高电流闪光灯LED驱动器的简单超时保护

摘要：这个保护功能可以在一个较长的生命周期的可靠的高功率LED操作和防止软件问题的情况下的LED倦怠。超时功能由简单的监控电路与电容可调延时。更普遍的是，这个硬件保护功能，可以实现非常简单，每次对软件激活问题，以保护周边的需求。

Maxim > Design support > App notes > Display Drivers > APP 4567
Maxim > Design support > App notes > Microprocessor Supervisor Circuits > APP 4567
Maxim > Design support > App notes > Power-Supply Circuits > APP 4567

Keywords: timeout protection, high-current flash LED drivers, microprocessor supervisors

Jan 24, 2011
APPLICATION NOTE 4567
Simple Timeout Protection for High Current Flash LED Drivers
By: Marc Regnier

Abstract: This protection feature enables reliable high-power LED operation over a long life cycle and prevent the burnout of the LED
in case of a software problem. The timeout function consists of a simple supervisor circuit with capacitor adjustable del