LM75A/B/C Digital Temperature Sensor and Thermal Monitor
Product Overview
The LM75A/B/C is an industrial-standard digital temperature sensor designed for system thermal management. It offers accurate temperature monitoring with a measurement error of less than 1 across a wide operating range of -40C to +125C. The sensor supports IC communication, allowing up to eight LM75A/B/C devices to be connected on a single bus. With its programmable temperature limits and ALERT pin, it can function as a thermostat or over-temperature alarm. Factory calibrated, the LM75A/B/C eliminates the need for additional temperature output processing, making it ideal for applications such as base stations, electronic test equipment, office electronics, and personal computers where thermal management is critical.
Product Attributes
- Brand: LM75A/B/C
- Interface: Two-wire interface (IC compatible)
- Package Options: SOIC-8, MSOP-8
Technical Specifications
| Specification | Value | Unit |
|---|---|---|
| Supply Voltage (LM75) | 2.7 to 5.5 | V |
| Supply Voltage (V+) | 1.4 to 5.5 | V |
| Operating Temperature Range | -40 to 125 | C |
| Temperature Accuracy (Typical @ +25C) | 0.5 | C |
| Temperature Accuracy (0.5C @ 0C to +70C) | 0.5 | C |
| Temperature Accuracy (1C @ -40C to +125C) | 1 | C |
| Temperature Resolution | 0.0625 | C |
| ADC Resolution | 12 | Bits |
| One-Shot Conversion Time (Typical) | 26 | ms |
| Continuous Conversion Rate | 12 | Conv/s |
| Bus Timeout (Typical) | 22 | ms |
| Bus Communication Frequency (Fast Mode) | 0.4 | MHz |
| Bus Communication Frequency (High-Speed Mode) | 2.75 | MHz |
| Average Quiescent Current (Bus Idle) | 15 to 37 | A |
| Shutdown Current (Bus Idle) | 0.5 | A |
| ESD Voltage (HBM) | 5000 | V |
| ESD Voltage (MM) | 300 | V |
Application Scenarios
- General System Thermal Management
- Communication Infrastructure
- Electronic Test Equipment
- Environmental Monitoring
2411111138_Tudi-LM75AIMMX-TUDI_C41417241.pdf
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