Overview
The TMP442ADCNR is a dual remote and local temperature sensor produced by Texas Instruments. This component is part of the TMP441 and TMP442 series, which are designed for remote temperature monitoring with a built-in local temperature sensor. The device is particularly useful for monitoring temperatures in various electronic systems, including microcontrollers, microprocessors, and field-programmable gate arrays (FPGAs).
Key Specifications
| Product Attribute | Attribute Value |
|---|---|
| Package / Case | SOT-23-8 |
| Number of Pins | 8 |
| Operating Temperature | -55°C to 127°C |
| Supply Voltage | 2.7V to 5.5V |
| Interface | I2C, SMBus |
| Output Type | SMBus |
| Sensor Type | Digital, Local/Remote |
| Accuracy - Highest (Lowest) | ±1°C (±2.5°C) |
| Sensing Temperature - Local | -40°C to 125°C |
| Sensing Temperature - Remote | -64°C to 191°C |
| Resolution | 11 bits |
| Operating Supply Current | 90μA |
| Quiescent Current | 700μA |
| RoHS Status | ROHS3 Compliant |
Key Features
- ±1°C remote diode sensor accuracy and ±1°C local temperature sensor accuracy
- Automatic beta compensation and series resistance cancellation
- Programmable non-ideality factor (-factor) correction
- Dual remote temperature monitors with two different interface addresses
- Two-Wire/SMBus serial interface with multiple interface addresses
- Diode fault detection
- RoHS-compliant and lead-free
- Transistor and diode model operation
- One-shot and shutdown mode
Applications
- Processor/FPGA temperature monitoring
- LCD/DLP®/LCOS projectors
- Servers
- Central office telecom equipment
- Storage Area Networks (SAN)
Q & A
- What is the package type of the TMP442ADCNR?
The TMP442ADCNR is packaged in an 8-lead SOT-23 (DCN) package.
- What is the operating temperature range of the TMP442ADCNR?
The operating temperature range is -55°C to 127°C.
- What is the supply voltage range for the TMP442ADCNR?
The supply voltage range is 2.7V to 5.5V.
- What interfaces does the TMP442ADCNR support?
The TMP442ADCNR supports I2C and SMBus interfaces.
- What is the accuracy of the remote temperature sensor?
The remote temperature sensor accuracy is ±1°C.
- Does the TMP442ADCNR have automatic beta compensation?
Yes, the TMP442ADCNR includes automatic beta compensation.
- What is the resolution of the temperature measurements?
The resolution is 11 bits.
- Is the TMP442ADCNR RoHS-compliant?
Yes, the TMP442ADCNR is ROHS3 compliant and lead-free.
- What are some common applications of the TMP442ADCNR?
Common applications include processor/FPGA temperature monitoring, LCD/DLP®/LCOS projectors, servers, central office telecom equipment, and Storage Area Networks (SAN).
- Does the TMP442ADCNR support diode fault detection?
Yes, the TMP442ADCNR includes diode fault detection.
