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ISL97678 Datasheet - Renesas

ISL97678-Renesas.pdf

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Datasheet Details

Part number:

ISL97678

Manufacturer:

Renesas ↗

File Size:

1.13 MB

Description:

50ma led driver.

ISL97678, 50mA LED Driver

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

ISL97678 Features

* dynamic headroom control that monitors the highest LED forward voltage string and uses its feedback signal for output regulation. The ISL97678 features PWM dimming up to 30kHz with 0.4%~100% duty cycle and maintains ±1% current matching across all ranges. The PWM dimming frequency can be adjusted be

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