The Hi2601B LED driver with SOP8 ROHS from Hichips is a constant current dimming LED driver, designed to drive a single LED in constant current from a high-voltage power supply. It features a wide input voltage range from 4.5 VDC to 40 VDC and a PWM dimming of 1kHz. Its maximum rated output current is 150mA and efficiency up to 96.5%. The device has an internal thermal protection loop and is suitable for applications such as LED lighting, panel lighting, LED billboards, and more.