TCN75-3.3MOA713G is a serially programmable temperature sensor that notifies the host controller when ambient temperature exceeds a user-programmed setpoint. Hysteresis is also programmable. The INT/CMPTR output is programmable as either a simple comparator for thermostat operation or as a temperature event interrupt. Communication with the TCN75-3.3MOA713G is accomplished via a two-wire bus that is compatible with industry standard protocols. This permits reading the current temperature, programming the setpoint and hysteresis and configuring the device. The TCN75-3.3MOA713G powers up in Comparator mode with a default setpoint of 80°C with 5°C hysteresis. Defaults allow independent operation as a stand-alone thermostat. A shut-down command may be sent via the 2-wire bus to activate the low-power standby mode. Address selection inputs allow up to eight TCN75's to share the same 2-wire bus for multi-zone monitoring.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. Small physical size, low installed cost and ease of use make the TCN75-3.3MOA713G an ideal choice for implementing sophisticated system management schemes.
Please consider this deviceTCN75A
Feature
- Solid State Temperature Sensing; 0.5°C Accuracy (Typ.)
- Operates from -55°C to +125°C
- Voltage Operating Range: 2.7V to 5.5V
- Programmable Trip Point and Hysteresis with Power-up Defaults
- Standard 2-Wire Serial Interface
- Thermal Event Alarm Output Functions as Interrupt or Comparator/Thermostat Output
- Up to 8 TCN75's may share the same bus
- Shutdown Mode for Low Standby Power Consumption
- 5V Tolerant I/O at VDD = 3V
- Low Power: 250 µA (Typ.) Operating, 1 µA (Typ.) Shutdown Mode
