Overview
The TMP431ADGKR, manufactured by Texas Instruments, is a highly accurate remote and local temperature sensor monitor. It is designed to work with diode-connected transistors, which are typically low-cost NPN or PNP transistors or diodes, making it an essential component in microcontrollers, microprocessors, and FPGAs. The TMP431ADGKR offers a remote accuracy of ±1°C without the need for calibration, making it a reliable choice for precise temperature monitoring. It features a two-wire serial interface compatible with SMBus commands, allowing for easy programming of alarm thresholds and temperature data reading. The device is available in a compact VSSOP-8 package, making it suitable for space-constrained applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Temperature Range (Local) | -40°C to 125°C | °C | |
| Temperature Range (Remote) | -40°C to 150°C | °C | |
| Accuracy (Local) | ±1.25°C to ±2.5°C | °C | Depending on temperature range |
| Accuracy (Remote) | ±0.25°C to ±1°C | °C | Depending on temperature range |
| Supply Voltage | 2.7V to 5.5V | V | |
| Package | VSSOP-8 | ||
| Interface | Two-wire serial (SMBus) | ||
| Features | Beta compensation, diode fault detection, programmable resolution |
Key Features
- High accuracy remote and local temperature sensing (±1°C remote accuracy).
- Wide temperature measurement range: -40°C to 150°C (remote), -40°C to 125°C (local).
- Beta compensation for improved accuracy with different transistor types.
- Diode fault detection to ensure reliable operation.
- Programmable resolution and alarm thresholds for flexible application.
- Compact VSSOP-8 package for space-constrained designs.
Applications
The TMP431ADGKR is widely used in various applications that require precise temperature monitoring. It is commonly found in industrial automation systems, where it ensures the reliable operation of machinery by monitoring critical temperatures. In consumer electronics, it is used in devices such as laptops and smartphones to manage thermal performance. The automotive industry also benefits from its accuracy in monitoring engine and cabin temperatures. Additionally, it is used in FPGA and microprocessor-based systems to prevent overheating and ensure optimal performance.
Q & A
1. What is the temperature range of the TMP431ADGKR?
The local temperature range is -40°C to 125°C, and the remote temperature range is -40°C to 150°C.
2. Does the TMP431ADGKR require calibration?
No, the TMP431ADGKR does not require calibration, as it offers a remote accuracy of ±1°C.
3. What is the supply voltage range for the TMP431ADGKR?
The supply voltage range is 2.7V to 5.5V.
4. What interface does the TMP431ADGKR use?
It uses a two-wire serial interface compatible with SMBus commands.
5. What is the package type of the TMP431ADGKR?
The TMP431ADGKR is available in a VSSOP-8 package.
6. Can the TMP431ADGKR detect diode faults?
Yes, it includes diode fault detection to ensure reliable operation.
7. What is the accuracy of the TMP431ADGKR?
The local accuracy is ±1.25°C to ±2.5°C, and the remote accuracy is ±0.25°C to ±1°C, depending on the temperature range.
8. Is the TMP431ADGKR suitable for automotive applications?
Yes, it is commonly used in automotive systems for temperature monitoring.
9. Does the TMP431ADGKR support programmable thresholds?
Yes, it allows for programmable alarm thresholds and resolution.
10. What are the key features of the TMP431ADGKR?
Key features include beta compensation, diode fault detection, programmable resolution, and a wide temperature measurement range.
