Microchip | TCN75-5.0MUA

Microchip Technology is a leading innovator and supplier of high performance and high quality embedded solutions and microcontrollers; related non-volatile memory products; and a broad analog product line focusing on power management, thermal management, linear and mixed-signal solutions.

Temperature sensing is critical to a growing number of consumer, automotive, and industrial applications. Microchip’s digital temperature sensors are ideal choice for implementing temperature system management schemes in a variety of applications.

TCN75 - 2-Wire Serial Temperature Sensor and Thermal Monitor

The TCN75 is a serially programmable temperature sensor that notifies the host controller when ambient temperature exceeds a user programmed set point. Hysteresis is also programmable.

The INT/CMPTR output is programmable as either a simple comparator for thermostat operation or as a temperature event interrupt. All registers can be read by the host and the INT/CMPTR output’s polarity is user programmable. Both polled and interrupt driven systems are easily accommodated.

Communication with the TCN75 is accomplished via a 2-wire bus that is compatible with industry standard protocols. This permits reading the current temperature, programming the set point and hysteresis and configuring the device. Address selection inputs allow up to eight TCN75s to share the same 2-wire bus for multizone monitoring.

The TCN75 powers up in Comparator mode with a default set point of 80°C with 5°C hysteresis. Defaults allow independent operation as a stand-alone thermostat. A shutdown command may be sent via the 2-wire bus to activate the low-power Standby mode.

The TCN75-5.0MUA is a MSOP 2-Wire Serial Temperature Sensor and Thermal Monitor with accuracy optimized for 5.0V.