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ISL97678

Part Number	ISL97678
Manufacturer	Renesas
Description	50mA LED Driver
Published	Jul 25, 2018
Detailed Description	ISL97678 8-Channel 45V, 50mA LED Driver The ISL97678 is an 8-channel PWM dimming LED driver for LCD backlight applicatio...
Datasheet	ISL97678 PDF File

Overview

ISL97678 8-Channel 45V, 50mA LED Driver The ISL97678 is an 8-channel PWM dimming LED driver for LCD backlight applications.
The ISL97678 is capable of driving up to 96 pieces of 3.
4V/50mA LEDs but larger numbers of LEDs are possible if the LED forward voltage combined is less than 45V.
The ISL97678 has 8 channels of voltage controlled current sources with typical currents matching to ±1%, which compensate for the non-uniformity effect of forward voltages variance in the LED strings.
To minimize the voltage headroom and power loss in the typical multi-string operation, the ISL97678 features dynamic headroom control that monitors the highest LED forward voltage string and uses its feedback sig...

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