{"id":5620,"date":"2026-06-11T02:54:05","date_gmt":"2026-06-11T02:54:05","guid":{"rendered":"https:\/\/materialparts.com\/tmp112aidrlr\/"},"modified":"2026-06-12T09:12:12","modified_gmt":"2026-06-12T09:12:12","slug":"tmp112aidrlr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tmp112aidrlr\/","title":{"rendered":"TMP112AIDRLR"},"content":{"rendered":"

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The TMP112AIDRLR from TI is a high-accuracy digital temperature sensor with 12-bit resolution, I2C interface, and 0.5C accuracy in a tiny SOT-5-3 package for thermal management.<\/p>\n

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\u5305\u88c5<\/td>\nSOT-5-3 (2.0×1.25mm)<\/td>\n<\/tr>\n<\/table>\n

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  • See datasheet for complete specifications<\/li>\n
  • Industry-standard package<\/li>\n<\/ul>\n

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      \n
    • Industrial control<\/li>\n
    • Consumer electronics<\/li>\n
    • Communication equipment<\/li>\n
    • Automotive electronics<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TMP112AIDRLR from TI is a high-accuracy digital temperature sensor with 12-bit resolution, I2C interface, and 0.5C accuracy in a tiny SOT-5-3 package for thermal management. Key Specifications Package SOT-5-3 (2.0×1.25mm) Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Automotive electronics<\/p>","protected":false},"author":2,"featured_media":0,"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-5620","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-sensors","chip_brand-ti"],"acf":{"brief_explanation":"Digital temperature sensor, 12-bit, I2C, SOT-5-3","date_code":"","package_case":"SOT-5-3 (2.0x1.25mm)","in_stock":8065,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tmp112.pdf","price":"$0.65 @ 1ku","product_introduction":"The TMP112AIDRLR from TI is a high-accuracy digital temperature sensor with 12-bit resolution, I2C interface, and 0.5C accuracy in a tiny SOT-5-3 package for thermal management.","working_principle":"The TMP112AIDRLR is a digital temperature sensor from Texas Instruments in SOT-5-3 (2.0x1.25mm), providing 12-bit (0.0625C) resolution over I2C with +\/-0.5C accuracy from -20C to +85C (A-grade). The device uses a bandgap temperature sensor whose output is digitized by a delta-sigma ADC. The conversion time is 29ms per reading in normal mode, or 26us in continuous mode at 8 samples\/second. The I2C interface supports 400kHz Fast-mode with two address pins (allowing 4 devices on the same bus). The ALERT pin provides programmable over\/under-temperature detection: the user sets T_HIGH and T_LOW thresholds via I2C registers, and the ALERT pin asserts when the temperature exceeds T_HIGH or drops below T_LOW. The alert mode can be configured as comparator (real-time) or interrupt (latched until read). The extended mode provides 13-bit resolution (0.03125C) over -55C to +150C range. The shutdown mode reduces current to 1uA while preserving register settings. The one-shot mode performs a single conversion and returns to shutdown, ideal for battery-powered applications. The -AIDRLR suffix specifies A-grade, SOT-5-3, tape-and-reel. The tiny SOT-5-3 package (2.0x1.25mm) is 60% smaller than SOT-23-5, making it ideal for space-constrained designs. Applications include: battery temperature monitoring, ambient temperature sensing, and thermal protection in portable devices.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>SCL<\/td>Input<\/td>I2C serial clock (open-drain, requires external pull-up resistor)<\/td><\/tr>
      2<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      3<\/td>ALERT<\/td>Output<\/td>Alert\/interrupt output (open-drain, active when temp exceeds threshold)<\/td><\/tr>
      4<\/td>SDA<\/td>I\/O<\/td>I2C serial data (bidirectional, open-drain, requires external pull-up)<\/td><\/tr>
      5<\/td>V+<\/td>Power<\/td>Supply (1.4-3.6V, typical 3.3V, 10uA active, 1uA shutdown)<\/td><\/tr><\/table>","application_scenarios":"
    • Industrial control<\/li>
    • Consumer electronics<\/li>
    • Communication equipment<\/li>
    • Automotive electronics<\/li>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
      Texas Instruments<\/td>TMP112AIDRLR<\/td>SOT-5-3<\/td>Same device, TI brand<\/td><\/tr>
      Texas Instruments<\/td>TMP112BIDRLR<\/td>SOT-5-3<\/td>B-grade, +\/-0.5C accuracy (better than A)<\/td><\/tr>
      Analog Devices<\/td>ADT7420IRTZ-RL7<\/td>LFCSP-16<\/td>16-bit, +\/-0.25C, ADI brand<\/td><\/tr>
      Maxim<\/td>MAX31875MRN0+<\/td>SOT-23-5<\/td>1-wire\/SMBus, 16-bit, Maxim brand<\/td><\/tr>
      Microchip<\/td>MCP9808T-E\/MS<\/td>MSOP-8<\/td>I2C, +\/-0.25C, Microchip brand<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5620","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=5620"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5620\/revisions"}],"predecessor-version":[{"id":6203,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5620\/revisions\/6203"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5620"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5620"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5620"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5620"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}