Datasheet Summary
Two-String Step-up Dimmable LED Driver
Description
The BP1618 is a two-string step-up LED driver for wide input/output voltage range with a boost power switch integrated inside. The BP1618 employs peak current mode, fixed frequency architecture to provide robust operation with minimum 3V input supply. The switching frequency is programmable by an external frequency setting resistor.
The output current is set through external current sensing resistors and the tolerance is within ± 3%. The BP1618 receives PWM signal via PWM1/PWM2 directly and regulate output current without any flicker. The minimum dimming level is 1% to achieve accurate colour temperature control.
The BP1618 has...