, level-shifting, oscillation, lamp voltage monitoring, current control, and various protection features. Key specifications include a maximum high-side supply voltage of 600V, an oscillator start voltage range of 12.4V to 13.6V, and a start-up current of 170mA to 200mA. The device supports a bridge frequency range from 38.9kHz to 110kHz, with a typical operating frequency of 100kHz. It also includes protections against lamp failures and capacitive mode, making it suitable for a broad range of backlight inverter applications. Engineers considering this product should evaluate its high voltage capabilities and integrated features to determine its suitability for their specific lighting projects.