Overview
The LM75BIMX-3/NOPB is a digital temperature sensor and thermal watchdog produced by Texas Instruments. This component is designed to provide accurate temperature readings and is widely used in various applications where thermal management is critical. It operates over a wide temperature range of –55°C to 125°C and is available in an SOIC-8 package. The LM75BIMX-3/NOPB is part of the LM75 series, which is known for its reliability and versatility in different environmental conditions.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | SOIC-8 | |
| Supply Voltage | 3 V to 5.5 V | |
| Operating Current | 280 μA (typical) | |
| Shutdown Current | 4 μA (typical) | |
| Temperature Accuracy | ±2°C from –25°C to 100°C, ±3°C from –55°C to 125°C | |
| Temperature Resolution | 9 bits | |
| Temperature Conversion Time | 100 ms | |
| I2C Interface | Up to 400 kHz | |
| Address Pins | Three address pins, allowing up to eight devices on the same bus | |
| Over-Temperature Output (O.S.) | Programmable limit and hysteresis |
Key Features
- Digital temperature sensor with a Sigma-Delta analog-to-digital converter and I2C interface.
- Operates with a single supply from 3 V to 5.5 V.
- Provides 9-bit digital temperature readings with high accuracy.
- Integrated low-pass filters on SDA and SCL lines for improved communication reliability in noisy environments.
- Bus fault timeout feature to reset the device to the IDLE state if the SDA line is held low for too long.
- Programmable over-temperature output (O.S.) with fault tolerance and hysteresis.
- Supports up to eight devices on the same 2-wire bus using three address pins.
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-3/NOPB?
The LM75BIMX-3/NOPB operates over a temperature range of –55°C to 125°C. - What is the typical operating current of the LM75BIMX-3/NOPB?
The typical operating current is 280 μA. - What is the resolution of the temperature readings provided by the LM75BIMX-3/NOPB?
The temperature resolution is 9 bits. - How does the LM75BIMX-3/NOPB communicate with other devices?
Communication is accomplished over a 2-wire I2C interface that operates up to 400 kHz. - Can multiple LM75BIMX-3/NOPB devices be used on the same bus?
Yes, up to eight devices can operate on the same 2-wire bus using three address pins. - What is the purpose of the over-temperature output (O.S.) in the LM75BIMX-3/NOPB?
The O.S. output is programmable and can be set to trigger based on user-defined temperature limits and hysteresis. - What package type is the LM75BIMX-3/NOPB available in?
The LM75BIMX-3/NOPB is available in an SOIC-8 package. - Is the LM75BIMX-3/NOPB compliant with RoHS regulations?
Yes, the LM75BIMX-3/NOPB is RoHS compliant. - What is the supply voltage range for the LM75BIMX-3/NOPB?
The supply voltage range is from 3 V to 5.5 V. - Does the LM75BIMX-3/NOPB have any integrated filters for noise reduction?
Yes, it has integrated low-pass filters on both the SDA and SCL lines to improve communication reliability in noisy environments.
