Overview
The TMP175AIDR is a digital temperature sensor produced by Texas Instruments. It is part of the TMPx75 family, which includes the TMP175 and TMP75 devices. These sensors are designed for thermal management and thermal protection applications, offering high accuracy and reliability over a wide temperature range.
The TMP175AIDR is particularly suited for replacing negative temperature coefficient (NTC) and positive temperature coefficient (PTC) thermistors, providing a digital output via SMBus, two-wire, and I2C interface compatibility. The device is specified for operation over a temperature range of −40 °C to +125 °C and features low quiescent current and a wide supply voltage range of 2.7 V to 5.5 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Temperature Range | −40 to +125 | °C |
| Temperature Accuracy (Typical) | ±1 | °C (−40 °C to +125 °C) |
| Temperature Accuracy (Maximum) | ±2 | °C (−40 °C to +125 °C) |
| Resolution | 9 to 12 bits (user-selectable) | |
| Supply Voltage | 2.7 to 5.5 | V |
| Average Current Consumption (Serial bus inactive) | 50 | μA |
| Shutdown Current (Serial bus inactive) | 0.1 | μA |
| Package | 8-Pin MSOP, 8-Pin SOIC | |
| Addressing Capability | Up to 27 devices on one bus (TMP175) |
Key Features
- Digital output via SMBus, two-wire, and I2C interface compatibility
- User-selectable resolution of 9 to 12 bits
- High accuracy: ±1 °C (typical) and ±2 °C (maximum) from −40 °C to +125 °C
- Low quiescent current: 50 μA (active), 0.1 μA (standby)
- Wide supply voltage range: 2.7 V to 5.5 V
- Small 8-pin MSOP and 8-pin SOIC packages
- SMBus Alert function
- 100% tested against NIST traceable sensors for TMP75 production units
Applications
- Power-supply temperature monitoring
- Computer peripheral thermal protection
- Notebook computers
- Cell phones
- Battery management
- Office machines
- Thermostat controls
- Environmental monitoring and HVAC
- Electro-mechanical device temperature monitoring
Q & A
- What is the temperature range of the TMP175AIDR?
The TMP175AIDR operates over a temperature range of −40 °C to +125 °C.
- What is the typical accuracy of the TMP175AIDR?
The typical accuracy is ±1 °C from −40 °C to +125 °C.
- What are the available resolutions for the TMP175AIDR?
The resolution is user-selectable and can be 9, 10, 11, or 12 bits.
- What is the supply voltage range for the TMP175AIDR?
The supply voltage range is 2.7 V to 5.5 V.
- How many devices can be addressed on a single bus for the TMP175?
Up to 27 devices can be addressed on a single bus.
- What are the package options for the TMP175AIDR?
The device is available in 8-pin MSOP and 8-pin SOIC packages.
- Does the TMP175AIDR support SMBus Alert function?
- What is the average current consumption of the TMP175AIDR in standby mode?
The average current consumption in standby mode is 0.1 μA.
- Are the TMP75 production units NIST traceable?
- What are some common applications of the TMP175AIDR?
