Overview
The LM75BIMX-5/NOPB is a digital temperature sensor and thermal watchdog produced by Texas Instruments. It is part of the LM75 series, which includes industry-standard digital temperature sensors with integrated Sigma-Delta analog-to-digital converters and I2C interfaces. This component is designed to provide accurate temperature readings and is suitable for a wide range of applications where thermal management is critical.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 3 V to 5.5 V | V |
| Operating Temperature Range | -55°C to 125°C | °C |
| Temperature Accuracy | ±2°C (-25°C to 100°C), ±3°C (-55°C to 125°C) | °C |
| Resolution | 9 bits | bits |
| Supply Current (Operating) | 280 μA (typical) | μA |
| Supply Current (Shutdown) | 4 μA (typical) | μA |
| I2C Interface Frequency | Up to 400 kHz | kHz |
| Address Pins | 3 (allowing up to 8 devices on the same bus) | - |
| Package Type | SOIC (8) or VSSOP (8) | - |
Key Features
- No external components required for operation.
- Shutdown mode to minimize power consumption.
- Up to eight LM75 devices can be connected to a single I2C bus.
- Dedicated over-temperature output (O.S.) with programmable limit and hysteresis.
- Programmable fault tolerance for defining the number of consecutive error conditions before O.S. is activated.
- Integrated low-pass filters on SDA and SCL lines for improved communication reliability in noisy environments (LM75B specific).
- Bus fault timeout feature (LM75B specific).
- UL recognized component.
Applications
- General system thermal management.
- Communications infrastructure.
- Electronic test equipment.
- Office electronics.
- Personal computers.
- Environmental monitoring.
Q & A
- What is the operating temperature range of the LM75BIMX-5/NOPB?
The operating temperature range is -55°C to 125°C.
- What is the accuracy of the temperature readings provided by the LM75BIMX-5/NOPB?
The accuracy is ±2°C from -25°C to 100°C and ±3°C over -55°C to 125°C.
- What is the resolution of the temperature readings?
The resolution is 9 bits.
- What is the typical supply current in operating mode?
The typical supply current is 280 μA.
- How many LM75 devices can be connected to a single I2C bus?
Up to eight LM75 devices can be connected to a single I2C bus.
- What is the purpose of the dedicated over-temperature output (O.S.)?
The O.S. output is used to indicate over-temperature conditions with programmable limit and hysteresis.
- Does the LM75BIMX-5/NOPB have any special features for improving communication reliability?
Yes, the LM75B has integrated low-pass filters on the SDA and SCL lines and a bus fault timeout feature.
- What is the supply voltage range for the LM75BIMX-5/NOPB?
The supply voltage range is 3 V to 5.5 V.
- What are some common applications for the LM75BIMX-5/NOPB?
Common applications include general system thermal management, communications infrastructure, electronic test equipment, office electronics, personal computers, and environmental monitoring.
- Is the LM75BIMX-5/NOPB UL recognized?
Yes, the LM75BIMX-5/NOPB is UL recognized.
