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Calculation BQ24450

Other Parts Discussed in Thread: BQ24450

Hello!

I'm trying to build a battery charger for three types of SLA batterys: 12V/7Ah, 12V/10Ah and 12V/17Ah.

The problem is, that I don't know how to calculate the required resistors. Have anyone a excel chart or programm to calculate the values easily?

I also tried to resolve the equation in the datasheet but i have problems to do this right. The equation for Rc, Rd and Risns is already solved. But now i need to calculate Rb, Rt and Rp.

Can anyone help me please?

 

Thanks,

Max