The A9912M8VR from AiT Semiconductor is a High-Voltage AC-DC Buck Control IC that has been designed for efficient control of LED current in high-brightness applications. It requires an input voltage of 8 - 450 V. This LED driver IC offers versatile high-voltage LED current regulation and with its PWM dimming input, it allows for precise control of LED brightness levels. It accepts external control signals with a duty ratio ranging from 0 to 100% and frequencies of up to several kHz. The LED driver IC provides intelligent temperature compensation for LED current via its RNTC pin, which accepts line dimming input voltage range from 0-250 mV. It ensures consistent LED performance even in varying thermal conditions, making it an ideal choice for demanding applications. This LED driver IC is available in a surface-mount package that measures 5.1 x 4 x 1.75 mm and is ideal for DC/DC or AC/DC LED driver applications, RGB backlighting LED driver, general purpose constant current source, signal, and decorative LED lighting applications.