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TMP112AIDRLR Datasheet(PDF) 6 Page - Texas Instruments |
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TMP112AIDRLR Datasheet(HTML) 6 Page - Texas Instruments |
6 / 25 page APPLICATION INFORMATION TMP112 0.01mF V+ GND 2 5 3 ALERT (Output) 4 ADD0 1 SCL 6 SDA To Two-Wire Controller NOTE:SCL,SDA,andALERT pinsrequirepull-upresistors. Diode Temp. Sensor DS A/D Converter OSC Control Logic Serial Interface Config. andTemp. Register TMP112 Temperature SCL 1 3 6 4 ALERT SDA GND 2 5 V+ ADD0 ALERT Core SCL GND V+ A0 V+ SDA TMP112 TMP112 SBOS473B – MARCH 2009 – REVISED JUNE 2009 ......................................................................................................................................................... www.ti.com The TMP112 is a digital temperature sensor that is Pull-up resistors are required on SCL, SDA, and optimal for thermal-management and ALERT. A 0.01 µF bypass capacitor is recommended, thermal-protection applications. A block diagram of as shown in Figure 10. the TMP112 is shown in Figure 8. The TMP112 is two-wire- and SMBus interface-compatible, and is specified over an operating temperature range of –40°C to +125°C. Figure 9 illustrates the ESD protection circuitry contained in the TMP112. Figure 10. Typical Connections The temperature sensor in the TMP112 is the chip itself. Thermal paths run through the package leads as well as the plastic package. The lower thermal resistance of metal causes the leads to provide the primary thermal path. Figure 8. Internal Block Diagram To maintain accuracy in applications that require air or surface temperature measurement, care should be taken to isolate the package and leads from ambient air temperature. A thermally-conductive adhesive is helpful in achieving accurate surface temperature measurement. Figure 9. Equivalent Internal ESD Circuitry 6 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): TMP112 |
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