MICROCHIP TCN75AVOA713

The TCN75A digital temperature sensor converts temperatures between -40°C and +125°C to a digital word, with ±1°C (typ.) accuracy. The TCN75A product comes with user-programmable registers that provide flexibility for temperature-sensing applications. The register settings allow user-selectable, 0.5°C to 0.0625°C temperature measurement resolution, configuration of the power-saving Shutdown and One-shot (single conversion on command while in Shutdown) modes and the specification of both temperature alert output and hysteresis limits. When the temperature changes beyond the specified limits, the TCN75A outputs an alert signal. The user has the option of setting the alert output signal polarity as an active-low or active-high comparator output for thermostat operation, or as temperature event interrupt output for microprocessor-based systems. This sensor has an industry standard 2-wire, I2C compatible serial interface, allowing up to eight devices to be controlled in a single serial bus. These features make the TCN75A ideal for low-cost, sophisticated multi-zone temperature-monitoring applications.

• Temperature-to-Digital Converter
• Accuracy: ±1°C (typ.) from -40°C to +125°C; ±2°C (max.) from +40°C to +125°C
• User-selectable Resolution: 0.5°C to 0.0625°C
• Operating Voltage Range: 2.7V to 5.5V
• 2-wire Interface: I2C Compatible
• Operating Current: 200μA (typ.)
• Shutdown Current: 2μA (max.)
• Power-saving One-shot Temperature Measurement
• Available Packages: MSOP-8, SOIC-8

• Personal Computers and Servers
• Hard Disk Drives and Other PC Peripherals
• Entertainment Systems
• Office Equipment
• Data Communication Equipment
• General Purpose Temperature Monitoring