SLVSF02D March 2019 – May 2020 TPS23881
For systems requiring either more accurate system power monitoring or precise Port Power Policing accuracy, it is recommend that 0.1% RSENSE resistors be used.
In addition to the MOSFET RDS(on) and BVDSS characteristics, the power MOSFET SOA ratings also need to be taken into consideration when selecting these components for your system design. It is recommended that a MOSFET be chosen with an SOA rating that exceeds the inrush and operational foldback characteristic curves as shown in Figure 39 and Figure 40. When using the standard current foldback (ALTIRn or ALTFBn = 0) options, the CSD19538Q3A 100V N-Channel MOSFET is recommended.