{"id":9109,"date":"2026-07-02T11:35:22","date_gmt":"2026-07-02T11:35:22","guid":{"rendered":"https:\/\/materialparts.com\/tl331bqdbvrq1\/"},"modified":"2026-07-03T08:03:49","modified_gmt":"2026-07-03T08:03:49","slug":"tl331bqdbvrq1","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/tl331bqdbvrq1\/","title":{"rendered":"TL331BQDBVRQ1"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The Texas Instruments TL331BQDBVRQ1 is an automotive-qualified single differential comparator featuring an open-collector\/open-drain output, wide supply voltage range of 2 V to 36 V, and ultra-low supply current of 0.43 mA. As an improved next-generation version of the industry-standard TL331, it offers lower offset voltage, lower bias current, and faster response time. Housed in a 5-pin SOT-23 package, it is AEC-Q100 Grade 1 qualified.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u0639\u062f\u062f \u0627\u0644\u0642\u0646\u0648\u0627\u062a<\/td>\n1<\/td>\n<\/tr>\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n2 V to 36 V<\/td>\n<\/tr>\n
Supply Current (typ)<\/td>\n0.43 mA<\/td>\n<\/tr>\n
Input Offset Voltage (max)<\/td>\n2.5 mV at 25 \u00b0C<\/td>\n<\/tr>\n
Input Bias Current (typ)<\/td>\n3.5 nA<\/td>\n<\/tr>\n
Propagation Delay (typ)<\/td>\n1 \u00b5s<\/td>\n<\/tr>\n
\u0646\u0648\u0639 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\nOpen-collector \/ Open-drain<\/td>\n<\/tr>\n
Common-Mode Input Range<\/td>\n0 V to 34.5 V (includes ground)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u00b0C to +125 \u00b0C<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOT-23-5 (DBV)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • AEC-Q100 Grade 1 qualified (-40 \u00b0C to +125 \u00b0C)<\/li>\n
  • Improved specifications over legacy TL331-Q1<\/li>\n
  • Low input offset voltage: 0.37 mV typical<\/li>\n
  • Ultra-low input bias current: 3.5 nA typical<\/li>\n
  • Wide supply range: 2 V to 36 V, independent of voltage<\/li>\n
  • Input common-mode range includes ground<\/li>\n
  • 2 kV HBM ESD rating<\/li>\n
  • Open-collector output supports wired-AND configurations<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Automotive battery monitoring and undervoltage detection<\/li>\n
    • Window comparator circuits in power management<\/li>\n
    • eCall backup battery voltage supervision<\/li>\n
    • Motor drive overcurrent protection<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Texas Instruments TL331BQDBVRQ1 is an automotive-qualified single differential comparator featuring an open-collector\/open-drain output, wide supply voltage range of 2 V to 36 V, and ultra-low supply current of 0.43 mA. As an improved next-generation version of the industry-standard TL331, it offers lower offset voltage, lower bias current, and faster response time. Housed […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,13],"tags":[675],"chip_brand":[138],"class_list":["post-9109","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","tag-tl331bqdbvrq1","chip_brand-ti"],"acf":{"brief_explanation":"Automotive single comparator, 2-36V, 0.43mA Iq, 2.5mV Vos, 1\u00b5s, SOT-23-5, AEC-Q101","date_code":"","package_case":"SOT-23-5 (DBV) (2.9 x 2.8 x 1.0 mm)","in_stock":9834,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tl331b-q1.pdf","price":"$0.28 @ 1ku","product_introduction":"The Texas Instruments TL331BQDBVRQ1 is an automotive-qualified single voltage comparator and the next-generation improvement of the industry-standard TL331-Q1. It features significantly lower input offset voltage (0.37 mV typical vs. 1.4 mV in legacy versions), lower input bias current (3.5 nA vs. 25 nA), lower supply current (0.43 mA vs. 0.7 mA), and faster propagation delay (1 \u00b5s vs. 1.3 \u00b5s). The device operates from a wide 2 V to 36 V single supply, with input common-mode range that includes ground, making it ideal for low-side current sensing and ground-referenced voltage monitoring. The open-collector output can be connected to other open-collector outputs for wired-AND logic functions. AEC-Q100 Grade 1 qualification ensures reliable operation in automotive environments from -40 \u00b0C to +125 \u00b0C. The device is a drop-in replacement for the TL331-Q1, enabling easy upgrades in existing designs.","working_principle":"The TL331BQDBVRQ1 is a single differential voltage comparator that outputs a logic low when the voltage at the inverting input (-) exceeds the voltage at the non-inverting input (+), and releases (high-impedance) when the non-inverting input is higher. The open-collector output requires an external pull-up resistor to establish the logic high level, and can be connected to other open-collector outputs for wired-AND configurations. The input stage uses a differential pair with PNP input transistors, allowing the common-mode input range to extend down to ground (0 V), which is critical for low-side current sensing applications. The 3.5 nA typical input bias current minimizes error in high-impedance sensing circuits. The 0.37 mV typical offset voltage ensures accurate threshold detection. The device operates from a single supply as low as 2 V, with supply current essentially independent of supply voltage (0.43 mA typical from 5 V to 36 V), making it suitable for battery-powered systems.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>IN+<\/td>Input<\/td>Non-inverting comparator input<\/td><\/tr>
      2<\/td>IN-<\/td>Input<\/td>Inverting comparator input<\/td><\/tr>
      3<\/td>V-<\/td>Power<\/td>Negative supply \/ Ground<\/td><\/tr>
      4<\/td>OUT<\/td>Output<\/td>Open-collector output<\/td><\/tr>
      5<\/td>V+<\/td>Power<\/td>Positive supply (2-36V)<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive battery undervoltage and overvoltage detection<\/li>
      • eCall backup battery voltage supervision<\/li>
      • Window comparator for temperature or voltage monitoring<\/li>
      • Motor driver overcurrent and short-circuit protection<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TL331QDBVRQ1<\/td>SOT-23-5<\/td>Legacy version, higher offset\/bias<\/td><\/tr>
        TI<\/td>TL331E-Q1<\/td>SOT-23-5<\/td>Grade 0, -40 to 150\u00b0C<\/td><\/tr>
        TI<\/td>LM393LV-Q1<\/td>SOT-23-8<\/td>Dual automotive comparator<\/td><\/tr>
        Microchip<\/td>MCP6541T-IOT<\/td>SOT-23-5<\/td>Push-pull output alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9109","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=9109"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9109\/revisions"}],"predecessor-version":[{"id":9130,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9109\/revisions\/9130"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=9109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=9109"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=9109"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=9109"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}