Overview
The LM50CIM3/NOPB is a precision integrated-circuit temperature sensor manufactured by Texas Instruments. This device is designed to sense temperatures within the range of –40°C to 125°C using a single positive supply. It is packaged in a compact SOT-23 enclosure, making it suitable for a variety of applications where space is limited. The LM50CIM3/NOPB is known for its high accuracy, low power consumption, and ease of use in single-supply environments, making it a popular choice for thermal management in various industries.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 4.5 to 10 | V |
| Operating Temperature Range | –40 to 125 | °C |
| Accuracy at 25°C | ±2°C | |
| Accuracy over Full Range | ±3°C to ±4°C | |
| Output Scale Factor | 10 mV/°C | |
| DC Offset | 500 mV | |
| Quiescent Current | < 130 µA | |
| Self-Heating | < 0.2°C in still air | |
| Package Type | SOT-23 | |
| Thermal Resistance (Junction-to-Ambient) | 291.9 °C/W |
Key Features
- Calibrated directly in degrees Celsius with a linear +10 mV/°C scale factor.
- Operates from a single positive supply voltage of 4.5 V to 10 V.
- Low power consumption with a quiescent current of less than 130 µA.
- Low self-heating, less than 0.2°C in still air.
- High accuracy with ±2°C specified at 25°C and ±3°C to ±4°C over the full temperature range.
- No external calibration or trimming required due to wafer-level trimming.
- Suitable for remote applications and has a low cost due to the wafer-level trimming process.
- UL recognized component and AEC-Q100 Grade 1 qualified for automotive applications.
Applications
- Automotive systems for temperature monitoring.
- Computers and disk drives for thermal management.
- Battery management systems to monitor temperature.
- FAX machines and printers for temperature sensing.
- Portable medical instruments requiring precise temperature monitoring.
- HVAC systems for temperature control.
- Power supply modules to ensure safe operating temperatures.
Q & A
- What is the operating temperature range of the LM50CIM3/NOPB?
The operating temperature range is –40°C to 125°C.
- What is the supply voltage range for the LM50CIM3/NOPB?
The supply voltage range is 4.5 V to 10 V.
- What is the output scale factor of the LM50CIM3/NOPB?
The output scale factor is 10 mV/°C.
- Does the LM50CIM3/NOPB require external calibration?
No, it does not require external calibration due to wafer-level trimming.
- What is the quiescent current of the LM50CIM3/NOPB?
The quiescent current is less than 130 µA.
- What is the self-heating of the LM50CIM3/NOPB in still air?
The self-heating is less than 0.2°C in still air.
- What is the package type of the LM50CIM3/NOPB?
The package type is SOT-23.
- Is the LM50CIM3/NOPB suitable for automotive applications?
- What are some common applications of the LM50CIM3/NOPB?
Common applications include automotive systems, computers, disk drives, battery management, FAX machines, printers, portable medical instruments, HVAC systems, and power supply modules.
- Does the LM50CIM3/NOPB have any thermal resistance specifications?
