Datenblatt-Suchmaschine für elektronische Bauteile |
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TMP275 Datenblatt(PDF) 8 Page - Texas Instruments |
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TMP275 Datenblatt(HTML) 8 Page - Texas Instruments |
8 / 33 page Diode Temp. Sensor Σ A/D Converter OSC Control Logic Serial Interface Config. and Temp. Register Temperature ALERT SDA 1 3 4 8 6 5 GND V+ A1 SCL 2 7 A0 A2 TMP275 SBOS363E – JUNE 2006 – REVISED NOVEMBER 2015 www.ti.com 7 Detailed Description 7.1 Overview The TMP275 is a digital temperature sensor that is optimal for thermal management and thermal protection applications. The TMP275 is Two-Wire, SMBus, and I2C interface-compatible, and is specified over a temperature range of −40°C to 125°C. The temperature sensor in the TMP275 is the chip itself. Thermal paths run through the package leads as well as the plastic package. The package leads provide the primary thermal path because of the lower thermal resistance of the metal. See Functional Block Diagram for the internal block diagram of TMP275 device. 7.2 Functional Block Diagram 7.3 Feature Description 7.3.1 Digital Temperature Output The temperature register of the TMP275 is a 12-bit, read-only register that stores the output of the most recent conversion. Two bytes must be read to obtain data, and are described in Figure 13 and Figure 14. Note that byte 1 is the most significant byte, followed by byte 2, the least significant byte. The first 12 bits are used to indicate temperature, with all remaining bits equal to zero. The least significant byte does not have to be read if that information is not needed. Data format for temperature is summarized in Table 1. Following power up or reset, the Temperature Register reads 0°C until the first conversion is complete. The user can obtain 9, 10, 11, or 12 bits of resolution by addressing the Configuration Register and setting the resolution bits accordingly. For 9-, 10-, or 11-bit resolution, the most significant bits in the Temperature Register are used with the unused LSBs set to zero Table 1. Temperature Data Format TEMPERATURE DIGITAL OUTPUT HEX (°C) (BINARY) 128 0111 1111 1111 7FF 127.9375 0111 1111 1111 7FF 100 0110 0100 0000 640 80 0101 0000 0000 500 75 0100 1011 0000 4B0 50 0011 0010 0000 320 25 0001 1001 0000 190 0.25 0000 0000 0100 004 0 0000 0000 0000 000 –0.25 1111 1111 1100 FFC –25 1110 0111 0000 E70 –55 1100 1001 0000 C90 8 Submit Documentation Feedback Copyright © 2006–2015, Texas Instruments Incorporated Product Folder Links: TMP275 |
Ähnliche Teilenummer - TMP275_15 |
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Ähnliche Beschreibung - TMP275_15 |
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