{"id":2737,"date":"2026-05-25T02:05:57","date_gmt":"2026-05-25T02:05:57","guid":{"rendered":"https:\/\/materialparts.com\/tmp275aidr\/"},"modified":"2026-05-25T02:05:57","modified_gmt":"2026-05-25T02:05:57","slug":"tmp275aidr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tmp275aidr\/","title":{"rendered":"TMP275AIDR"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The TMP275AIDR from Texas Instruments is a 0.5C accuracy digital temperature sensor with I2C interface in an 8-SOIC package. Identical function to the TMP275AIDGKR but in a wider SOIC-8 package, it provides 12-bit temperature resolution for board-level thermal monitoring.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
Accuracy<\/td>\n+\/-0.5C (typ) @ 0C~60C<\/td>\n<\/tr>\n
Resolution<\/td>\n12-bit (0.0625C)<\/td>\n<\/tr>\n
Interface<\/td>\nI2C \/ SMBus<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n2.7V ~ 5.5V<\/td>\n<\/tr>\n
Supply Current<\/td>\n45uA active, 0.1uA shutdown<\/td>\n<\/tr>\n
Address Pins<\/td>\n3 (up to 8 devices on bus)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n8-SOIC<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • +\/-0.5C accuracy from 0C to 60C<\/li>\n
  • 12-bit (0.0625C) temperature resolution<\/li>\n
  • I2C\/SMBus compatible interface<\/li>\n
  • Programmable over-temperature alert output<\/li>\n
  • 3 address pins for up to 8 devices on one bus<\/li>\n
  • Low 45uA active supply current<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Board-level temperature monitoring<\/li>\n
    • Industrial process control<\/li>\n
    • Server thermal management<\/li>\n
    • Medical equipment thermal protection<\/li>\n
    • Environmental monitoring<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TMP275AIDR from Texas Instruments is a 0.5C accuracy digital temperature sensor with I2C interface in an 8-SOIC package. Identical function to the TMP275AIDGKR but in a wider SOIC-8 package, it provides 12-bit temperature resolution for board-level thermal monitoring. Key Specifications Accuracy +\/-0.5C (typ) @ 0C~60C Resolution 12-bit (0.0625C) Interface I2C \/ SMBus […]<\/p>\n","protected":false},"author":2,"featured_media":2761,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,42],"tags":[],"chip_brand":[138],"class_list":["post-2737","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-integrated-circuits-ics","category-sensors","chip_brand-ti"],"acf":{"brief_explanation":"0.5C I2C temp sensor, 12-bit, 2.7-5.5V, alert output, 8-SOIC","date_code":"","package_case":"8-SOIC (4.90 x 3.91 x 1.50 mm)","in_stock":3681,"datasheet":"https:\/\/www.ti.com\/product\/TMP275","price":"$0.60 @ 1ku","product_introduction":"The TMP275AIDR from Texas Instruments is a high-accuracy digital temperature sensor with I2C\/SMBus interface in an 8-SOIC package. It offers +\/-0.5C accuracy from 0C to 60C with 12-bit (0.0625C) temperature resolution. This is the SOIC-8 package variant of the TMP275 family, functionally identical to the VSSOP-8 version (TMP275AIDGKR). Operating from 2.7V to 5.5V with only 45uA active current, it supports up to 8 devices on a single I2C bus via three address pins. The programmable alert output enables interrupt-driven thermal monitoring.","working_principle":"The TMP275AIDR uses a bandgap temperature-sensing element generating a PTAT voltage, digitized by a delta-sigma ADC with 12-bit resolution. Temperature data is accessed via I2C read operations. The ALERT comparator monitors temperature against programmable T_high and T_low thresholds. When temperature exceeds T_high or drops below T_low, the open-drain ALERT pin asserts. The fault queue (1\/2\/4\/6 consecutive faults) provides noise immunity. Configuration registers control resolution (9-12 bit), alert polarity, and fault queue depth.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>SDA<\/td>I\/O<\/td>I2C serial data<\/td><\/tr>
      2<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      3<\/td>ALERT<\/td>Output<\/td>Over-temperature alert (open-drain)<\/td><\/tr>
      4<\/td>A0<\/td>Input<\/td>I2C address bit 0<\/td><\/tr>
      5<\/td>A1<\/td>Input<\/td>I2C address bit 1<\/td><\/tr>
      6<\/td>A2<\/td>Input<\/td>I2C address bit 2<\/td><\/tr>
      7<\/td>V+<\/td>Power<\/td>Supply voltage (2.7-5.5V)<\/td><\/tr>
      8<\/td>SCL<\/td>Input<\/td>I2C serial clock<\/td><\/tr><\/table>","application_scenarios":"
      • Server and storage system board thermal monitoring<\/li>
      • Industrial process control temperature measurement<\/li>
      • HVAC zone and room temperature sensing<\/li>
      • Medical equipment thermal safety protection<\/li>
      • Consumer electronics battery temperature sensing<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TMP275AIDGKR<\/td>8-VSSOP<\/td>Same function, smaller package<\/td><\/tr>
        TI<\/td>TMP112AIDRLR<\/td>SOT-6<\/td>0.5C, I2C, much smaller<\/td><\/tr>
        NXP<\/td>LM75BDP<\/td>8-TSSOP<\/td>2C accuracy, I2C compatible<\/td><\/tr>
        Microchip<\/td>MCP9808T-E\/MC<\/td>8-DFN<\/td>0.25C accuracy upgrade<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2737","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=2737"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2737\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media\/2761"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2737"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2737"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}