Overview
The TMP101NA/250G4, produced by Texas Instruments, is a digital temperature sensor designed for precise temperature measurement across a wide range of applications. This device is part of the TMP101 series, which offers high accuracy and reliability without the need for calibration or external signal conditioning. The TMP101NA/250G4 features an I2C/SMBus interface, making it compatible with various communication protocols. It is packaged in a 6-pin SOT-23 package, which is compact and suitable for surface mount applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 9 to 12 Bits (User-Selectable) | |
| Accuracy | ±1°C (Typical), ±2°C (Maximum) from –55°C to 125°C | °C |
| Supply Voltage | 2.7 V to 5.5 V | V |
| Quiescent Current | 45 µA (Active), 0.1 µA (Standby) | µA |
| Operating Temperature Range | –55°C to 125°C | °C |
| Package Type | 6-Pin SOT-23 | |
| Interface Compatibility | SMBus, Two-Wire, I2C | |
| Address Pins | One Address Pin and an ALERT Pin |
Key Features
- High Accuracy: Typical accuracy of ±1°C and maximum accuracy of ±2°C from –55°C to 125°C without requiring calibration or external signal conditioning.
- Programmable Resolution: User-selectable resolution from 9 to 12 bits.
- Low Power Consumption: Low quiescent current of 45 µA in active mode and 0.1 µA in standby mode.
- Wide Supply Range: Operates with a supply voltage range of 2.7 V to 5.5 V.
- Alert Function: Features an SMBus Alert function for overtemperature alerts.
- Compact Package: Available in a 6-pin SOT-23 package, suitable for surface mount applications.
- Interface Compatibility: Compatible with SMBus, Two-Wire, and I2C interfaces.
Applications
- Communication Equipment: Ideal for temperature monitoring in communication devices.
- Computer and Consumer Electronics: Used in thermal management and protection for computers, notebooks, and consumer electronics.
- Industrial and Instrumentation: Suitable for industrial and instrumentation applications requiring precise temperature measurement.
- Environmental Monitoring: Used in environmental monitoring and HVAC systems.
- Power-Supply Temperature Monitoring: Monitors temperature in power supplies and battery management systems.
Q & A
- What is the typical accuracy of the TMP101NA/250G4?
The typical accuracy is ±1°C from –55°C to 125°C.
- What are the available resolutions for the TMP101NA/250G4?
The resolutions are user-selectable from 9 to 12 bits.
- What is the supply voltage range for the TMP101NA/250G4?
The supply voltage range is 2.7 V to 5.5 V.
- What is the quiescent current of the TMP101NA/250G4 in active and standby modes?
The quiescent current is 45 µA in active mode and 0.1 µA in standby mode.
- What type of interface does the TMP101NA/250G4 support?
The device supports SMBus, Two-Wire, and I2C interfaces.
- What is the package type of the TMP101NA/250G4?
The device is packaged in a 6-pin SOT-23 package.
- Does the TMP101NA/250G4 have an alert function?
Yes, it features an SMBus Alert function for overtemperature alerts.
- What are some common applications of the TMP101NA/250G4?
Common applications include communication equipment, computer and consumer electronics, industrial and instrumentation, environmental monitoring, and power-supply temperature monitoring.
- Is the TMP101NA/250G4 RoHS compliant?
Yes, the device is lead-free and RoHS compliant.
- What is the operating temperature range of the TMP101NA/250G4?
The operating temperature range is –55°C to 125°C.
