Overview
The TMP121AIDBVT, produced by Texas Instruments, is a highly accurate digital temperature sensor designed for a wide range of thermal management and thermal protection applications. This device is part of the TMP121 series, which features an SPI-compatible interface and operates within a supply voltage range of 2.7V to 5.5V. The TMP121AIDBVT is packaged in a tiny SOT23-6 package, making it ideal for space-constrained and low-power applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Temperature Range | −40°C to +125°C | °C |
| Accuracy | ±1.5°C (−25°C to +85°C) | °C |
| Resolution | 12-bit + sign, 0.0625°C | |
| Supply Voltage | 2.7V to 5.5V | V |
| Quiescent Current | 50µA (max) | µA |
| Shutdown Current | 0.1µA to 1µA | µA |
| Package Type | SOT23-6 | |
| Conversion Time | 240ms to 320ms | ms |
| Conversion Period | 480ms to 640ms | ms |
Key Features
- SPI-compatible interface for easy communication.
- High accuracy: ±1.5°C from −25°C to +85°C.
- Low quiescent current: 50µA (max) during active conversion.
- Wide supply voltage range: 2.7V to 5.5V.
- Tiny SOT23-6 package, ideal for space-constrained applications.
- No external components required for operation.
- Hardware shutdown for additional power savings.
Applications
- Power supply temperature monitoring.
- Computer peripheral thermal protection.
- Notebook computers.
- Cell phones.
- Battery management.
- Office machines.
- Extended thermal measurement in various communication, computer, consumer, environmental, industrial, and instrumentation applications.
Q & A
- What is the temperature accuracy of the TMP121AIDBVT? The temperature accuracy is ±1.5°C from −25°C to +85°C.
- What is the resolution of the TMP121AIDBVT? The resolution is 12-bit + sign, with a step size of 0.0625°C.
- What is the supply voltage range for the TMP121AIDBVT? The supply voltage range is 2.7V to 5.5V.
- How much quiescent current does the TMP121AIDBVT consume? The quiescent current is 50µA (max) during active conversion.
- What is the package type of the TMP121AIDBVT? The package type is SOT23-6.
- Does the TMP121AIDBVT require any external components for operation? No, it does not require any external components, though a 0.1µF supply bypass capacitor is recommended.
- What is the conversion time for the TMP121AIDBVT? The conversion time is between 240ms and 320ms.
- How does the TMP121AIDBVT communicate with other devices? It communicates through an SPI-compatible serial interface.
- What are some typical applications of the TMP121AIDBVT? Typical applications include power supply temperature monitoring, computer peripheral thermal protection, notebook computers, cell phones, battery management, and office machines.
- What is the shutdown current of the TMP121AIDBVT? The shutdown current is between 0.1µA and 1µA.
