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MCP9844 Arkusz danych(PDF) 1 Page - Microchip Technology |
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MCP9844 Arkusz danych(HTML) 1 Page - Microchip Technology |
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1 / 44 page  2013 Microchip Technology Inc. DS20005192A-page 1 MCP9844 Features •1MHz, 2-wire I2C™ Interface • User Selectable Measurement Resolution: - +0.5°C, +0.25°C, +0.125°C, +0.0625°C • User Programmable Temperature Limits: - Temperature Window Limit - Critical Temperature Limit • User Programmable Temperature Alert Output • Specified VDD Range: 1.7V to 3.6V • Operating Current: 100 µA (typical) • Available Package: 8-Pin TDFN Temperature Sensor Features • Temperature-to-Digital Converter (°C) • Sensor Accuracy (Grade B): - ±0.2°C/±1°C (typ./max.) +75°C to +95°C - ±0.5°C/±2°C (typ./max.) +40°C to +125°C - ±1°C/±3°C (typ./max.) -40°C to +125°C Typical Applications • Temperature sensing for Solid State Drive (SSD) • General Purpose Temperature Datalog • General Purpose • Industrial Applications • Industrial Freezers and Refrigerators • Food Processing • Personal Computers and Servers • PC Peripherals • Consumer Electronics • Handheld/Portable Devices Description Microchip Technology Inc.’s MCP9844 digital temperature sensor converts temperature from -40°C to +125°C to a digital word. It provides an accuracy of ±0.2°C/±1°C (typical/maximum) from +75°C to +95°C with an operating voltage of 1.7V to 3.6V. The MCP9844 digital temperature sensor comes with user programmable registers that provide flexibility for temperature sensing applications. The registers allow user selectable settings such as Shutdown or Low- Power modes, and the specification of temperature event boundaries. When the temperature changes beyond the specified event boundary limits, the MCP9844 outputs an Alert signal at the Event pin. The user has the option of setting the temperature event output signal polarity as either an active-low or active- high comparator output for the thermostat operation, or as a temperature event interrupt output for microprocessor-based systems. This sensor has an industry standard I2C Fast Mode Plus compatible 1 MHz serial interface. Package Types -1.0 0.0 1.0 2.0 3.0 V DD = 1.7 V to 3.6 V 16 units Spec. Limits +Std. Dev. Average -3.0 -2.0 -40 -20 0 20 40 60 80 100 120 T A (°C) g -Std. Dev. 8-Pin 2x3 TDFN * * Includes Exposed Thermal Pad (EP); see Table 3-1. SCL Event SDA A1 A2 1 2 3 4 8 7 6 5 GND A0 VDD EP 9 ±1°C Accurate, 1.8V Digital Temperature Sensor |
Podobny numer części - MCP9844 |
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Podobny opis - MCP9844 |
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