{"id":5137,"date":"2026-06-09T08:53:17","date_gmt":"2026-06-09T08:53:17","guid":{"rendered":"https:\/\/materialparts.com\/a6217kljtr-t\/"},"modified":"2026-06-09T08:53:17","modified_gmt":"2026-06-09T08:53:17","slug":"a6217kljtr-t","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/a6217kljtr-t\/","title":{"rendered":"A6217KLJTR-T"},"content":{"rendered":"

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

The A6217KLJTR-T from Allegro MicroSystems is an automotive-grade constant-current buck LED driver with PWM dimming, delivering up to 3A output current with AEC-Q100 qualification.<\/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
\u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629<\/td>\nAllegro MicroSystems<\/td>\n<\/tr>\n
\u0627\u0644\u0637\u0648\u0628\u0648\u0644\u0648\u062c\u064a\u0627<\/td>\nBuck (Step-Down)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n6V to 48V<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n3A max<\/td>\n<\/tr>\n
Dimming<\/td>\nPWM (100Hz to 2kHz)<\/td>\n<\/tr>\n
Switching Freq<\/td>\nUp to 2.2 MHz<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0625\u064a\u0642\u0627\u0641 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n1 \u00b5A typical<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOIC-8 with exposed pad<\/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
  • AEC-Q100 qualified<\/li>\n
  • 6V to 48V supply range<\/li>\n
  • 3A true average output current<\/li>\n
  • Integrated high-side DMOS switch<\/li>\n
  • PWM dimming via enable pin<\/li>\n
  • Internal loop compensation<\/li>\n
  • UVLO and thermal shutdown<\/li>\n
  • Cycle-by-cycle current limit<\/li>\n
  • Frequency dithering for EMI reduction<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Automotive daytime running lights<\/li>\n
    • Fog lights (front and rear)<\/li>\n
    • Turn\/stop lights<\/li>\n
    • Dimmable interior lighting<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The A6217KLJTR-T from Allegro MicroSystems is an automotive-grade constant-current buck LED driver with PWM dimming, delivering up to 3A output current with AEC-Q100 qualification. Key Specifications Manufacturer Allegro MicroSystems Topology Buck (Step-Down) Input Voltage 6V to 48V Output Current 3A max Dimming PWM (100Hz to 2kHz) Switching Freq Up to 2.2 MHz Shutdown […]<\/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":[13,33],"tags":[],"chip_brand":[12],"class_list":["post-5137","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-led-driver-ics","chip_brand-renesas"],"acf":{"brief_explanation":"Automotive buck LED driver, 6-48V, 3A, PWM dimming, AEC-Q100, SOIC-8-EP","date_code":"","package_case":"SOIC-8 with Exposed Pad (4.9 x 3.9 x 1.55 mm)","in_stock":2469,"datasheet":"https:\/\/www.allegromicro.com\/en\/products\/regulate\/led-drivers\/led-drivers-for-lighting\/a6217","price":"$0.62 @ 9ku","product_introduction":"The A6217KLJTR-T from Allegro MicroSystems is an automotive-grade constant-current buck LED driver capable of delivering up to 3A output. It integrates a high-side N-channel DMOS switch and uses cycle-by-cycle controlled on-time for true average current regulation. PWM dimming is achieved through the enable pin. Frequency dithering reduces EMI. AEC-Q100 qualified with comprehensive fault protection including UVLO, thermal shutdown, and current limit.","working_principle":"The A6217 uses a controlled on-time buck topology. The integrated DMOS switch is turned on for a period proportional to VOUT\/VIN, then turned off. Output current is sensed through an external resistor and regulated by adjusting on-time. PWM dimming toggles the enable pin to set average LED current. The dithering feature varies switching frequency \u00b15% to spread EMI spectrum.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>VIN<\/td>Supply voltage input<\/td><\/tr>
      2<\/td>TON<\/td>On-time setting resistor<\/td><\/tr>
      3<\/td>EN<\/td>Enable \/ PWM dimming<\/td><\/tr>
      4<\/td>CS<\/td>Current sense feedback<\/td><\/tr>
      5<\/td>VCC<\/td>Internal regulator output<\/td><\/tr>
      6<\/td>GND<\/td>Ground<\/td><\/tr>
      7<\/td>BOOT<\/td>Bootstrap capacitor<\/td><\/tr>
      8<\/td>SW<\/td>Switching output<\/td><\/tr>
      Pad<\/td>GND<\/td>Exposed thermal pad<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive DRL LED driver<\/li>
      • Front\/rear fog light driver<\/li>
      • Turn signal and stop light driver<\/li>
      • Dimmable interior automotive lighting<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Notes<\/th><\/tr>
        Allegro<\/td>A6217KLJTR-1-T<\/td>1.5A output version<\/td><\/tr>
        Allegro<\/td>A6217KEJTR-T<\/td>DFN-10 package<\/td><\/tr>
        TI<\/td>TPS92512HVQDGQRQ1<\/td>Automotive LED driver<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5137","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=5137"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5137\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=5137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=5137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=5137"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=5137"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}