The Microchip Technology TC652AGVUA is a solid-state thermostat with integrated fan control, part of the TC652 series in the Discrete Semiconductors category. It is designed to monitor temperature and assert an Active Low output when the die temperature crosses the programmed trip thresholds of 25°C or 55°C. The output function combines /Fault, /OverTemp, and PWM signals, making it suitable for closed-loop fan speed control in thermally constrained systems.
The ±2.5°C accuracy means the part triggers within a tight window around the set point — important for systems where a few degrees of margin separate safe operation from thermal shutdown. The 2.8 V supply rail is common in low-voltage embedded designs; the part draws negligible quiescent current, so it fits battery-powered or energy-harvesting applications. The Active Low output type means the /Fault and /OverTemp signals pull low when the condition is met — a standard logic interface that connects directly to a microcontroller GPIO or a fan driver enable pin. The switching temperatures of 25°C and 55°C cover typical ambient and chassis hot-spot thresholds for electronics enclosures. With a -40°C to 125°C operating range, the TC652AGVUA handles automotive under-hood, industrial motor-drive, and outdoor telecom environments where the ambient temperature swings widely. The Hot trip threshold means it responds to rising temperature, not falling — the intended use is over-temperature protection or fan-on demand.
No end-of-life notice or successor has been issued.