BP5778F is a dual-channel dimmable LED linear constant current driver chip, mainly used to drive various dimmable light sources and lamps with mains input. Based on linear constant current technology, BP5778F can eliminate magnetic elements, helping LED drivers achieve small size, long service life and comply with EMI standards. BP5778F supports PWM dimming signals and can be used with common dimming modules to achieve dimming functions. BP5778F has an over-temperature regulation function. When the input voltage is too high or the LED current is too large and causes the chip temperature to be too high, the output current will be reduced.