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  • TMP1075 Temperature Sensor With I2C and SMBus Interface in Industry Standard LM75 Form Factor and Pinout

    • SBOS854F March   2018  â€“ June 2024 TMP1075

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  • TMP1075 Temperature Sensor With I2C and SMBus Interface in Industry Standard LM75 Form Factor and Pinout
  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 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:TMP1075
    6. 6.6  Electrical Characteristics: TMP1075N
    7. 6.7  Timing Requirements:TMP1075
    8. 6.8  Timing Requirements: TMP1075N
    9. 6.9  Switching Characteristics
    10. 6.10 Timing Diagrams
    11. 6.11 Typical Characteristics
  8. 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 I2C and SMBus Serial Interface
        1. 7.3.2.1  Bus Overview
        2. 7.3.2.2  Serial Bus Address
        3. 7.3.2.3  Pointer Register
          1. 7.3.2.3.1 Pointer Register Byte [reset = 00h]
        4. 7.3.2.4  Writing and Reading to the TMP1075
        5. 7.3.2.5  Operation Mode
          1. 7.3.2.5.1 Receiver Mode
          2. 7.3.2.5.2 Transmitter Mode
        6. 7.3.2.6  SMBus Alert Function
        7. 7.3.2.7  General Call- Reset Function
        8. 7.3.2.8  High-Speed Mode (HS)
        9. 7.3.2.9  Coexists in I3C Mixed Fast Mode
        10. 7.3.2.10 Time-Out Function
      3. 7.3.3 Timing Diagrams
      4. 7.3.4 Two-Wire Timing Diagrams
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode (SD)
      2. 7.4.2 One-Shot Mode (OS)
      3. 7.4.3 Continuous Conversion Mode (CC)
      4. 7.4.4 Thermostat Mode (TM)
        1. 7.4.4.1 Comparator Mode (TM = 0)
        2. 7.4.4.2 Interrupt Mode (TM = 1)
        3. 7.4.4.3 Polarity Mode (POL)
    5. 7.5 Register Map
      1. 7.5.1 Register Descriptions
        1. 7.5.1.1 Temperature Register (address = 00h) [default reset = 0000h]
        2. 7.5.1.2 Configuration Register (address = 01h) [default reset = 00FFh (60A0h TMP1075N)]
        3. 7.5.1.3 Low Limit Register (address = 02h) [default reset = 4B00h]
        4. 7.5.1.4 High Limit Register (address = 03h) [default reset = 5000h]
        5. 7.5.1.5 Device ID Register (address = 0Fh) [default reset = 7500]
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Migrating From the xx75 Device Family
      3. 8.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
  13. IMPORTANT NOTICE
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Data Sheet

TMP1075 Temperature Sensor With I2C and SMBus Interface in Industry Standard LM75 Form Factor and Pinout

1 Features

  • Temperature accuracy:
    • ±0.25°C (typical) from −55°C to 125°C
    • ±1°C (maximum) from −40 °C to 110°C
    • ±2°C (maximum) from −55°C to 125°C
  • Low power consumption:
    • 2.7μA Average current
    • 0.37μA Shutdown current
  • Supply range options from: 1.62V to 5.5V
  • Temperature independent of supply
  • Digital interface: SMBus, I2C
  • Software compatibility with industry standard LM75 and TMP75
  • Can coexist in I3C mixed fast mode bus
  • Resolution: 12 Bits
  • Supports up to 32 I2C addresses
  • ALERT pin function
  • NIST traceability

2 Applications

  • Power-supply temperature monitoring
  • Connected peripherals & printers
  • PC and notebooks
  • Mobile phones
  • Battery management
  • Enterprise machine
  • Thermostat
  • Wireless environmental sensor and HVAC
  • Electro mechanical device temperature

3 Description

The TMP1075 is the most accurate and lowest power replacement to the industry standard LM75 and TMP75 digital temperature sensors. Available in SOIC-8, VSSOP-8, WSON-8, and SOT563-6 packages, the TMP1075 offers pin-to-pin and software compatibility to quickly upgrade any existing xx75 design. The TMP1075 additional new packages are a 2.0mm × 2.0mm DFN and a 1.6mm × 1.6mm SOT563-6 reducing the printed circuit board (PCB) footprint by 82% and 89% compared to the SOIC package, respectively.

The TMP1075 has a ±1°C accuracy over a wide temperature range and offers an on-chip 12-bit analog-to-digital converter (ADC) providing a temperature resolution of 0.0625°C.

Compatible with two-wire SMBus and I2C interfaces, the TMP1075 support up to 32 device addresses and provides SMBus Reset and Alert function.

The TMP1075 D, DGK, and DSG packages are specified for operation over a temperature range of −55°C to 125°C and the TMP1075N DRL package is specified over the −40°C to 125°C temperature range.

The TMP1075 units are 100% tested on a production setup that is NIST traceable and verified with equipment that is calibrated to ISO/IEC 17025 accredited standards.

Package Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2)
TMP1075 VSSOP (DGK, 8) 3.00mm × 4.90mm
SOIC (D, 8) 4.90mm × 6.00mm
WSON (DSG, 8) 2.00mm × 2.00mm
SOT563 (DRL, 6)(3) 1.60mm × 1.60mm
(1) For more information, see Section 11.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
(3) Available as the TMP1075N orderable.
TMP1075 Simplified Schematic Simplified Schematic
TMP1075 Temperature Accuracy
DGK and D packages
Temperature Accuracy

4 Device Comparison

Table 4-1 lists the key specification and feature differences between the different TMP1075 packages.

Table 4-1 Package Feature and Spec Comparison

SPEC/FEATURE

 TMP1075

TMP1075N
D DGK DSG DRL

Supply Voltage

1.7 V to 5.5 V

 1.7 V to 5.5 V 1.7 V to 5.5 V 1.62 V to 3.6 V

Temperature Range

–55°C to 125°C

 –55°C to 125°C –55°C to 125°C –40°C to 125°C

Body Size

4.90 mm × 3.91 mm

3.00 mm × 3.00 mm

2.00 mm × 2.00 mm

1.60 mm × 1.20 mm

Accuracy

±1.0°C: –40°C to +110°C

±2.0°C: –55°C to 125°C

±1.0°C: –40°C to +110°C

±2.0°C: –55°C to 125°C

±1.0°C: –40°C to +75°C

±2.0°C: –55°C to 125°C

±1.0°C: –10°C to +60°C

±2.0°C: –40°C to 125°C

I2C Addresses

32

32

32

4

Conversion Rate Settings

Yes

Yes

Yes

No

Device ID

Yes

Yes

Yes

No

5 Pin Configuration and Functions

Figure 5-1 D Package 8-Pin SOIC Top View

Figure 5-3 DSG Package 8-Pin WSON Top View

Figure 5-2 DGK Package 8-Pin VSSOP Top View

  1. Pin 1 is determined by orienting the package marking as indicated in the diagram.
  2. Referred to as the TMP1075N orderable throughout the document.

Figure 5-4 DRL Package 6-Pin SOT563 Top View
Table 5-1 Pin Functions
PIN TYPE(1) DESCRIPTION
NAME SOIC / VSSOP / WSON SOT563
A0 7 4 I Address select A0: Connect to GND, V+, SDA, or SCL
A1 6 — I Address select A1: Connect to GND, V+, SDA, or SCL
A2 5 — I Address select A2: Connect to GND or V+
ALERT 3 3 O Overtemperature alert; Open-drain output that requires a pullup resistor
GND 4 2 — Ground
SCL 2 1 I Serial clock
SDA 1 6 I/O Serial data. Open-drain output that requires a pullup resistor
V+ 8 5 I Supply voltage, 1.7 V to 5.5 V (TMP1075); 1.62 V to 3.6 V (TMP1075N)
(1) I = Input, O = Output, I/O = Input or Output

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
Power supply, V+ TMP1075 6.5 V
TMP1075N 4
Input voltage SCL, SDA, A1, A0 TMP1075 –0.3 6.5 V
Input voltage SCL, SDA, A0 TMP1075N –0.3 4 V
Input voltage ALERT TMP1075N (V+)+0.3 and ≤4 V
Input voltage A2 pin TMP1075 –0.3 (V+) + 0.3 V
Operating temperature –55 150 °C
Junction temperature, TJ 150 °C
Storage temperature, Tstg –60 130 °C
(1) Operation outside the Absolute Maximum Ratings may cause permanent device damage. Absolute Maximum Ratings do not imply functional operation of the device at these or any other conditions beyond those listed under Recommended Operating Conditions. If used outside the Recommended Operating Conditions but within the Absolute Maximum Ratings, the device may not be fully functional, and this may affect device reliability, functionality, performance, and shorten the device lifetime.

6.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) 2000 V
Charged device model (CDM), per JEDEC specification JESD22-C101(2) 1000
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
Supply voltage TMP1075 1.7 5.5 V
TMP1075N 1.62 3.3 3.6 V
Operating free-air temperature, TA TMP1075 –55 125 °C
TMP1075N -40 125 °C

 
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