Спецификации
| Атрибут | Ценность |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Sensor Type | Digital, Local/Remote |
| Sensing Temperature - Local | -40°C ~ 125°C |
| Sensing Temperature - Remote | -64°C ~ 191°C |
| Output Type | SMBus |
| Voltage - Supply | 2.7V ~ 5.5V |
| Resolution | 11 b |
| Features | One-Shot, Output Switch, Programmable Limit, Shutdown Mode |
| Accuracy - Highest(Lowest) | ±1.5°C (±2.5°C) |
| Test Condition | 15°C ~ 85°C (-40°C ~ 125°C) |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
Обзор
Description
The TMP421AIDCNR is a high-precision temperature sensor from Texas Instruments, part of their TMP421 series. It is designed for applications requiring accurate temperature monitoring, featuring a digital output that communicates over an I²C or SMBus interface. This sensor offers a wide operating temperature range and supports remote sensing capabilities, allowing it to monitor the temperature of a single remote location as well as its own local temperature. The TMP421AIDCNR is commonly used in computing, telecommunications, and industrial environments where reliable temperature measurements are critical. It is housed in a compact package, making it suitable for space-constrained applications. The device is known for its low power consumption, precision, and ease of integration into various systems.
Equivalent
The TMP421AIDCNR is a digital temperature sensor. Equivalent products include the LM75A from NXP, the MAX31725 from Maxim Integrated, and the MCP9808 from Microchip Technology. These alternatives offer similar functionality, such as digital temperature sensing with an I2C interface, and are suitable for applications requiring temperature monitoring and control. When selecting an equivalent, ensure to compare specifications like accuracy, temperature range, and power supply compatibility to match your specific application needs.
Features
The TMP421AIDCNR is a precision temperature sensor from Texas Instruments. It features remote and local temperature sensing capabilities, allowing it to measure temperature with an integrated local sensor and monitor external temperature sensors, such as diodes or transistors, remotely. The device operates over a wide temperature range, from -40°C to 125°C.
Key features include:
1. Remote Temperature Sensing: Capable of interfacing with up to two remote temperature sensors for precise measurements.
2. Local Temperature Monitoring: Includes an on-chip sensor for ambient temperature detection.
3. Accuracy: Provides high accuracy with a remote sensor error of ±1°C and a local sensor error of ±2°C.
4. Interface: Communicates via an I2C/SMBus-compatible interface, supporting data rates up to 3.4 MHz.
5. Low Power Consumption: Designed for energy efficiency, making it suitable for battery-operated devices.
6. Supply Voltage: Operates with a supply voltage range from 1.7V to 3.6V.
7. Applications: Widely used in various applications, including computing systems, industrial controls, and consumer electronics.
These features make the TMP421AIDCNR an excellent choice for precise thermal management solutions.
Key features include:
1. Remote Temperature Sensing: Capable of interfacing with up to two remote temperature sensors for precise measurements.
2. Local Temperature Monitoring: Includes an on-chip sensor for ambient temperature detection.
3. Accuracy: Provides high accuracy with a remote sensor error of ±1°C and a local sensor error of ±2°C.
4. Interface: Communicates via an I2C/SMBus-compatible interface, supporting data rates up to 3.4 MHz.
5. Low Power Consumption: Designed for energy efficiency, making it suitable for battery-operated devices.
6. Supply Voltage: Operates with a supply voltage range from 1.7V to 3.6V.
7. Applications: Widely used in various applications, including computing systems, industrial controls, and consumer electronics.
These features make the TMP421AIDCNR an excellent choice for precise thermal management solutions.
Pinout
The TMP421AIDCNR is a digital temperature sensor from Texas Instruments, typically housed in a small package with an 8-pin configuration. Here's a concise overview of its pin functions:
1. V+: Supply voltage pin.
2. GND: Ground pin.
3. DXP: Positive connection for the remote temperature sensing diode.
4. DXN: Negative connection for the remote temperature sensing diode, often connected to ground.
5. SDA: Serial data line, used for I²C communication.
6. SCL: Serial clock line, used for I²C communication.
7. ALERT: Open-drain output, used for temperature alert signaling.
8. ADD0: Address select pin, used to set the I²C address.
This sensor is commonly used for precise temperature monitoring in electronic systems, supporting remote temperature sensing via a diode-connected transistor, alongside local temperature sensing. The I²C-compatible digital interface facilitates easy integration into various digital systems for monitoring and control.
1. V+: Supply voltage pin.
2. GND: Ground pin.
3. DXP: Positive connection for the remote temperature sensing diode.
4. DXN: Negative connection for the remote temperature sensing diode, often connected to ground.
5. SDA: Serial data line, used for I²C communication.
6. SCL: Serial clock line, used for I²C communication.
7. ALERT: Open-drain output, used for temperature alert signaling.
8. ADD0: Address select pin, used to set the I²C address.
This sensor is commonly used for precise temperature monitoring in electronic systems, supporting remote temperature sensing via a diode-connected transistor, alongside local temperature sensing. The I²C-compatible digital interface facilitates easy integration into various digital systems for monitoring and control.
Manufacturer
The TMP421AIDCNR is manufactured by Texas Instruments (TI), a global semiconductor company. Texas Instruments is known for designing and manufacturing a wide range of semiconductor devices, including integrated circuits, processors, and sensors. The company focuses on analog and embedded processing products and serves various industries such as consumer electronics, automotive, telecommunications, and industrial applications. TI is one of the largest and most well-established companies in the semiconductor industry, and it is headquartered in Dallas, Texas.
Application
The TMP421AIDCNR is a temperature sensor used in various applications due to its accuracy and digital output. Common application areas include:
1. Environmental Monitoring: Used in HVAC systems for precise temperature control.
2. Consumer Electronics: Helps manage thermal conditions in smartphones, laptops, and tablets.
3. Industrial Automation: Monitors equipment temperature in manufacturing and process control environments.
4. Data Centers: Ensures optimal thermal management for servers and storage systems.
5. Medical Devices: Provides temperature monitoring for diagnostic equipment.
6. Automotive: Assists in climate control and battery management systems.
Overall, it's valued for its reliability and ease of integration in various electronic systems.
1. Environmental Monitoring: Used in HVAC systems for precise temperature control.
2. Consumer Electronics: Helps manage thermal conditions in smartphones, laptops, and tablets.
3. Industrial Automation: Monitors equipment temperature in manufacturing and process control environments.
4. Data Centers: Ensures optimal thermal management for servers and storage systems.
5. Medical Devices: Provides temperature monitoring for diagnostic equipment.
6. Automotive: Assists in climate control and battery management systems.
Overall, it's valued for its reliability and ease of integration in various electronic systems.
Package
The TMP421AIDCNR is a digital temperature sensor from Texas Instruments, packaged in a SOT-23-8 (Small Outline Transistor) package. This type of package is compact and suitable for surface-mount technology, making it ideal for applications requiring small form factors.
