Pronay088
Junior Member level 1
Hi,
I am working on this Infineon IC ICL8201, which is an AC/DC Buck Controller with PFC for LED Lamps.
Here is a ref design for the IC.
I quote from the datasheet, "art 4.2.3. In it's normal regulation operation, power MOSFET is turned on by valley detection through DRAIN pin, is turned off by constant on time."
I mean HOW? This MOSFET switching part is not clear to me.
What is the function of Diode D2 here?
Please do explain it, I am kinda newbie here! Thanks.
** Datasheet here -
View attachment Infineon-ICL8201-DS-v02_01-EN.pdf
I am working on this Infineon IC ICL8201, which is an AC/DC Buck Controller with PFC for LED Lamps.
Here is a ref design for the IC.
I quote from the datasheet, "art 4.2.3. In it's normal regulation operation, power MOSFET is turned on by valley detection through DRAIN pin, is turned off by constant on time."
I mean HOW? This MOSFET switching part is not clear to me.
What is the function of Diode D2 here?
Please do explain it, I am kinda newbie here! Thanks.
** Datasheet here -
View attachment Infineon-ICL8201-DS-v02_01-EN.pdf