DS28E05R+T Detailed explanation of pin function specifications and circuit principle instructions
The part number "DS28E05R+T" refers to a digital temperature sensor and microcontroller manufactured by Maxim Integrated (now part of Analog Devices). This device is part of the DS28E05 series, which is designed for high-precision temperature sensing, with features like an I²C-compatible interface .
Key Specifications & Functionality of the DS28E05R+T
Package Type: The DS28E05R+T comes in a TDFN-6 package, which is a 6-pin package. Pinout and Function Description: Below is a table with the pin functions of each of the 6 pins in the TDFN-6 package: Pin Number Pin Name Function Description 1 VDD Power Supply (typically 3V to 5.5V) 2 GND Ground (Common reference ground) 3 SDA Data Line (I²C serial data line) 4 SCL Clock Line (I²C serial clock line) 5 NC No Connection (reserved for future use) 6 ALERT Alert/Interrupt Output (indicates temperature threshold exceeded)Explanation of Each Pin's Function:
Pin 1 (VDD): The power supply pin that powers the device, typically in the range of 3.0V to 5.5V. Connect this pin to the positive side of the power supply. Pin 2 (GND): The ground pin connects to the system ground. Ensures proper electrical operation of the device by providing a reference voltage. Pin 3 (SDA): The I²C data line used for communication between the DS28E05R+T and a microcontroller. It carries data during read and write operations in an I²C protocol. Pin 4 (SCL): The I²C clock line, which synchronizes data transmission on the SDA line. The clock is typically generated by the microcontroller and used by the DS28E05R+T for synchronization. Pin 5 (NC): No Connection pin. It is reserved for possible future enhancements or used for device-specific purposes in some cases. This pin should not be connected to any signal or ground. Pin 6 (ALERT): This pin serves as an interrupt or alert output. When the temperature crosses a pre-set threshold, the device can activate this output to alert the system, allowing for real-time responses.Pinout Diagram:
This device comes in a 6-pin TDFN package (Thin Dual Flat No-lead), with the following pin configuration:
+------------+ | | | 1 2 | | | | 3 4 | | | | 5 6 | | | +------------+FAQ (Frequently Asked Questions):
Q: What is the power supply range for the DS28E05R+T? A: The DS28E05R+T operates within a power supply range of 3.0V to 5.5V. Q: What communication interface does the DS28E05R+T use? A: The DS28E05R+T uses the I²C (Inter-Integrated Circuit) communication interface for data exchange. Q: What is the ALERT pin used for? A: The ALERT pin is used to indicate when the temperature exceeds a predefined threshold, triggering an alert to the system. Q: How many pins does the DS28E05R+T have? A: The DS28E05R+T has a 6-pin TDFN package. Q: Can I use the DS28E05R+T with a 5V power supply? A: Yes, the DS28E05R+T can be powered with a 5V supply, as its operating voltage range supports 3.0V to 5.5V. Q: What is the function of the SCL and SDA pins? A: The SCL pin is the clock line for I²C communication, and the SDA pin is the data line for I²C communication. Q: Is the NC pin functional? A: No, the NC pin is not connected to any internal circuitry and is reserved for potential future use. Q: How do I connect the DS28E05R+T to my microcontroller? A: You will connect the SDA, SCL, VDD, and GND pins to the corresponding I²C lines and power supply of the microcontroller. Q: Does the DS28E05R+T have any internal memory? A: Yes, the DS28E05R+T has internal EEPROM memory for storing temperature calibration data and configuration settings. Q: How can I read the temperature from the DS28E05R+T? A: You can use I²C commands to read the temperature data from the DS28E05R+T after configuring the device for temperature measurement. Q: What temperature range can the DS28E05R+T measure? A: The DS28E05R+T can measure temperatures in the range of -40°C to +125°C. Q: Is the DS28E05R+T suitable for industrial temperature sensing? A: Yes, the DS28E05R+T is suitable for industrial applications with its wide temperature range and high accuracy. Q: How accurate is the temperature measurement of the DS28E05R+T? A: The DS28E05R+T offers high accuracy with ±0.5°C at 25°C. Q: How fast can I read temperature from the DS28E05R+T? A: Temperature readings can be obtained in 100ms to 200ms depending on the configuration. Q: Can I use multiple DS28E05R+T devices on the same I²C bus? A: Yes, you can use multiple DS28E05R+T devices on the same I²C bus, as each device has a unique serial number. Q: What should I do if the ALERT pin stays active? A: If the ALERT pin remains active, check the temperature readings and confirm whether the temperature has exceeded the set threshold. You may need to reset or adjust the threshold. Q: Does the DS28E05R+T support continuous temperature monitoring? A: Yes, the DS28E05R+T supports continuous temperature monitoring through periodic I²C readings. Q: What is the maximum clock speed for I²C communication with the DS28E05R+T? A: The DS28E05R+T supports I²C clock speeds of up to 400 kHz (Fast Mode). Q: Can I use the DS28E05R+T in battery-powered applications? A: Yes, the DS28E05R+T is power-efficient and can be used in low-power battery-operated applications. Q: How do I reset the DS28E05R+T? A: The DS28E05R+T can be reset through the I²C communication interface or by toggling the VDD pin.This covers all the pin functions, package details, and provides a comprehensive FAQ section related to the DS28E05R+T.