XRP7618
DESCRIPTION
The XRP7618 is an 8-channel, high voltage, constant-current sink LED driver capable of driving up to 100m A current per channel. With outputs rated at 30V, the XRP7618 can control strings of multiple LEDs with better than ±1.5% channel to channel current matching. LED channel current is programmed via an external resistor within a 10m A to 100m A range. Dimming control is supported through a standard PWM scheme up to 25k Hz or through an analog signal. Featuring Exar’s Smart Talk TM technology, when bined with a boost converter, the XRP7618 maximizes the overall system efficiency by dynamically reporting the minimum LED voltage necessary to maintain current regulation mode. Multiple channels can be bined to increase current driving capability per channel and multiple XRP7618s can be placed in parallel to drive over 8 strings of LEDs. An under voltage lock out, open LED and over temperature protections insure safe operations under abnormal operating conditions. The XRP7618 is...
