Intersil ISL97691单颗锂电池4路LED驱动方案

Intersil公司的ISL97691是高度集成的单颗锂电池供电的4路LED驱动器,可用于需要模拟调光的手机显示器和3D显示屏.输入电压2.4V-5.5V,提供4路40mA电流和高达26V电压,电流匹配±2.5% ,具有故障保护,主要用在平板电脑,笔记本PC和智能手机显示器LED背光,移动显示器2D或3D LED背光.本文介绍了ISL97691主要特性,方框图,典型应用电路图,PCB布局参考图和故障保护电路图.

The ISL97691 is Intersil’s highly integrated 4 channel LED driver for single cell Li-Ion battery operated mobile displays requiring analog dimming, and for 3D mobile display applications. It drives four 40mA channels of LEDs up to 26V from an input supply 2.4V to 5.5V. The ISL97691 will also drive 60mA channels up to 21V at 30% duty for high peak current 3D modes.
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