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ISL97636 - 8-Channel LED Driver

Features

  • a dynamic headroom control that monitors the highest LED forward voltage string and uses its feedback signal for output regulation. The LED brightness can be pulse width modulated with an applied PWM signal from DC to audio noise free 20kHz. The ISL97636 features extensive protection functions that include string open and short circuit detections, OVP, OTP, thermal shutdown and an optional input overcurrent protec.

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Datasheet preview – ISL97636

Datasheet Details

Part number ISL97636
Manufacturer Renesas
File Size 809.60 KB
Description 8-Channel LED Driver
Datasheet download datasheet ISL97636 Datasheet
Additional preview pages of the ISL97636 datasheet.

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Full PDF Text Transcription

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ISL97636 8-Channel LED Driver The ISL97636 is an integrated power LED driver that controls 8 channels of LED current for LCD backlight applications. The ISL97636 is capable of driving typically 72 (8x9) pieces of 3.5V/30mA or 80 (8x10) pieces of 3.2V/20mA LEDs. The ISL97636’s contains 8 channels of voltage controlled current sources with typical currents matching of ±1%, which compensate for the non-uniformity effect of forward voltages variance in the LED stacks. To minimize the voltage headroom and power loss in the typical multi-strings operation, the ISL97636 features a dynamic headroom control that monitors the highest LED forward voltage string and uses its feedback signal for output regulation.
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