RT8475 Datasheet - Richtek

RT8475, High Voltage High Current LED Driver Controller

® RT8475 High Voltage High Current LED Driver Controller for Buck, Boost or Buck-Boost Topology General .
The RT8475 is a current mode PWM controller designed to drive an external MOSFET for high current LED applications.

Features

* z High Voltage Capability : VIN Up to 36V, LED Sensing Threshold Common Mode Voltage Up to 90V z Buck, Boost or Buck-Boost Operation z Programmable Switching Frequency z Easy Dimming Control : Analog or Digital Converting to Analog with One External Capacitor z Programmable Soft-Start to Avoid Inrus

Applications

* With a current sense amplifier threshold of 190mV, the LED current is programmable with one external current sense resistor. With the maximum operating input voltage of 36V and output voltage up to 90V, the RT8475 is ideal for buck, boost or buck-boost operation. With the switching frequency progra

RT8475-Richtek.pdf