Overview
The TMP411CQDGKRQ1 is an automotive-grade digital temperature sensor produced by Texas Instruments. This sensor is designed for both local and remote temperature sensing, featuring advanced correction mechanisms such as N-factor and series resistance correction. It operates within a wide temperature range, from -40°C to 125°C for local sensing and -64°C to 191°C for remote sensing. The device is compliant with AEC-Q100 standards, ensuring its reliability in automotive environments. It uses an I2C/SMBus interface for communication and is packaged in an 8-VSSOP format, making it suitable for surface-mount applications in space-constrained designs.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Manufacturer | Texas Instruments | |
| Part Number | TMP411CQDGKRQ1 | |
| Package Type | 8-VSSOP | |
| Operating Temperature Range | -40°C to 125°C (local), -64°C to 191°C (remote) | °C |
| Supply Voltage Range | 2.7V to 5.5V | V |
| Interface | I2C/SMBus | |
| Local Sensor Accuracy | ±2.5°C | °C |
| Remote Sensor Accuracy | ±1°C | °C |
| Resolution | 9 to 12 bits (programmable) | bits |
| Quiescent Current | 28 to 400 μA | μA |
| Shutdown Mode Current | 3 to 10 μA | μA |
Key Features
- Automotive-Grade: Compliant with AEC-Q100 standards, ensuring reliability in automotive environments.
- Dual Sensing: Measures both local and remote temperatures.
- High Accuracy: ±2.5°C accuracy for local sensing and ±1°C for remote sensing.
- Programmable Features: Includes programmable resolution (9 to 12 bits), limits, and one-shot measurement.
- Low Power: Supports shutdown mode for power-saving applications.
- Wide Supply Range: Operates from 2.7V to 5.5V.
- Compact Package: 8-VSSOP package for space-constrained designs.
- Series Resistance Cancellation and N-Factor Correction: Enhances accuracy in remote temperature measurements.
- Alert Function: Programmable alert thresholds and diode fault detection.
- Multiple Interface Addresses: Supports multiple addresses on the SMBus interface.
Applications
The TMP411CQDGKRQ1 is primarily used in automotive applications where precise temperature monitoring is critical. It is suitable for:
- Engine management systems
- Transmission control systems
- Cabin temperature control
- Battery management systems
- Other automotive systems requiring accurate temperature sensing
Q & A
- What is the operating temperature range of the TMP411CQDGKRQ1?
The TMP411CQDGKRQ1 operates from -40°C to 125°C for local sensing and -64°C to 191°C for remote sensing.
- What is the accuracy of the local and remote temperature sensors?
The local temperature sensor has an accuracy of ±2.5°C, while the remote temperature sensor has an accuracy of ±1°C.
- What interface does the TMP411CQDGKRQ1 use for communication?
The device uses an I2C/SMBus interface for communication.
- What is the supply voltage range for the TMP411CQDGKRQ1?
The device operates from 2.7V to 5.5V.
- Does the TMP411CQDGKRQ1 support programmable features?
Yes, it supports programmable resolution, limits, and one-shot measurement.
- What is the package type of the TMP411CQDGKRQ1?
The device is packaged in an 8-VSSOP format.
- Is the TMP411CQDGKRQ1 compliant with automotive standards?
Yes, it is compliant with AEC-Q100 standards.
- Does the TMP411CQDGKRQ1 have a shutdown mode for power saving?
Yes, it supports a shutdown mode to reduce power consumption.
- What are the key correction mechanisms in the TMP411CQDGKRQ1?
The device features series resistance cancellation and N-factor correction for enhanced accuracy in remote temperature measurements.
- Does the TMP411CQDGKRQ1 have an alert function?
Yes, it has a programmable alert function with diode fault detection.
