Overview
The TMP468AIRGTR is a high-accuracy, multi-zone digital temperature sensor produced by Texas Instruments. This device combines a local temperature measurement channel with eight remote-junction temperature measurement channels, making it ideal for monitoring temperatures across various components in complex systems such as servers, telecommunications equipment, and other industrial applications. The TMP468 features a two-wire interface compatible with I2C or SMBus, and it is available in 16-pin VQFN and 16-bump DSBGA packages, offering a compact and space-efficient design.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 16-Pin VQFN, 16-Bump DSBGA |
| Package Size | 3 mm × 3 mm (VQFN), 1.6 mm × 1.6 mm (DSBGA) |
| Operating Temperature Range | -40°C to 125°C (local), -55°C to 150°C (remote) |
| Supply Voltage | 1.7 V to 3.6 V |
| Operating Current | 67 µA (1 SPS, all channels active) |
| Shutdown Current | 0.3 µA |
| Temperature Accuracy | ±0.75°C (maximum) |
| Temperature Resolution | 0.0625°C |
| Interface | I2C or SMBus compatible two-wire interface |
| Remote Diode Features | Series resistance cancellation, η-factor correction, offset correction, and diode fault detection |
Key Features
- High accuracy temperature measurement with ±0.75°C accuracy and 0.0625°C resolution.
- Supports local and remote temperature sensing with up to eight remote diode-connected temperature zones.
- Low power consumption with 67 µA operating current and 0.3 µA shutdown current.
- I2C or SMBus compatible two-wire interface with pin-programmable address options.
- Advanced features include series resistance cancellation, η-factor correction, offset correction, and diode fault detection.
- Programmable temperature limits and hysteresis settings to avoid constant toggling around thresholds.
- Register lock function to secure key registers).
- Exposed pad package for improved thermal performance and reliability).
Applications
- Industrial equipment: Monitoring temperatures in industrial control systems and machinery).
- Medical devices: Precise temperature monitoring in medical equipment and diagnostic tools).
- Consumer electronics: Temperature monitoring in consumer electronics such as smartphones, laptops, and gaming consoles).
- Automotive electronics: Monitoring temperatures in automotive systems, including engine management and safety systems).
- Aerospace and defense systems: Critical temperature monitoring in aerospace and defense applications).
- Servers and telecommunications equipment: Monitoring temperatures across different processors like MCUs, GPUs, and FPGAs).
Q & A
- What is the temperature accuracy of the TMP468AIRGTR? The TMP468AIRGTR has a temperature accuracy of ±0.75°C.
- What is the temperature resolution of the TMP468AIRGTR? The temperature resolution is 0.0625°C).
- What are the supported supply voltage ranges for the TMP468AIRGTR? The device supports supply voltages from 1.7 V to 3.6 V).
- What types of packages are available for the TMP468AIRGTR? The device is available in 16-pin VQFN and 16-bump DSBGA packages).
- What is the operating current of the TMP468AIRGTR? The operating current is 67 µA when all channels are active at 1 SPS).
- Does the TMP468AIRGTR support remote temperature sensing? Yes, it supports up to eight remote diode-connected temperature zones).
- What are the advanced features of the remote diode in the TMP468AIRGTR? The remote diode features include series resistance cancellation, η-factor correction, offset correction, and diode fault detection).
- Is the TMP468AIRGTR compatible with I2C or SMBus interfaces? Yes, it is compatible with both I2C and SMBus interfaces).
- What are the typical applications of the TMP468AIRGTR? Typical applications include industrial equipment, medical devices, consumer electronics, automotive electronics, and aerospace and defense systems).
- Is the TMP468AIRGTR RoHS compliant? Yes, the TMP468AIRGTR is RoHS3 compliant).
