THM pin can be grounded or left floating as long as the thermal monitor is not enabled (ThmEN[3] = 0b0).
MAX20361
Recommended for New Designs
The MAX20361 is a fully integrated solution for harvesting energy from single-/multi-cell solar sources. The device includes an ultra-low quiescent current...
Datasheet
MAX20361 on Analog.com
THM pin can be grounded or left floating as long as the thermal monitor is not enabled (ThmEN[3] = 0b0).