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RT8573

Part Number	RT8573
Manufacturer	Richtek
Description	High Voltage Boost/SEPIC Controller
Published	Jun 6, 2015
Detailed Description	Preliminary RT8573 High Voltage Boost/SEPIC Controller General Description The RT8573 is a current mode PWM controlle...
Datasheet	RT8573 PDF File

Overview

Preliminary RT8573 High Voltage Boost/SEPIC Controller General Description The RT8573 is a current mode PWM controller designed to drive an external MOSFET for high current LED applications.
With a low side current sense amplifier threshold of 190mV, the LED current is programmable with one external current sense resistor.
With programmable operating frequency up to 800kHz, the external inductor and capacitors can be small while maintaining high frequency.
Dimming can be done by either analog or digital.
A built-in clamping comparator and filter allow easy low noise analog dimming conversion from digital signal with only one external capacitor.
An unique True PWM dimming control is made e...

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