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RT8489

Part Number	RT8489
Manufacturer	Richtek
Description	High Voltage 4-CH LED Driver Controller
Published	May 27, 2016
Detailed Description	® RT8489 High Voltage 4-CH LED Driver Controller General Description The RT8489 is a 4-CH LED driver controller that d...
Datasheet	RT8489 PDF File

Overview

® RT8489 High Voltage 4-CH LED Driver Controller General Description The RT8489 is a 4-CH LED driver controller that delivers well matched LED current to each channel of LED string.
With external current sources, the number of LEDs per string is only limited by the current source and the VIN/ VOUT conditions.
The current mode PWM Boost type controller operates at an adjustable switching frequency of up to 1MHz, with a wide VIN range covering from 7V to 28V.
The switch driver is designed to drive industrial grade high power MOSFETs.
The PWM loop selects and regulates the LED string with the highest voltage string to 0.
7V, thus allowing voltage mismatches between the LED strings.
The RT8489 ...

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