I am making wireless charger for my bachelor degree using P9242-R chip https://eu.mouser.com/datasheet/2/464/IDT_P9242-R-Datasheet_DST_20180116-1093299.pdf
After checking registers using I2C I found out that chip is detecting over-current and current on coil is 3.15A.
Because of that chip is in sleep mode (chip is detecting fault and to save himself he is not starting), and wont start properly until over-current error dissapears. I have set FOD limit for 3.2A and it didn't help.
Any help is appreciated :)
Base on the datasheet, the recommended current limit is 2.5A for 15W applications. So maybe you should not set it to 3.2A. Also, what devices are you charging that the current goes around 3.15A?
JBRenesasRulz Forum Moderator
Oh I see. Well good luck with your project!