How to Achieve a 300:1 Dimming Ratio with the DS3881/DS3882 CCFL Controllers

Maxim Integrated Products

Application Note

January 2008

This application note describes how cold cathode fluorescent lamps (CCFL) can be dimmed and how a user can maximize the dimming ratio of a CCFL inverter by using the DS3881 and DS3882 CCFL controllers. The note offers guidelines for practical implementations in automotive, industrial, and avionic applications.

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