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TMP275AIDGKR

0.5C I2C temp sensor, 12-bit, 2.7-5.5V, alert output, 8-VSSOP

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Manufacturer Part：

TMP275AIDGKR

Package：

8-VSSOP (DGK) (3.0 x 3.0 x 0.9 mm)

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Description

Product Overview

The TMP275AIDGKR from Texas Instruments is a 0.5C accuracy digital temperature sensor with I2C interface in a VSSOP-8 package. Operating from 2.7V to 5.5V, it provides 12-bit temperature resolution and supports up to 8 devices on a single I2C bus.

Key Specifications

Accuracy +/-0.5C (typ) @ 0C~60C
Resolution 12-bit (0.0625C)
Interface I2C / SMBus
Supply Voltage 2.7V ~ 5.5V
Supply Current 45uA active, 0.1uA shutdown
Address Pins 3 (up to 8 devices on bus)
Package 8-VSSOP
Operating Temperature -40°C to +125°C

Features

  • +/-0.5C accuracy from 0C to 60C
  • 12-bit (0.0625C) temperature resolution
  • I2C/SMBus compatible interface
  • Programmable temperature alert (OS) output 3 address pins for 8 devices on one bus 45uA active supply current

    Applications

    • Board-level temperature monitoring
    • Industrial process control
    • Environmental monitoring and HVAC
    • Medical equipment thermal management
    • Server and storage thermal alert

The TMP275AIDGKR from Texas Instruments is a high-accuracy digital temperature sensor with I2C/SMBus interface in a VSSOP-8 package. It offers +/-0.5C accuracy from 0C to 60C with 12-bit (0.0625C) temperature resolution. The device operates from 2.7V to 5.5V with only 45uA active current. Three address pins allow up to 8 devices on a single I2C bus. A programmable over-temperature alert (OS) output with configurable polarity and fault queue provides interrupt-driven thermal monitoring without continuous polling.

The TMP275AIDGKR uses a bandgap temperature-sensing element that generates a voltage proportional to absolute temperature (PTAT). This voltage is digitized by a delta-sigma ADC with 12-bit resolution (0.0625C per LSB). The result is stored in a read-only temperature register accessible via I2C. The OS (Over-temperature Shutdown/Alert) comparator compares the measured temperature against programmable T_high and T_low thresholds stored in configuration registers. When the temperature exceeds T_high or drops below T_low, the OS pin asserts. The fault queue prevents false triggers from transient temperature spikes.

Pin Name Type Function
1 SDA I/O I2C serial data
2 GND Power Ground
3 ALERT Output Over-temperature alert
4 A0 Input I2C address bit 0
5 A1 Input I2C address bit 1
6 A2 Input I2C address bit 2
7 V+ Power Supply voltage (2.7-5.5V)
8 SCL Input I2C serial clock
  • Server and storage system board-level thermal monitoring
  • Industrial process control temperature sensing
  • HVAC zone temperature measurement
  • Medical equipment thermal management and safety
  • Consumer electronics battery temperature monitoring
Manufacturer Part Number Package Notes
TI TMP275AIDR 8-SOIC Same function, SOIC package
TI TMP112AIDRLR SOT-6 0.5C, I2C, smaller package
ADI ADT7420UCPZ-RL7 16-LFCSP 0.25C accuracy upgrade
NXP PCT2075DP 8-TSSOP 1C accuracy, I2C compatible
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Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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