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ISL9767x LED Drivers


Intersil's ISL9767x LED drivers feature channel shift control to minimize input


Intersil's ISL97675 is an LED driver that drives 4 channels of low power LEDs from 4.5V to 26V input and up to 45V output. The ISL97675 compensates for non-uniformity of the forward voltage drops in the LED strings with its 4 voltage controlled-current source channels. Its headroom control monitors the highest LED forward voltage string for output regulation and to minimize the voltage headroom and power loss in the typical multi-string operation. The ISL97675 features channel phase shift control to minimize input, output ripple characteristics and load transients as well as spread the light output to help eliminate or reduce the video and audio noise interference from the backlight driver operation.

The ISL97676 is an LED driver that drives 6 channels of LED current for TFT-display. The ISL97676 drives 6 channels of LED to support 78 LEDs from 4.5V to 26V or 48 LEDs from a boost supply of 2.7V to 26V and a separate 5V bias supply on the ISL97676 Vin pin. The ISL97676 compensates for non-uniformity of the forward voltage drops in the LED strings with its 6 voltage controlled-current source channels. Its headroom control monitors the highest LED forward voltage string for output regulation and to minimize the voltage headroom and power loss in the typical multi string operation. The ISL97676 features channel phase shift control to minimize the input, output ripple characteristics and load transients as well as spread the light output to help eliminate or reduce the video and audio noise interference from the backlight driver operation.
LED Drivers

Digi-Key P/N Manufacturer P/N Description  
ISL97675IRZ-TKTR-ND ISL97675IRZ-TK IC LED DVR PWM CTRL 4CH 20QFN Datasheet
ISL97676IRZ-ND ISL97676IRZ IC LED DVR PWM CTRL 6CH 20QFN Datasheet