SLUSF87 February 2024 TPSM8S6B24S
PRODUCTION DATA
Soft-start time, overcurrent protection thresholds, and stacking configuration can be configured using the MSEL2 pin. The TPSM8S6B24S device support several soft-start times from 0 to 31.75ms in 250µs steps (7 bits) selected by the TON_RISE command. Eight times are selectable using the MSEL2 pin. The TPSM8S6B24S device support several low-side overcurrent warn and fault thresholds from 8A to 62A 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 open is selected for 3ms soft start and resistor to AGND code 4 is selected for the 30/39A current limit thresholds and standalone configuration.