TC72-2.8MMFTR Microchip

TC72 TC72 TC72 M Digital Temperature Sensor with SPI Interface Features General Description Temperature-to-Digital Converter The TC72 is a digital temperature sensor capable of reading temperatures from -55C to +125C. This sen- SPI Compatible Interface sor features a serial interface that allows communica- 10-Bit Resolution (0.25C/Bit) tion with a host controller or other peripherals. The 2C (max.) Accuracy from -40C to +85C TC72 interface is compatible with the SPI protocol. The 3C (max.) Accuracy from -55C to +125C TC72 does not require any additional external compo- 2.65V to 5.5V Operating Range nents. However, it is recommended that a decoupling capacitor of 0.01 F to 0.1 F be provided between the Low Power Consumption: V and GND pins. - 250 A (typ.) Continuous Temperature DD Conversion Mode The TC72 can be used either in a Continuous Temper- ature Conversion mode or a One-Shot Conversion - 1 A (max.) Shutdown Mode mode. The Continuous Conversion mode measures Power Saving One-Shot Temperature the temperature approximately every 150ms and Measurement stores the data in the temperature registers. In con- Industry Standard 8-Pin MSOP Package trast, the One-Shot mode performs a single tempera- Space Saving 8-Pin DFN (3x3 mm) Package ture measurement and returns to the power saving shutdown mode. Typical Applications The TC72 features high temperature accuracy, ease- Personal Computers and Servers of-use and is the ideal solution for implementing ther- Hard Disk Drives and Other PC Peripherals mal management in a variety of systems. The device is available in both 8-pin MSOP and 8-pin DFN space- Entertainment Systems saving packages. The TC72 also features a shutdown Office Equipment mode for low power operation. Datacom Equipment Mobile Phones Block Diagram General Purpose Temperature Monitoring V DD Package Types Internal TC72 MSOP Diode NC 1 Temperature 8 V DD Sensor CE 2 7 NC SCK 3 6 SDI GND 4 5 SDO Manufacturer ID Register 10-Bit DFN Sigma Delta A/D Converter NC 1 8 V DD CE Serial SCK SCK 2 7 NC Port SDO CE 3 6 SDO Interface SDI Temperature GND 4 5SDI Register GND Control Register 2002 Microchip Technology Inc. DS21743A-page 1TC72 Typical Application V DD 0.1F V DD PICmicro TC72 MCU CE AN0 SCK SCK SDO SDI SDI SDO GND DS21743A-page 2 2002 Microchip Technology Inc.