SLUSDL4 February 2020 TPS59632-Q1
PRODUCTION DATA
The TPS59632 device supports both resistor sensing and inductor DCR sensing. However, inductor DCR sensing is not suitable for automotive applications due to wide variation in current sensing across temperature. The sense resistance, RS must be chosen large enough to give sufficient current signal to the controller and small enough to keep the power dissipation low. Choosing max power dissipation to about 0.5W per phase, we get RS = 1 mΩ.