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TCN75AVOA Datasheet(PDF) 1 Page - Microchip Technology |
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TCN75AVOA Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 32 page  © 2006 Microchip Technology Inc. DS21935C-page 1 TCN75A Features: • Temperature-to-Digital Converter • Accuracy: - ±1 (typ.) from -40°C to +125°C - ±2°C (max.) from +40°C to +125°C • User-selectable Resolution: 0.5°C to 0.0625°C • Operating Voltage Range: 2.7V to 5.5V • 2-wire Interface: I2C™ Compatible • Operating Current: 200 μA (typ.) • Shutdown Current: 2 μA (max.) • Power-saving One-shot Temperature Measurement • Available Packages: MSOP-8, SOIC-8 Typical Applications: • Personal Computers and Servers • Hard Disk Drives and Other PC Peripherals • Entertainment Systems • Office Equipment • Data Communication Equipment • General Purpose Temperature Monitoring Typical Application Description: Microchip Technology Inc.’s TCN75A digital tempera- ture sensor converts temperatures between -40°C and +125°C to a digital word, with ±1°C (typ.) accuracy. The TCN75A product comes with user-programmable registers that provide flexibility for temperature-sensing applications. The register settings allow user-select- able, 0.5°C to 0.0625°C temperature measurement resolution, configuration of the power-saving Shutdown and One-shot (single conversion on command while in Shutdown) modes and the specification of both temperature alert output and hysteresis limits. When the temperature changes beyond the specified limits, the TCN75A outputs an alert signal. The user has the option of setting the alert output signal polarity as an active-low or active-high comparator output for thermo- stat operation, or as temperature event interrupt output for microprocessor-based systems. This sensor has an industry standard 2-wire, I2C™ compatible serial interface, allowing up to eight devices to be controlled in a single serial bus. These features make the TCN75A ideal for low-cost, sophisticated multi-zone temperature-monitoring applications. Package Types VDD R TCN75A SDA SCL I/O Ports RPULL-UP PIC® 1 2 3 4 8 7 6 5 A0 VDD A1 A2 SDA GND ALERT SCL Microcontroller ALERT VDD SDA GND ALERT SCL 1 2 3 4 8 7 6 5 8-Pin SOIC, MSOP A0 VDD A1 A2 2-Wire Serial Temperature Sensor |
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