The TMP117AIDRVR is a product from Texas Instruments (TI). It is a high-precision digital temperature sensor.
Packaging and Pin Function Specifications:
Package Type: The TMP117AIDRVR is in a VQFN (Very Thin Quad Flat No-lead) package. Number of Pins: The package has 8 pins.Here’s a detailed breakdown of the 8 pins and their functions:
Pin Number Pin Name Pin Function Description 1 VDD Power supply input. This pin supplies the required operating voltage for the TMP117AIDRVR (typically 1.8V-3.6V). 2 SDA Data line for I2C communication. It is used for bi-directional data transfer between the TMP117AIDRVR and the microcontroller or another device. 3 SCL Clock line for I2C communication. The TMP117AIDRVR uses this pin to synchronize data transmission with the clock signal. 4 GND Ground pin. This pin is connected to the ground of the system or the device. 5 ALERT Alert pin. It signals when the temperature reaches a critical threshold or when a fault is detected. It can be used to trigger an external interrupt or alert. 6 ADDR I2C address selection pin. It is used to select between two possible I2C addresses for the TMP117AIDRVR. The value of this pin determines the address when configuring the I2C bus. 7 NC No connection. This pin is reserved and should not be connected to any other circuit or component. 8 NC No connection. Like pin 7, this pin is reserved and should not be used in your circuit.Circuit Principle:
The TMP117AIDRVR is a digital temperature sensor that communicates over the I2C bus. It includes an internal temperature sensor with a high resolution of 0.001°C and can be used to monitor temperature with precision in various applications such as industrial systems, medical devices, and consumer electronics.
FAQ for TMP117AIDRVR:
1. What is the operating voltage range for the TMP117AIDRVR? Answer: The TMP117AIDRVR operates with a supply voltage range from 1.8V to 3.6V.
2. Can the TMP117AIDRVR be used with a 5V power supply? Answer: No, the TMP117AIDRVR cannot be used with a 5V power supply as it exceeds the maximum voltage rating of the device. A voltage supply of 3.6V or less is required.
3. What is the I2C address of the TMP117AIDRVR? Answer: The I2C address of the TMP117AIDRVR is determined by the ADDR pin. It can be 0x48 or 0x49, depending on the level of the ADDR pin.
4. How do I connect the TMP117AIDRVR to a microcontroller? Answer: The TMP117AIDRVR should be connected to the microcontroller using the SDA and SCL pins for I2C communication. Additionally, VDD and GND pins should be connected to the power supply and ground of the microcontroller.
5. How do I use the ALERT pin on the TMP117AIDRVR? Answer: The ALERT pin can be configured to signal when the temperature exceeds or falls below user-defined thresholds. It can be connected to an interrupt pin on a microcontroller to trigger actions when the temperature reaches critical levels.
6. Is the TMP117AIDRVR temperature sensor accurate? Answer: Yes, the TMP117AIDRVR offers high-precision temperature measurements, with an accuracy of ±0.1°C over the full temperature range.
7. What is the resolution of the TMP117AIDRVR? Answer: The TMP117AIDRVR has a resolution of 0.001°C, which provides high precision in temperature measurements.
8. Can the TMP117AIDRVR measure negative temperatures? Answer: Yes, the TMP117AIDRVR can measure temperatures in the range of -40°C to +125°C.
9. What are the typical applications of the TMP117AIDRVR? Answer: The TMP117AIDRVR is typically used in temperature-sensitive applications such as industrial monitoring, medical devices, and consumer electronics where high accuracy and low power consumption are required.
10. What is the maximum data rate for I2C communication with the TMP117AIDRVR? Answer: The TMP117AIDRVR supports I2C communication at 100 kHz (Standard Mode) and 400 kHz (Fast Mode).
11. How do I configure the I2C address for the TMP117AIDRVR? Answer: The ADDR pin is used to configure the I2C address. If the pin is connected to GND, the address will be 0x48, and if the pin is connected to VDD, the address will be 0x49.
12. What does the ALERT pin indicate in TMP117AIDRVR? Answer: The ALERT pin indicates when the temperature has crossed a defined threshold. This is useful for triggering alarms or controlling external systems based on temperature changes.
13. Can the TMP117AIDRVR be used in low-power applications? Answer: Yes, the TMP117AIDRVR is designed for low-power operation and features a low current consumption of around 10µA during normal operation.
14. How do I read temperature data from the TMP117AIDRVR? Answer: To read temperature data, you must initiate an I2C read operation. The TMP117AIDRVR will return a 16-bit temperature reading that can be converted into a temperature value in Celsius.
15. Does the TMP117AIDRVR have any calibration requirements? Answer: No, the TMP117AIDRVR comes factory-calibrated and does not require any external calibration.
16. What happens if the TMP117AIDRVR is powered below the minimum operating voltage? Answer: If the TMP117AIDRVR is powered below the minimum voltage of 1.8V, it may not function properly and could give incorrect readings or fail to communicate.
17. How do I reset the TMP117AIDRVR? Answer: To reset the TMP117AIDRVR, you can power cycle the device by turning the power off and on again or use an I2C reset command if the microcontroller supports it.
18. Can the TMP117AIDRVR be used for long-distance communication? Answer: No, the TMP117AIDRVR is designed for short-distance communication via I2C and is not suitable for long-distance communication without additional protocols or buffers.
19. Is the TMP117AIDRVR suitable for use in medical devices? Answer: Yes, the TMP117AIDRVR is suitable for medical applications where high-precision and reliability in temperature measurement are required, such as patient monitoring systems.
20. What should I do if the TMP117AIDRVR is overheating? Answer: If the TMP117AIDRVR is overheating, ensure it is within its operating temperature range of -40°C to +125°C. If the temperature exceeds the maximum range, the device may need to be replaced.
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