Other Parts Discussed in Thread: DRV8320, INA240, , DRV8323
Hi !
In our current design for 3 phase motor control design we are using DRV8320 with INA240 CSA and 0.001 Ohm shunt resistor (BOURNS CST0612-FC-R001E)
Due to a space constrains, We am considering to use DRV8323R internal current sense amplifiers instead of INA240, with same shunt resistor. Maximum motor current is 15A and motor supply is 16V.
For INA240 we can find error calculation in "Calculating Total Error" paragraph. There we see that how calcation is made based on CMRR, Gain error, Nonlinearity error, Initial input offset voltage etc etc
We can't find similar parameters and calculation for DRV8323R CSA?
How we can estimate total error for DRV8323R internal CSA based on electrical characteristics from page 15 in datasheet, please? Is there additional documentation for calculation CSA error for DRV8323R?
With regards,
Mladen Bruck
Stryker