i developed PCB whit BQ2057 li ion charger. For the schematics, i selected application circuit from page 10 in datasheet, for 0.5A charge current.
Now that i am testing i actually do get 0.5A charge current, but what do i have to do to increase it to 1A?
I see that equation for Rsns on same page but it is not clear:
I need to calculate resistance of R sns resistor, to acquire 1A of current
but what voltage do i need to generate on Vsns pin, to tell IC to rgulate 1 amp of current to battery?
Or should i just get from the application example for 0.5A, where it says to use 0.2 Ohm resistor. So a 0.1 Ohm or 0.4 Ohm resistor shoudl output either 0.25A or 1A? Assuming that it is a linear mathetical equtaion.