Overview
The TMP175AIDGKR, produced by Texas Instruments, is a digital temperature sensor designed for precise temperature measurement and thermal management. This device is part of the TMPx75 family, which includes the TMP175 and TMP75 models. It operates over a wide temperature range of −40 °C to +125 °C and is highly accurate, with a typical accuracy of ±1 °C and a maximum accuracy of ±2 °C within this range. The TMP175AIDGKR is ideal for replacing negative temperature coefficient (NTC) and positive temperature coefficient (PTC) thermistors, offering high linearity and no need for external component signal conditioning or complex calculations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Temperature Range | −40 to +125 | °C |
| Temperature Accuracy (Typical) | ±1 | °C |
| Temperature Accuracy (Maximum) | ±2 | °C |
| Resolution | 9 to 12 bits (user-selectable) | |
| Temperature Resolution | 0.0625 | °C |
| 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 Type | 8-Pin MSOP and 8-Pin SOIC | |
| Interface Compatibility | SMBus, Two-Wire, and I2C |
Key Features
- Digital output via SMBus, two-wire, and I2C interfaces
- User-selectable resolution of 9 to 12 bits
- High accuracy without requiring calibration or external component signal conditioning
- Low quiescent current: 50 μA active, 0.1 μA standby
- Wide supply range: 2.7 V to 5.5 V
- Small 8-pin MSOP and SOIC packages
- SMBus Alert function for overtemperature alerts
- Up to 27 devices can be addressed on a single bus for the TMP175 model
- NIST traceable production units for the TMP75 model
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 TMP175AIDGKR?
The TMP175AIDGKR operates over a temperature range of −40 °C to +125 °C.
- What is the typical accuracy of the TMP175AIDGKR?
The typical accuracy is ±1 °C from −40 °C to +125 °C.
- What are the available resolutions for the TMP175AIDGKR?
The resolution is user-selectable from 9 to 12 bits.
- What is the supply voltage range for the TMP175AIDGKR?
The supply voltage range is 2.7 V to 5.5 V.
- What are the typical current consumption values for the TMP175AIDGKR?
The average current consumption is 50 μA when the serial bus is inactive, and 0.1 μA in shutdown mode.
- What interfaces does the TMP175AIDGKR support?
The device supports SMBus, two-wire, and I2C interfaces.
- How many devices can be addressed on a single bus for the TMP175 model?
Up to 27 devices can be addressed on a single bus for the TMP175 model.
- Are the TMP75 production units NIST traceable?
- What are some common applications for the TMP175AIDGKR?
- What is the SMBus Alert function in the TMP175AIDGKR?
The SMBus Alert function provides an overtemperature alert, allowing the device to signal when the temperature exceeds or falls below set thresholds.
