Hello,
I'd like to ask some questions about the data sheet description on page 24, which says,
- SPx should connect to the low-side (ground) of the sense resistor for the best common mode rejection.
- SNx should connect to the high-side (LS MOSFET source) of the sense resistor.
I'm considering connecting the inputs in the opposite way - SNx to the low side (ground) and SPx to the high side (LS MOSFET source), however,
- How much will the common-mode rejection performance will be worsened? In other words, how much will the recommended input connection will improve the common-mode rejection performance?
- It seems that the input connections of SPx/SNx in Figure 24 (Layout Recommendation) on page 49 are different from that recommendation. Is it just a mistake?
- Overall, will there be no problem to tie the SNx to GND and the SPx to LS MOSFET source?
