Overview
The TMP1075DGKR from Texas Instruments is a highly accurate and low-power digital temperature sensor designed to replace industry-standard LM75 and TMP75 sensors. It offers pin-to-pin and software compatibility, making it an ideal upgrade for existing designs. The TMP1075 is available in various packages, including SOIC-8, VSSOP-8, WSON-8, and SOT563-6, as well as newer packages like the 2.0mm × 2.0mm DFN and 1.6mm × 1.6mm SOT563-6, which significantly reduce the PCB footprint.
This sensor is optimized for thermal management and thermal protection applications across various industries, including telecommunications, enterprise, industrial, and personal electronics. It operates over a wide temperature range of −55°C to +125°C and is 100% tested on a production setup that is NIST traceable and verified to ISO/IEC 17025 accredited standards.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Temperature Range | −55 | 125 | °C | |
| Temperature Accuracy | ±0.25 | ±1 (−40°C to +110°C), ±2 (−55°C to +125°C) | °C | |
| Supply Voltage | 1.62 | 3.3 | 5.5 | V |
| Average Current | 2.7 | μA | ||
| Shutdown Current | 0.37 | μA | ||
| Resolution | 12 Bits | |||
| Temperature Resolution | 0.0625 | °C | ||
| I2C Addresses | Up to 32 | |||
| Interface | SMBus, I2C | |||
| Package Size (VSSOP-8) | 3.00 mm × 3.00 mm |
Key Features
- High Accuracy: ±0.25°C (typical) from −55°C to 125°C, ±1°C (maximum) from −40°C to 110°C, and ±2°C (maximum) from −55°C to 125°C.
- Low Power Consumption: Average current of 2.7 μA and shutdown current of 0.37 μA.
- Wide Supply Range: Operates from 1.62 V to 5.5 V.
- Digital Interface: Compatible with SMBus and I2C interfaces, supporting up to 400 kHz fast mode and 2.56 MHz high-speed mode.
- Software Compatibility: Compatible with industry-standard LM75 and TMP75 sensors.
- I3C Compatibility: Can coexist in I3C mixed fast mode bus.
- ALERT Pin Function: Provides an alert pin for temperature threshold notifications.
- NIST Traceability: 100% tested on a production setup that is NIST traceable and verified to ISO/IEC 17025 accredited standards.
Applications
- Power-Supply Temperature Monitoring: Ideal for monitoring temperatures in power supplies.
- Computer Peripheral Thermal Protection: Used in thermal protection for computer peripherals.
- Notebook Computers and Cell Phones: Suitable for temperature monitoring in portable electronics.
- Battery Management: Used in battery management systems for temperature monitoring.
- Office Machines and Thermostat Controls: Applied in office equipment and thermostat controls.
- Environmental Monitoring and HVAC: Used in environmental monitoring and heating, ventilation, and air conditioning (HVAC) systems.
- Electro-Mechanical Device Temperature Monitoring: Monitors temperatures in electro-mechanical devices.
Q & A
- What is the temperature accuracy of the TMP1075DGKR?
The TMP1075DGKR has a temperature accuracy of ±0.25°C (typical) from −55°C to 125°C, ±1°C (maximum) from −40°C to 110°C, and ±2°C (maximum) from −55°C to 125°C.
- What is the average current consumption of the TMP1075DGKR?
The average current consumption is 2.7 μA, with a shutdown current of 0.37 μA.
- What are the supported interfaces for the TMP1075DGKR?
The TMP1075DGKR supports SMBus and I2C interfaces, with compatibility up to 400 kHz fast mode and 2.56 MHz high-speed mode.
- How many I2C addresses does the TMP1075DGKR support?
The TMP1075DGKR supports up to 32 I2C addresses.
- What is the resolution of the temperature measurements provided by the TMP1075DGKR?
The temperature resolution is 12 bits, providing a resolution of 0.0625°C.
- Is the TMP1075DGKR compatible with other industry-standard temperature sensors?
Yes, it is software-compatible with industry-standard LM75 and TMP75 sensors.
- What are the package options available for the TMP1075DGKR?
The TMP1075DGKR is available in SOIC-8, VSSOP-8, WSON-8, SOT563-6, 2.0mm × 2.0mm DFN, and 1.6mm × 1.6mm SOT563-6 packages.
- What is the operating supply voltage range for the TMP1075DGKR?
The operating supply voltage range is from 1.62 V to 5.5 V.
- Does the TMP1075DGKR have any alert functions?
Yes, it has an ALERT pin function for temperature threshold notifications.
- Is the TMP1075DGKR NIST traceable?
Yes, the TMP1075DGKR is 100% tested on a production setup that is NIST traceable and verified to ISO/IEC 17025 accredited standards.
