{"id":3229,"date":"2026-06-01T00:06:56","date_gmt":"2026-06-01T00:06:56","guid":{"rendered":"https:\/\/materialparts.com\/lm75bd118\/"},"modified":"2026-06-01T00:12:42","modified_gmt":"2026-06-01T00:12:42","slug":"lm75bd118","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/lm75bd118\/","title":{"rendered":"LM75BD118"},"content":{"rendered":"

Productos<\/h2>\n

The LM75BD,118 from NXP Semiconductors is a digital temperature sensor with I2C interface in an SOIC-8 package. It provides 11-bit temperature resolution (0.125\u00b0C) with an open-drain overtemperature shutdown output (OS), operating from 2.8 V to 5.5 V over a -55\u00b0C to +125\u00b0C range.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Temperature Resolution<\/td>\n11-bit (0.125\u00b0C)<\/td>\n<\/tr>\n
Temperature Accuracy<\/td>\n+\/-2\u00b0C (-25\u00b0C to +100\u00b0C), +\/-3\u00b0C (-55\u00b0C to +125\u00b0C)<\/td>\n<\/tr>\n
Interface<\/td>\nI2C (up to 400 kHz, 8 devices on bus)<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n2.8 V to 5.5 V<\/td>\n<\/tr>\n
Shutdown Current<\/td>\n1.0 uA typical<\/td>\n<\/tr>\n
OS Output<\/td>\nOpen-drain, programmable threshold<\/td>\n<\/tr>\n
Temperature Range<\/td>\n-55\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
Default T_OS<\/td>\n80\u00b0C<\/td>\n<\/tr>\n
Default T_HYST<\/td>\n75\u00b0C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Pin-to-pin replacement for industry-standard LM75\/LM75A with improved 0.125\u00b0C resolution<\/li>\n
  • Three address pins allow up to 8 devices on one I2C bus<\/li>\n
  • Programmable overtemperature shutdown and hysteresis setpoints<\/li>\n
  • OS output configurable as comparator or interrupt mode<\/li>\n
  • Power-up defaults enable standalone thermostat operation<\/li>\n
  • I2C bus timeout prevents bus hang-up<\/li>\n
  • Shutdown mode reduces supply current to 1.0 uA<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • System thermal management in PCs and servers<\/li>\n
    • Industrial controllers and electronic equipment<\/li>\n
    • Battery-powered temperature monitoring<\/li>\n
    • Hard disk drive temperature protection<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM75BD,118 from NXP Semiconductors is a digital temperature sensor with I2C interface in an SOIC-8 package. It provides 11-bit temperature resolution (0.125\u00b0C) with an open-drain overtemperature shutdown output (OS), operating from 2.8 V to 5.5 V over a -55\u00b0C to +125\u00b0C range. Key Specifications Temperature Resolution 11-bit (0.125\u00b0C) Temperature Accuracy +\/-2\u00b0C (-25\u00b0C […]<\/p>\n","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":[168],"class_list":["post-3229","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-sensors","chip_brand-nxp"],"acf":{"brief_explanation":"I2C temp sensor, 11-bit 0.125C, OS output, 2.8-5.5V, SOIC-8, pin-compatible LM75","date_code":"","package_case":"SOIC-8 (3.90 x 4.90 x 1.35 mm)","in_stock":13200,"datasheet":"https:\/\/www.nxp.com\/docs\/en\/data-sheet\/LM75B.pdf","price":"$0.62 @ 1ku","product_introduction":"The LM75BD,118 from NXP Semiconductors is a temperature-to-digital converter that uses an on-chip bandgap temperature sensor and Sigma-Delta A\/D conversion technique with an overtemperature detection output. It is a pin-to-pin replacement for the industry-standard LM75 and LM75A, offering improved temperature resolution of 0.125\u00b0C through an 11-bit ADC compared to the 9-bit resolution of the original LM75. The device communicates via a 2-wire I2C bus interface supporting up to 400 kHz clock frequency, with three address pins allowing up to eight devices on the same bus without address conflicts. The open-drain OS output can be configured in comparator or interrupt mode with programmable active state, and a programmable fault queue prevents false triggering. Upon power-up, the device defaults to comparator mode with an overtemperature threshold of 80\u00b0C and hysteresis of 75\u00b0C, enabling standalone thermostat operation without any I2C communication. The shutdown mode reduces supply current to just 1.0 uA for battery-powered applications.","working_principle":"The LM75BD,118 operates through three functional blocks: (1) The temperature sensor uses a bandgap circuit whose output voltage varies proportionally with temperature. This voltage is digitized by a Sigma-Delta ADC that produces an 11-bit two's complement result with 0.125\u00b0C resolution. The conversion is performed continuously at approximately 10 samples per second in normal mode, and the result is always available in the temperature register. (2) The I2C interface allows a host controller to read the temperature register and configure the device through a set of registers: Configuration register for mode and OS settings, T_OS register for the overtemperature shutdown threshold, and T_HYST register for the hysteresis value. The I2C section operates independently from the ADC, allowing reads without interrupting conversions. A bus timeout feature resets the interface if SCL is held low for more than 30 ms, preventing bus lockup. (3) The OS output is an open-drain comparator that activates when the temperature exceeds T_OS and deactivates when it falls below T_HYST. In comparator mode, OS follows the temperature directly; in interrupt mode, OS latches active until cleared by reading the temperature register.","pin_description":"
      Pin No.<\/td>Pin Name<\/td>Function<\/td><\/tr>
      1<\/td>SDA<\/td>I2C serial data (bidirectional)<\/td><\/tr>
      2<\/td>SCL<\/td>I2C serial clock (input)<\/td><\/tr>
      3<\/td>OS<\/td>Overtemperature shutdown output (open-drain)<\/td><\/tr>
      4<\/td>GND<\/td>Ground<\/td><\/tr>
      5<\/td>A2<\/td>I2C address bit 2 (input)<\/td><\/tr>
      6<\/td>A1<\/td>I2C address bit 1 (input)<\/td><\/tr>
      7<\/td>A0<\/td>I2C address bit 0 (input)<\/td><\/tr>
      8<\/td>V+<\/td>Supply voltage (2.8-5.5 V)<\/td><\/tr><\/table>","application_scenarios":"
      • PC and server thermal management where multiple LM75BD devices on a single I2C bus monitor temperatures at different board locations with the OS output triggering fan speed control or thermal shutdown<\/li>
      • Industrial controllers using the power-up default thermostat mode (80\u00b0C\/75\u00b0C) for standalone overtemperature protection without requiring I2C communication<\/li>
      • Battery-powered environmental monitoring where the 1 uA shutdown current preserves battery life and 0.125\u00b0C resolution enables precise thermal drift tracking<\/li>
      • Hard disk drive temperature protection leveraging the fault queue to prevent false OS triggers from transient thermal events<\/li><\/ul>","alternative_models":"
        Model<\/td>Brand<\/td>Resolution<\/td>Interface<\/td>Package<\/td><\/tr>
        LM75BDP<\/td>NXP<\/td>11-bit<\/td>I2C<\/td>TSSOP-8<\/td><\/tr>
        LM75CIM-5<\/td>TI<\/td>9-bit<\/td>I2C<\/td>SOIC-8<\/td><\/tr>
        DS75S+<\/td>Maxim<\/td>12-bit<\/td>I2C<\/td>SOIC-8<\/td><\/tr>
        ADT75BRZ<\/td>ADI<\/td>12-bit<\/td>I2C<\/td>MSOP-8<\/td><\/tr>
        MCP9808T-E\/MS<\/td>Microchip<\/td>13-bit<\/td>I2C<\/td>MSOP-8<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3229","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=3229"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3229\/revisions"}],"predecessor-version":[{"id":3245,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3229\/revisions\/3245"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=3229"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=3229"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=3229"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=3229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}