1 Features
1• Low-Voltage Alternative to NCT75 and ADT75
• Digital Output with Two-Wire Serial Interface
• Up to 8 Pin-Programmable Bus Addresses
• Overtemperature ALERT Pin with Programmable
Trip Values
• Shutdown Mode for Battery Power Saving
• One-Shot Conversion Mode
• Operating Temperature Range: –55°C to +125°C
• Operating Supply Range: 1.4 V to 3.6 V
• Quiescent Current:
– 15 μA Active (typ)
– 0.3 μA Shutdown (typ)
• Accuracy:
– ±0.25°C (typ) from 0°C to +70°C
– ±0.5°C (typ) from –20°C to +85°C
– ±1°C (typ) from –55°C to +125°C
• Resolution: 12 Bits (0.0625°C)
• Packages: SOIC-8 and VSSOP-8

2 Applications
• Server and Computer Thermal Management
• Telecommunication Equipment
• Office Machines
• Video Game Consoles
• Set-Top Boxes
• Power Supply and Battery Thermal Protection
• Thermostat Control
• Environmental Monitoring and HVAC
• Electrical Motor Driver Thermal Protection

3 Description
The TMP75C is an integrated digital temperature
sensor with a 12-bit analog-to-digital converter (ADC) that can operate at a 1.8-V supply, and is pin and
register compatible with the NCT75 and ADT75. This
device is available in SOIC-8 and VSSOP-8
packages and requires no external components to
sense the temperature. The TMP75C is capable of reading temperatures with a resolution of 0.0625°C
and is specified over a temperature range of –55°C to
+125°C.
The TMP75C features SMBus and two-wire interface
compatibility, and allows up to eight devices on the
same bus with the SMBus overtemperature alert function. The programmable temperature limits and
the ALERT pin allow the sensor to operate as a
stand-alone thermostat, or an overtemperature alarm
for power throttling or system shutdown.
The factory-calibrated temperature accuracy and the
noise-immune digital interface make the TMP75C the preferred solution for temperature compensation of
other sensors and electronic components, without the
need for additional system-level calibration or
elaborate board layout for distributed temperature
sensing.
The TMP75C is ideal for thermal management and
protection of a variety of consumer, computer, communication, industrial, and environmental
applications.