Product Overview
The LM75A/B/C is an industrial-standard digital temperature sensor and thermal monitor designed for general system thermal management. It offers precise temperature measurement with an error of less than 1C across its operating range of -40C to +125C, featuring good temperature linearity. The sensor supports IC communication, allowing up to eight LM75A/B/C devices on a single bus, and includes an over-temperature alarm function. Its programmable temperature limits and ALERT pin enable thermostat or over-temperature alarm functionality. The LM75A operates on a single supply voltage from +2.7V to +5.5V and is factory-calibrated, eliminating the need for additional user temperature processing. It is 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: IC
- Package Types: SOIC-8, MSOP-8
Technical Specifications
| Parameter | Conditions | Min | Nom | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | |||||
| V+ | 1.4 | 1.8 | 5.5 | V | |
| Operating Temperature Range | |||||
| TA | -40 | 125 | C | ||
| Electrical Characteristics (Typical at +25C, V+ = 1.8V) | |||||
| Temperature Accuracy (Error) | +25C | 0.1 | 0.5 | C | |
| Temperature Accuracy (Error) | 0C to +70C | 0.25 | 0.5 | C | |
| Temperature Accuracy (Error) | -40C to +125C | 0.5 | 1 | C | |
| Resolution | 0.0625 | C | |||
| A/D Resolution | 12 | Bits | |||
| One-Shot Conversion Time | 26 | 35 | ms | ||
| Continuous Conversion Rate | 12 | Conv/s | |||
| Bus Timeout | 22 | 40 | ms | ||
| Bus Frequency (Fast Mode) | 0.4 | MHz | |||
| Bus Frequency (High-Speed Mode) | 2.75 | MHz | |||
| Average Quiescent Current (Idle) | 15 | 37 | A | ||
| Shutdown Current (Idle) | 0.5 | A | |||
2411111138_Tudi-LM75CIMMX-5-TUDI_C41417247.pdf
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