TMP275AIDGKR--VSSOP8 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TMP275AIDGKR is a digital temperature sensor with 12-bit resolution and ±2°C accuracy over the -40°C to +125°C range, communicating via a 2-wire I2C/SMBus interface. It integrates a programmable thermostat output and four I2C address pins in a VSSOP-8 package. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TMP275AIDGKR--VSSOP8 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 12-bit resolution provides 0.0625°C temperature steps for precise thermal monitoring in server and industrial equipment
- Programmable T_HIGH and T_LOW thermostat registers enable autonomous over-temperature alerts without host CPU polling
- Up to 8 devices share one I2C bus via configurable address pins, simplifying multi-zone thermal management wiring
Applications
The TMP275AIDGKR is used in server motherboards and networking switches to monitor PCB and ambient temperature across multiple zones via a shared SMBus, triggering fan speed adjustments or system shutdown before thermal damage. It suits industrial control panels and motor drives operating from -40°C to +125°C where accurate temperature feedback influences PID loop parameters and safety interlocks. The device also finds use in medical diagnostic equipment and laboratory instruments requiring NIST-traceable temperature accuracy within ±2°C without periodic calibration.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TMP275AIDGKR--VSSOP8:
suggested
suggested
Serial Switch/Digital Sensor, 12 Bit(s), 0.5Cel, Square, 8 Pin, Surface Mount
Serial Switch/Digital Sensor, 12 Bit(s), 0.5Cel, Square, 8 Pin, Surface Mount
Serial Switch/Digital Sensor, 12 Bit(s), 0.5Cel, Square, 8 Pin, Surface Mount
Serial Switch/Digital Sensor, 12 Bit(s), 0.5Cel, Square, 8 Pin, Surface Mount
Serial Switch/Digital Sensor, 12 Bit(s), 0.5Cel, Rectangular, 8 Pin, Surface Mount
Serial Switch/Digital Sensor, 12 Bit(s), 0.5Cel, Rectangular, 8 Pin, Surface Mount
Frequently Asked Questions
What is the temperature measurement resolution of TMP275AIDGKR and how precise is its reading?
The TMP275AIDGKR offers 12-bit resolution, corresponding to steps of 0.0625°C per LSB. Combined with ±2°C accuracy over the full -40°C to +125°C operating range, it provides sufficient precision for thermal protection and environmental monitoring tasks without requiring external calibration.
How many TMP275AIDGKR sensors can share a single I2C bus in a multi-zone monitoring system?
Up to 8 TMP275AIDGKR devices can share a single I2C bus by configuring the three address pins to unique binary combinations. This allows a single 2-wire bus to cover 8 distinct temperature measurement points across a PCB or enclosure, reducing wiring complexity and host I/O requirements compared to analog sensor arrays.
What is the operating temperature range of TMP275AIDGKR for industrial and automotive applications?
The TMP275AIDGKR operates from -40°C to +125°C, meeting the extended industrial temperature specification. This range covers outdoor enclosures, automotive cabin electronics, and factory automation equipment exposed to wide ambient swings without requiring device derating or special thermal packaging.
How does the programmable thermostat function of TMP275AIDGKR reduce CPU polling overhead?
T_HIGH and T_LOW registers in the TMP275AIDGKR store user-defined trip points; the ALERT output pin asserts when temperature exceeds T_HIGH and deasserts below T_LOW with a configurable hysteresis. This hardware thermostat eliminates continuous I2C polling by generating an interrupt only when temperature crosses the 8-bit programmed threshold, reducing host CPU wake cycles from continuous to event-driven.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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