Overview
The TMP100NA/250G4, produced by Texas Instruments, is a digital temperature sensor designed for precise thermal management and protection. This device is part of the TMP100 and TMP101 series, which are highly linear and do not require complex calculations or look-up tables to derive the temperature. The TMP100NA/250G4 operates over a wide temperature range of –55°C to 125°C and features a 12-bit ADC, providing resolutions down to 0.0625°C. It is compatible with SMBus, Two-Wire, and I2C interfaces, making it versatile for various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature Range | –55 to 125 | °C |
| Storage Temperature Range | –60 to 150 | °C |
| Power Supply Range | 2.7 to 5.5 | V |
| Quiescent Current (Serial Bus Inactive) | 45 to 75 | μA |
| Shutdown Current (Serial Bus Inactive) | 0.1 to 13 | μA |
| Resolution | 9, 10, 11, or 12 bits | |
| Conversion Time (12-bit resolution) | 320 to 600 | ms |
| Accuracy (Typical) | ±1°C | |
| Package Type | 6-Pin SOT-23 | |
| Interface Compatibility | SMBus, Two-Wire, I2C |
Key Features
- High Accuracy: Typical accuracy of ±1°C without requiring calibration or external component signal conditioning.
- Low Quiescent Current: 45-μA in active mode and 0.1-μA in standby mode.
- Wide Supply Range: Operates from 2.7 V to 5.5 V.
- Multiple Resolution Options: Selectable resolution of 9, 10, 11, or 12 bits.
- Interface Compatibility: Supports SMBus, Two-Wire, and I2C interfaces with fast and high-speed modes up to 2 MHz.
- Alert Function: Features an ALERT pin for temperature alerts.
- Compact Package: Available in a 6-Pin SOT-23 package.
Applications
- Power-Supply Temperature Monitoring: Ideal for monitoring temperatures in power supplies.
- Computer Peripheral Thermal Protection: Used in thermal protection for computer peripherals.
- Notebook Computers and Cell Phones: Suitable for temperature monitoring in portable electronics.
- Battery Management: Used in battery management systems to monitor temperature.
- Office Machines and Environmental Monitoring: Applied in office equipment and environmental monitoring systems.
- Thermostat Controls and HVAC: Utilized in thermostat controls and heating, ventilation, and air conditioning (HVAC) systems.
Q & A
- What is the operating temperature range of the TMP100NA/250G4?
The operating temperature range is –55°C to 125°C.
- What are the power supply requirements for the TMP100NA/250G4?
The device operates from a power supply range of 2.7 V to 5.5 V.
- What is the typical accuracy of the TMP100NA/250G4?
The typical accuracy is ±1°C.
- What interfaces does the TMP100NA/250G4 support?
The device supports SMBus, Two-Wire, and I2C interfaces.
- What are the available resolution options for the TMP100NA/250G4?
The device offers selectable resolutions of 9, 10, 11, or 12 bits.
- What is the quiescent current of the TMP100NA/250G4 in active mode?
The quiescent current in active mode is 45-μA.
- What is the package type of the TMP100NA/250G4?
The device is available in a 6-Pin SOT-23 package.
- Does the TMP100NA/250G4 have an alert function?
Yes, it features an ALERT pin for temperature alerts.
- What are some common applications of the TMP100NA/250G4?
Common applications include power-supply temperature monitoring, computer peripheral thermal protection, notebook computers, cell phones, battery management, office machines, environmental monitoring, thermostat controls, and HVAC systems.
- How does the TMP100NA/250G4 handle high-speed mode on the I2C bus?
The device switches to high-speed mode (up to 2 MHz) after receiving the Hs-mode master code and reverts to fast mode upon receiving a STOP condition.
