40V Synchronous Constant Current LED Driver BLL2770

◉ BLL2770 is a 40V synchronous constant current buck LED driver, with 55mΩ High-Side and 20mΩ Low-Side MOSFETs integrated, minimal external component requirement and high efficiency, ideal for car lamp applications.

◉ Adjustable Output Current up to 3.5A with ±3% accuracy. RISEN resistor is used to set the output current.

◉ No external compensation component needed. 135kHz switching frequency with jitter function improves EMI performance. Internal thermal regulation prevents the chip from overheating without shutting down the output.
◉ Input under voltage lock-out protection disable the chip when input voltage lower than 7V.