The TC6501/2/3/4 series of temperature switches have 5 factory-programmed temperature thresholds and a variety of factory-trimmed temperature points.

TC6501: A switch with an open-drain, active-low output that is suitable for hot temperatures.

TC6502: A switch with a CMOS, active-high output that is suitable for hot temperatures.

TC6503: A switch with an open-drain, active-low output that is suitable for cold temperatures.

TC6504: A switch with a CMOS, active-high output that is suitable for hot temperatures.

Typical applications for the TC6501/2/3/4 temperature switches include notebook computers, network boxes, thermal management within PCs and servers, over-temperature fail-safe circuits, fan controllers, temperature alarms, projectors and printers.

The Microchip TC6502 temperature switch require no external components and are available with factory-programmed temperature thresholds. It operates on voltage range of 2.7V to 5.5V. The pin-selectable hysteresis of +2°C or +10°C allows flexibility to the design of the application. It is designed for hot temperature monitoring (+35°C to +125°C) and assert a logic signal when the temperature goes above the threshold.

Factory-programmed thresholds from -45°C to +125°C in 10°C increments
Threshold accuracy over full temperature range is ±0.5°C (Typ)
Standard temperature threshold of 75°C
No External Components Required
Supply current of 17μA(typ.)
5-lead SOT-23 package

Temperature & Humidity Sensors, Microchip