feedback
Rate this webpage

Need
Support?


Ask An Expert

Our Ask An Expert knowledge base contains answers to questions from designers like you. Browse the knowledge base by category or search key words. Not seeing what you need? Ask An Expert a question of your own.
All   >>  LED Lighting   >>   LCD Backlighting Applications   >>   Questions
 

I am using the CAT4106. Earlier datasheets has the EN/PWM high time as 0.2us. Now I see that it is 100us. DOes this mean I can't drive the device with a 1000:1 ratio?

For most applications, a maximum dimming resolution can be achieved with PWM clock frequencies in the range of 100 Hz to 2 kHz. Pulse width intervals of 0.5us, allows up to 1000:1 dimming ratio at 2 kHz PWM frequency. Answered by:
ON Semiconductor
2013-08-14 14:02:17.726