Soft-start time, overcurrent protection thresholds, and stacking configuration can be configured using the MSEL2 pin. The TPSM8D6C24 device support several soft-start times from 0 to 31.75 ms in 250-µs steps (7 bits) selected by the TON_RISE command. Eight times are selectable using the MSEL2 pin. The TPSM8D6C24 device support several low-side overcurrent warn and fault thresholds from 8 to 62 A selected by the IOUT_OC_WARN_LIMIT and IOUT_OC_FAULT_LIMIT commands. Four thresholds are selectable using the MSEL2 pin. The response to an OC fault can be changed through PMBus. Lastly, the number of devices stacked is set using the MSEL2 pin.

The resistor divider code for MSEL2 selects the soft-start values. The resistor to AGND determines the number of devices sharing common output and the overcurrent thresholds. Use Table 6-11 and Table 6-10 to select the resistor to AGND code and resistor divider code needed for the desired configuration.

In this single-phase design, resistor divider code 3 is selected for 5-ms soft start and resistor to AGND code 0 is selected for the highest current limit thresholds and standalone configuration.