onsemi NCT175DMR2G

NCT175 is a two-wire serial programmable temperature sensor with an over-temperature/interrupt output pin for indicating out-of-limit conditions. This pin is open-drain and can operate in either comparator or interrupt mode. Temperature measurements are converted to digital form using a high-resolution (12-bit) sigma-delta ADC. The device operates over a temperature range of -55°C to +125°C. Communication with the NCT175 is accomplished via the SMBus/I²C interface. Three address selection pins A2, A1, and A0 allow up to 8 NCT175 devices to be connected to a single bus. The internal registers of the NCT175 are accessible through this interface. These registers allow users to read the current temperature, change configuration settings, and adjust temperature limits. The NCT175 operates from a supply voltage range of 3.0V to 5.5V. At 3.3V, the average supply current is 575 μA. It also provides a shutdown mode to reduce power consumption. Typical shutdown current is 3 μA. The NCT175 is available in an 8-pin Micro8 package and is fully pin and register compatible with the NCT75, LM75, and TCN75.

• 12-bit temperature-to-digital converter
• Input voltage range: 3.0V to 5.5V
• Temperature range: -55°C to +125°C
• SMBus/I²C interface
• Over-temperature indicator
• SMBus/ALERT support
• Low-power shutdown mode
• One-shot mode
• 8-pin Micro8 package
• Lead-free, halogen-free/bromine-free flame retardant, RoHS compliant

• Computer thermal monitoring
• Thermal protection
• Isolated sensors
• Battery management
• Office electronics