Hi guys, I hope you are fine.
I want to design a solar charger for 2 Li-Ion batteries to power a system using the LTC3652 I.C. My doubt is: can I use this I.C in a system that needs to be powered all the time? I've read the datasheet and It doesn't mention that has a some thing like "Sharing Load" to automatically switch between the batteries or the solar panel to power the system. But I want to use this IC due to its MPPT.
Another thing is that In the datasheet says:
"An auto-recharge feature starts a new charging cycle if the battery voltage falls 2.5% below the programmed float voltage"
So, If I program 8.4V for the Output battery voltage through the voltage divider pin Vfb (3.3v), and my battery falls below the 2.5% (8.4v- 8.4v(0.025) = 8.19V) then the charge cycle will be triggered. But with that level the battery still have a lot of energy, why the IC trigger the charge process with only the falling of 2.5%? and maybe this leads to reduce the battery lifecycle. Usually a Li-Ion battery is discharged at 3.0-3.2v (6.4v for both)...
Are there something with experience using this chip?
Ty guys,
I want to design a solar charger for 2 Li-Ion batteries to power a system using the LTC3652 I.C. My doubt is: can I use this I.C in a system that needs to be powered all the time? I've read the datasheet and It doesn't mention that has a some thing like "Sharing Load" to automatically switch between the batteries or the solar panel to power the system. But I want to use this IC due to its MPPT.
Another thing is that In the datasheet says:
"An auto-recharge feature starts a new charging cycle if the battery voltage falls 2.5% below the programmed float voltage"
So, If I program 8.4V for the Output battery voltage through the voltage divider pin Vfb (3.3v), and my battery falls below the 2.5% (8.4v- 8.4v(0.025) = 8.19V) then the charge cycle will be triggered. But with that level the battery still have a lot of energy, why the IC trigger the charge process with only the falling of 2.5%? and maybe this leads to reduce the battery lifecycle. Usually a Li-Ion battery is discharged at 3.0-3.2v (6.4v for both)...
Are there something with experience using this chip?
Ty guys,