Shown here is one of the many implementations of thermal management in mission-critical systems. In this solution, PSoC 4 provided a one-chip thermal management subsystem. PSoC 4 controls and monitors 4 fans with closed-loop TACH feedback. It also reads the temperature from 6 thermistors and controls target-fan rpm accordingly. The usual problem in such designs with many temperature sensors is to linearize sensor outputs for accurate temperature measurement and minimize fan noise and power. PSoC provides firmware algorithms to linearize sensor outputs and provide accurate temperature readings. PSoC also provides Thermal algorithms that optimize the fan rpm and thereby reduce fan noise and power consumption. PSoC integrates multiple ICs required to perform all these functions and reduces the bill of materials cost that also saves development time and enables the customer to create a custom one-chip thermal management solution in minutes.