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TMP421AIDCNT
+BOMSENSOR DIGITAL -40C-125C SOT23-8
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ManufacturerTexas Instruments
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Mfr. Part #TMP421AIDCNT
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Datasheet TMP421AIDCNT DataSheet
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In Stock7703
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Specifications
| Attribute | Value |
| Part Status | Obsolete |
| 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 |
| Package / Case | SOT-23-8 |
| Supplier Device Package | SOT-23-8 |
| Base Product Number | TMP421 |
Overview
Description
Key features include high precision, low power consumption, and an alert function that can trigger responses to temperature thresholds. The sensor operates over a wide temperature range and is known for its reliability in providing both local and remote temperature readings. Its compact design and compatibility with standard communication protocols make it versatile for integration into different systems. Typically, it finds applications in thermal management systems where accurate temperature monitoring and control are crucial.
Equivalent
1. LM95234 by Texas Instruments - Multi-channel temperature sensor.
2. ADT7461A by Analog Devices - Digital temperature sensor with remote diode sensing.
3. MAX6657/MAX6658/MAX6659 by Maxim Integrated (now part of Analog Devices) - Remote/junction temperature sensors.
4. LTC2997 by Analog Devices - Temperature sensor with a remote diode.
These alternatives offer similar functionalities but may vary in specific features and parameters.
Features
1. High Accuracy: It offers high accuracy temperature measurements with minimal error across a wide temperature range.
2. Multiple Channels: It supports multiple remote temperature sensing channels, allowing it to monitor several points simultaneously.
3. Digital Interface: The sensor uses a two-wire I2C/SMBus-compatible interface for easy integration with digital systems.
4. Wide Temperature Range: It can measure temperatures ranging from -40°C to +125°C, suitable for various environments.
5. Low Power Consumption: The device is designed for low power operation, making it suitable for battery-powered applications.
6. Programmable Features: Includes programmable alert thresholds and conversion rates, enabling customized operation.
7. Compact Package: Available in a small package size, which is ideal for space-constrained applications.
8. Robust Performance: It features good linearity and repeatability, ensuring reliable performance over time.
These features make the TMP421AIDCNT suitable for a range of applications, including consumer electronics, industrial systems, and environmental monitoring.
Pinout
Key functions and features include:
1. Temperature Sensing: It measures the temperature of external diodes, often used for monitoring the temperature of other ICs or system components.
2. I2C/SMBus Interface: It communicates temperature data via a digital I2C/SMBus-compatible two-wire interface, facilitating easy integration into systems.
3. Wide Temperature Range: It is designed to operate over a wide temperature range, making it suitable for various industrial and commercial applications.
4. High Accuracy: Offers high accuracy temperature readings, which is crucial for applications requiring precise thermal management.
5. Low Power Consumption: Ideal for battery-powered or energy-efficient systems.
These features make the TMP421AIDCNT a versatile component in temperature monitoring and management solutions in electronics.