SBOS760B November   2015  – April 2017 TMP275-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Digital Temperature Output
      2. 7.3.2 Serial Interface
      3. 7.3.3 Bus Overview
      4. 7.3.4 Serial Bus Address
        1. 7.3.4.1 Writing and Reading to the TMP275-Q1
        2. 7.3.4.2 Slave Mode Operations
          1. 7.3.4.2.1 Slave Receiver Mode
          2. 7.3.4.2.2 Slave Transmitter Mode
        3. 7.3.4.3 SMBus Alert Function
        4. 7.3.4.4 General Call
        5. 7.3.4.5 High-Speed Mode
        6. 7.3.4.6 Time-Out Function
      5. 7.3.5 Timing Diagrams
        1. 7.3.5.1 Two-Wire Timing Diagrams
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode (SD)
      2. 7.4.2 Thermostat Mode (TM)
        1. 7.4.2.1 Comparator Mode (TM = 0)
        2. 7.4.2.2 Interrupt Mode (TM = 1)
      3. 7.4.3 One-Shot (OS)
    5. 7.5 Programming
      1. 7.5.1 Pointer Register
      2. 7.5.2 Temperature Register
      3. 7.5.3 Configuration Register
      4. 7.5.4 Polarity (POL)
      5. 7.5.5 Fault Queue (F1/F0)
      6. 7.5.6 Converter Resolution (R1/R0)
      7. 7.5.7 High- and Low-Limit Registers
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Typical Connections of the TMP275-Q1
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Connecting Multiple Devices on a Single Bus
      3. 8.2.3 Temperature Data Logger for Cold Chain Management Applications
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • AEC-Q100 Qualified with:
    • Temperature Grade 1: –40°C to +125°C Ambient Operation Temperature Range
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C6
  • High Accuracy:
    • ±0.75°C (Maximum) from −10°C to +85°C
    • ±1.5°C (Maximum) from −40°C to +125°C
  • Low Quiescent Current:
    • 50 μA (Typical)
    • 0.1 μA (Standby)
  • Resolution: 9 to 12 Bits, User-Selectable
  • Digital Output: SMBus™, Two-Wire, and I2C Interface Compatibility
  • 8 I2C, SMBus Addresses
  • Wide Supply Range: 2.7 V to 5.5 V
  • Small 8-Pin VSSOP and SOIC Packages
  • No Specified Power-Up Sequence Required, Two-Wire Bus Pullups Can Be Enabled Before V+

2 Applications

  • Climate Controls
  • Infotainment Processor Management
  • Airflow Sensors
  • Battery Control Units
  • Engine Control Units
  • UREA Sensors
  • Water Pumps
  • HID Lamps
  • Airbag Control Units

    • Simplified Schematic

    TMP275-Q1 frontpage_simp_schema_sbos760.gif

3 Description

The TMP275-Q1 is a ±0.75°C, accurate integrated digital temperature sensor with a 12-bit, analog-to-digital converter (ADC) that can operate on a supply voltage as low as 2.7 V and is pin- and register-compatible with the Texas Instruments' LM75, TMP75, TMP75B, and TMP175 devices. The TMP275-Q1 device is available in 8-pin SOIC and VSSOP packages and requires no external components to sense temperature. The device is capable of reading temperatures with a maximum resolution of 0.0625°C (12 bits) and as low as 0.5°C (9 bits), thus allowing the user to maximize efficiency by programming for higher resolution or faster conversion time. The device is specified over the temperature range of –40°C to +125°C.

The TMP275-Q1 device features SMBus and two-wire interface compatibility and allows up to eight devices on the same bus with the SMBus overtemperature alert function. The factory-calibrated temperature accuracy and the noise-immune digital interface make the TMP275-Q1 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.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TMP275-Q1 SOIC (8) 4.90 mm × 3.91 mm
VSSOP (8) 3.00 mm × 3.00 mm
  1. For all available packages, see the package option addendum at the end of the data sheet.

Internal Block Diagram

TMP275-Q1 temp175_75_bos288j.gif

4 Revision History

Changes from A Revision (January 2016) to B Revision

  • Changed temperature (maximum) in title, Features and Description from "±0.5°C" to "±0.75°C"; change temperature range under "High Accuracy" row for ±0.75°C from "–20°C to 100°C" to "–10°C to 85°C"Go
  • Changed first test condition temperature range in "Accuracy" row from "–20°C to 100°C" to "–10°C to 85°C"; change MAX value in same row from "±0.5°C" to "±0.75°C"Go

Changes from * Revision (November 2015) to A Revision

  • Changed Thermal Information table specificationsGo