Accurate temperature sensor MICROCHIP EMC1843T-1E/RW with rate of change measurement and preemptive alert capabilities
Product Overview
The EMC1822/23/24/25/43 are high-accuracy, two-wire (I2C) temperature sensors with resistor-programmable system shutdown. These devices monitor up to five temperature channels, offering advanced features like Resistance Error Correction (REC), Beta Compensation, and rate of temperature change measurement for robust environmental monitoring. The Rate of Change (ROC) measurement with associated alerts provides preemptive system alerts for managing variable system temperatures. REC automatically corrects errors caused by series resistance, and Beta compensation addresses temperature errors from low, variable beta transistors in processors. The automatic beta detection simplifies sensor configuration. With 1C measurement accuracy for both external and internal diode temperatures, these sensors provide a low-cost, highly flexible, and accurate solution for critical temperature monitoring applications.
Product Attributes
- Brand: Microchip Technology Inc.
- Origin: Datasheet DS20006048B
Technical Specifications
| Feature | Details |
| Temperature Rate of Change Calculation | With Preemptive Alert(s) Limits |
| External Temperature Monitors | Up to Four |
| Accuracy (External, 8-Lead) | 1C (-20C to +105C TA, -40C to +125C TD); 1.5C (-40C to +125C TA, -40C to +125C TD) |
| Accuracy (External, 10-Lead) | 1C (-20C to +125C TA, -40C to +125C TD); 1.5C (-40C to +125C TA, -40C to +125C TD) |
| Accuracy (Internal) | 1C (-40C to +125C) |
| Temperature Sensor Resolution | 0.125C (Internal/External) |
| System Shutdown Temperature | Resistor Programmable |
| Alert Pins | Configurable |
| Operating Voltage | 1.62V to 3.6V |
| Temperature Range | -40C to +125C |
| Other Features | Auto-Beta Compensation, Configurable Ideality Factor, Hottest Diode Compare, Resistance Error Correction |
| Package Types | 8-Lead 2x2 mm WDFN, 10-Lead 2.5x2.0 mm VDFN, 10-Lead MSOP |
| Typical Applications | Temperature Sensitive Storage, Industrial, IoT for Low System Voltage, Portable Electronics, Handheld Gaming, Computing, Food Storage |
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