Overview
The TMP107BIDR from Texas Instruments is a high-accuracy digital temperature sensor designed for precise thermal monitoring in various applications. It features a UART-compatible, SMAART Wire™ interface, allowing for bidirectional communication over a single wire. This sensor is particularly useful in scenarios requiring the monitoring of large areas over long distances, supporting up to 32 daisy-chained devices. The TMP107BIDR operates over a wide temperature range of –55°C to +125°C and is available in an 8-pin SOIC package.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Temperature Range | –55 | +125 | °C | |
| Supply Voltage (V+) | 1.7 | 5.5 | V | |
| Temperature Resolution | 0.015625 °C | |||
| Temperature Accuracy | ±0.4 | ±0.7 | °C (–20°C to +70°C, –40°C to +100°C, –55°C to +125°C respectively) | |
| Package Type | 8-pin SOIC | |||
| Communication Interface | UART-Compatible, SMAART Wire™ | |||
| EEPROM Memory | For unique addressing, trip level programming, and general-purpose storage |
Key Features
- High Accuracy: ±0.4°C (max) from –20°C to +70°C, ±0.55°C (max) from –40°C to +100°C, and ±0.7°C (max) from –55°C to +125°C without calibration.
- High Resolution: 14-bit digital output with a resolution of 0.015625°C.
- UART-Compatible SMAART Wire™ Interface: Allows up to 32 daisy-chained devices and supports individual and global commands.
- EEPROM Memory: For unique addressing, trip level programming, and general-purpose storage.
- Programmable Alert Feature: With two ALERTx pins for under- and overtemperature monitoring, each with independent, dynamically-programmable limits.
- Multiple Operating Modes: Continuous conversion, shutdown mode, and one-shot conversion mode for power savings and custom update rates.
Applications
- Cold-Chain Logistics: For precise temperature monitoring in cold chain applications.
- Distributed Temperature Sensing: Ideal for monitoring temperatures over large areas.
- Power-Supply and Battery Thermal Protection: Ensures thermal safety in power supply and battery systems.
- Servers and Telecommunication Systems: For thermal monitoring in data centers and telecommunication equipment.
- Building Automation and HVAC: Used in heating, ventilation, and air conditioning systems for temperature control.
- Agricultural Equipment: For temperature monitoring in agricultural machinery and environments.
- Medical Devices: Suitable for temperature sensing in medical equipment and applications.
- Industrial Process Control: For precise temperature monitoring in industrial processes.
Q & A
- What is the operating temperature range of the TMP107BIDR?
The TMP107BIDR operates over a temperature range of –55°C to +125°C.
- What is the resolution of the temperature sensor?
The temperature sensor has a resolution of 0.015625°C.
- How many devices can be daisy-chained using the SMAART Wire™ interface?
Up to 32 devices can be daisy-chained using the SMAART Wire™ interface.
- What is the purpose of the ALERTx pins?
The ALERTx pins are used for under- and overtemperature monitoring, each with independent, dynamically-programmable limits.
- What types of operating modes does the TMP107BIDR support?
The TMP107BIDR supports continuous conversion, shutdown mode, and one-shot conversion mode.
- What is the function of the EEPROM memory in the TMP107BIDR?
The EEPROM memory is used for unique addressing, trip level programming, and general-purpose storage.
- How does the SMAART Wire™ interface work?
The SMAART Wire™ interface is a UART-compatible, bidirectional communication protocol that allows communication over a single wire, supporting individual and global commands.
- What is the package type of the TMP107BIDR?
The TMP107BIDR is available in an 8-pin SOIC package.
- What are some common applications of the TMP107BIDR?
Common applications include cold-chain logistics, distributed temperature sensing, power-supply and battery thermal protection, servers and telecommunication systems, building automation and HVAC, agricultural equipment, medical devices, and industrial process control.
- How do you clear the ALERTx pin in alert mode?
To clear the ALERTx pin in alert mode, issue a global alert clear x command or read the configuration register.
