{"id":9159,"date":"2026-07-02T11:54:57","date_gmt":"2026-07-02T11:54:57","guid":{"rendered":"https:\/\/ic-vendor.com\/al5812q\/"},"modified":"2026-07-03T08:04:34","modified_gmt":"2026-07-03T08:04:34","slug":"al5812q","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/al5812q\/","title":{"rendered":"AL5812Q"},"content":{"rendered":"

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

The AL5812Q is a Diodes Incorporated automotive-qualified linear LED driver supporting 4.5V to 60V input voltage with adjustable output current up to 100mA. It provides a simple two-terminal constant current source for automotive LED indicator, tail light, and interior lighting applications, requiring only one external resistor to set the LED current.<\/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
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n4.5V to 60V<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\nUp to 100mA (adjustable)<\/td>\n<\/tr>\n
Current Accuracy<\/td>\n\u00b15%<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u062a\u0633\u0631\u0628<\/td>\n1.2V typical<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +125 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n
\u0627\u0644\u0645\u0624\u0647\u0644\u0627\u062a<\/td>\nAEC-Q100<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • \u0645\u0624\u0647\u0644 AEC-Q100 \u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0633\u064a\u0627\u0631\u0627\u062a<\/li>\n
  • Wide 4.5V to 60V operating voltage range<\/li>\n
  • Adjustable constant current with one external resistor<\/li>\n
  • Low dropout voltage: 1.2V typical<\/li>\n
  • Thermal shutdown protection<\/li>\n
  • Open LED detection<\/li>\n
  • PWM dimming capable via bias pin<\/li>\n
  • Two-terminal (DIODE) package option<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Automotive tail and stop lights<\/li>\n
    • Automotive interior dome and map lights<\/li>\n
    • Dashboard indicator LEDs<\/li>\n
    • Automotive daytime running lights<\/li>\n
    • Industrial LED indicators<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AL5812Q is a Diodes Incorporated automotive-qualified linear LED driver supporting 4.5V to 60V input voltage with adjustable output current up to 100mA. It provides a simple two-terminal constant current source for automotive LED indicator, tail light, and interior lighting applications, requiring only one external resistor to set the LED current. Key Specifications […]<\/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":[13,33],"tags":[704],"chip_brand":[193],"class_list":["post-9159","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-led-driver-ics","tag-al5812q","chip_brand-diodes-inc"],"acf":{"brief_explanation":"AEC-Q100 linear LED driver, 4.5-60V, 100mA, adjustable current, 2-terminal, SOT-89","date_code":"","package_case":"SOT-89 (4.5 x 2.5 x 1.5 mm)","in_stock":7650,"datasheet":"https:\/\/www.diodes.com\/assets\/Datasheets\/AL5812Q.pdf","price":"$0.32 @ 1ku","product_introduction":"The AL5812Q is a Diodes Incorporated AEC-Q100 qualified linear LED driver supporting 4.5V to 60V input with adjustable output current up to 100mA. It functions as a simple two-terminal constant current source, requiring only one external resistor to set the LED current. With 1.2V typical dropout voltage, \u00b15% current accuracy, and thermal shutdown protection, it is designed for automotive LED indicator, tail light, and interior lighting. The bias pin supports PWM dimming for brightness control.","working_principle":"The AL5812Q operates as a series-pass linear constant current regulator. The internal reference voltage and external current-set resistor (connected from the ADJ pin to GND) determine the LED current. The pass element maintains the programmed current through the LED string regardless of input voltage variations (within the operating range). The dropout voltage of 1.2V represents the minimum headroom needed between the input supply and the total LED string forward voltage. PWM dimming is achieved by modulating the bias pin voltage, which enables and disables the output current. Thermal shutdown activates at approximately 155\u00b0C junction temperature to protect the device.","pin_description":"
      Pin<\/th>Mnemonic<\/th>Description<\/th><\/tr>
      1<\/td>VIN<\/td>Input supply (4.5-60V), connected to LED cathode<\/td><\/tr>
      2<\/td>GND<\/td>Ground<\/td><\/tr>
      3<\/td>ADJ\/BIAS<\/td>Current set resistor \/ PWM dimming input<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive tail light and stop lamp LED constant current drive<\/li>\n
      • Interior dome and map light LED strings with PWM dimming<\/li>\n
      • Dashboard indicator LED driver with thermal protection<\/li>\n
      • Automotive DRL supplementary LED drive with 60V input tolerance<\/li>\n
      • Industrial 24V\/48V LED indicator with single-resistor current setting<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        AL5812<\/td>Diodes Inc<\/td>Non-automotive version<\/td><\/tr>
        NCR402Z<\/td>onsemi<\/td>40V, 50mA linear LED driver<\/td><\/tr>
        BCR402W<\/td>Infineon<\/td>18V, 50mA linear LED driver<\/td><\/tr>
        TL4242<\/td>TI<\/td>40V, 150mA automotive LED driver<\/td><\/tr>
        AL5809<\/td>Diodes Inc<\/td>60V, 120mA linear LED driver<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/9159","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/comments?post=9159"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/9159\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=9159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=9159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=9159"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=9159"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}