EMC1843T-1E/RW Microchip

Multi-Channel Low-Voltage Temp Sensors with Shutdown EMC1822/23/24/25/43 Features Measures Temperature Rate of Change Calculation with Preemptive Alert(s) Limits Up to Four External Temperature Monitors: 8-Lead Devices: 1C maximum accuracy (-20C to +105C T , -40C to +125C T ) A D 1.5C maximum accuracy (-40C to +125C T , -40C to +125C T ) A D 10-Lead Devices: 1C maximum accuracy (-20C to +125C T , -40C to +125C T ) A D 1.5C maximum accuracy (-40C to +125C T , -40C to +125C T ) A D Internal Temperature Sensor: 1C maximum accuracy, -40C to +125C Temperature Sensor Resolution (Internal/External): 0.125C Resistor Programmable System Shutdown Temperature Configurable Alert Pins 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 Available in 8-Lead 2x2 mm WDFN, 10-Lead 2.5x2.0 mm VDFN and 10-Lead MSOP Packages Typical Applications Temperature Sensitive Storage Industrial IoT for Low System Voltage Portable Electronics Handheld Gaming Computing Food Storage Datasheet DS20006048B-page 1 2018-2020 Microchip Technology Inc. Multi-Channel Low-Voltage Temp Sens... Description 2 The EMC1822/23/24/25/43 devices are high-accuracy, two-wire (I C) temperature sensors with resistor programmable system shutdown. The devices monitor up to five temperature channels. Advanced features, such as Resistance Error Correction (REC), Beta Compensation (to support CPU diodes requiring the BJT/Transistor model) and rate of temperature change measurement combine to provide a robust solution for complex environmental monitoring applications. This device family introduces Rate of Change (ROC) temperature measurement with associated alerts. This provides a preemptive system alert and another protective measurement layer to catch and manage variable system temperatures. The Resistance Error Correction feature automatically eliminates the temperature error caused by series resistance, allowing for greater flexibility in routing thermal diodes. Beta compensation eliminates temperature errors caused by low, variable beta transistors common in current fine geometry processors. The automatic beta detection feature determines the optimal sensor external diode/transistor settings. This frees up the user from providing unique sensor configurations for each temperature monitoring application. These advanced features plus 1C measurement accuracy for both external and internal diode temperatures provide a low-cost, highly flexible and accurate solution for critical temperature monitoring applications. DS20006048B-page 2 Datasheet 2018-2020 Microchip Technology Inc.