Overview
The TMP421AIDCNR, produced by Texas Instruments, is a remote and local temperature sensor with advanced features such as N-factor and series-R correction. This device is part of the TMP421 series, which includes the TMP422 and TMP423 models. It is designed to monitor both remote and local temperatures with high accuracy and is available in SOT23-8 and DSBGA (WCSP) packages. The TMP421AIDCNR is particularly useful in applications requiring precise temperature monitoring without the need for calibration.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOT23-8, DSBGA (WCSP) |
| Number of Pins | 8 |
| Remote Temperature Accuracy | ±1°C (max) |
| Local Temperature Accuracy | ±1.5°C (max) |
| Operating Temperature Range | -40°C to 125°C |
| Supply Voltage | 2.7V to 5.5V |
| Supply Current (Typical) | 400 μA |
| Remote Temperature Measurement Range | -40°C to +150°C |
| Remote Temperature Resolution | 12 bits |
| Interface | I2C, SMBus |
| Series Resistance Correction | Yes |
| n-Factor Correction | Yes |
| Diode Fault Detection | Yes |
| RoHS Compliance | Yes |
Key Features
- High Accuracy: ±1°C remote and ±1.5°C local temperature accuracy without calibration.
- Advanced Correction: Series resistance cancellation and programmable non-ideality factor (n-factor) correction.
- Wide Temperature Range: Remote temperature measurement range up to +150°C.
- Interface Options: Two-wire/SMBus serial interface with multiple interface addresses.
- Diode Fault Detection: Built-in diode fault detection for enhanced reliability.
- Low Power Consumption: Typical supply current of 400 μA.
- Compact Packages: Available in SOT23-8 and DSBGA (WCSP) packages.
- RoHS Compliance: Compliant with RoHS and free of Sb/Br.
Applications
- Processor/FPGA Temperature Monitoring: Ideal for monitoring temperatures in microprocessors, microcontrollers, and FPGAs.
- Server and Data Center Equipment: Used in servers, central office telecom equipment, and storage area networks (SAN).
- Display Systems: Suitable for LCD, DLP®, and LCOS projectors.
- Industrial and Automotive Systems: Can be used in various industrial and automotive applications requiring precise temperature monitoring.
Q & A
- What is the remote temperature accuracy of the TMP421AIDCNR?
The remote temperature accuracy is ±1°C (max).
- What are the available package types for the TMP421AIDCNR?
The TMP421AIDCNR is available in SOT23-8 and DSBGA (WCSP) packages.
- What is the operating temperature range of the TMP421AIDCNR?
The operating temperature range is -40°C to 125°C.
- Does the TMP421AIDCNR support series resistance cancellation?
Yes, it supports series resistance cancellation.
- What interface options are available for the TMP421AIDCNR?
The device supports I2C and SMBus serial interfaces.
- Is the TMP421AIDCNR RoHS compliant?
Yes, it is RoHS compliant and free of Sb/Br.
- What is the typical supply current of the TMP421AIDCNR?
The typical supply current is 400 μA.
- Does the TMP421AIDCNR have built-in diode fault detection?
Yes, it has built-in diode fault detection.
- What is the remote temperature measurement range of the TMP421AIDCNR?
The remote temperature measurement range is -40°C to +150°C.
- Can the TMP421AIDCNR be used in industrial applications?
Yes, it can be used in various industrial applications requiring precise temperature monitoring.
