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RT8485

Part Number	RT8485
Manufacturer	Richtek
Description	High Voltage High Current LED Driver Controller
Published	May 27, 2016
Detailed Description	® RT8485 High Voltage High Current LED Driver Controller for Buck, Boost or Buck-Boost Topology General Description Th...
Datasheet	RT8485 PDF File

Overview

® RT8485 High Voltage High Current LED Driver Controller for Buck, Boost or Buck-Boost Topology General Description The RT8485 is a current-mode PWM controller designed to drive an external MOSFET for high current LED applications.
With a current sense amplifier threshold of 315mV, the LED current is adjustable with one external current sense resistor.
With the maximum operating input voltage of 36V and output voltage up to 150V, the RT8485 is ideal for Buck, Boost or Buck-Boost operation.
With the switching frequency programmable over 100kHz to 1MHz, the external inductor and capacitors can be small while maintaining high efficiency.
Dimming can be done by either analog or digital.
The bu...

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