{"id":11557,"date":"2026-07-26T11:56:41","date_gmt":"2026-07-26T11:56:41","guid":{"rendered":"https:\/\/ic-vendor.com\/uln2003aidr\/"},"modified":"2026-07-26T11:56:41","modified_gmt":"2026-07-26T11:56:41","slug":"uln2003aidr","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/uln2003aidr\/","title":{"rendered":"ULN2003AIDR"},"content":{"rendered":"

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

The TI ULN2003AIDR is a 7-channel Darlington transistor array. 500-500mA per channel, SOIC-16 for relay and stepper motor driving.<\/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
\u0627\u0644\u0646\u0648\u0639<\/td>\n7-Channel Darlington Transistor Array<\/td>\n<\/tr>\n
\u0627\u0644\u0642\u0646\u0648\u0627\u062a<\/td>\n7<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n500 mA per channel<\/td>\n<\/tr>\n
Collector Voltage<\/td>\n50V<\/td>\n<\/tr>\n
Input Compatibility<\/td>\n5V TTL\/CMOS<\/td>\n<\/tr>\n
Clamping Diodes<\/td>\nYes (for inductive loads)<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to +85C<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOIC-16 (3.9×9.9mm)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 7 Darlington drivers in one IC<\/li>\n
  • 500mA per channel<\/li>\n
  • 50V collector voltage<\/li>\n
  • Input compatible with 5V TTL\/CMOS<\/li>\n
  • Integrated clamp diodes for inductive loads<\/li>\n
  • SOIC-16 footprint<\/li>\n
  • RoHS compliant<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Relay driver (7 relays)<\/li>\n
    • Unipolar stepper motor driver<\/li>\n
    • LED display driver<\/li>\n
    • Solenoid driver<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TI ULN2003AIDR is a 7-channel Darlington transistor array. 500-500mA per channel, SOIC-16 for relay and stepper motor driving. Key Specifications Type 7-Channel Darlington Transistor Array Channels 7 Output Current 500 mA per channel Collector Voltage 50V Input Compatibility 5V TTL\/CMOS Clamping Diodes Yes (for inductive loads) Operating Temp -40 to +85C Package […]<\/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],"tags":[2825],"chip_brand":[138],"class_list":["post-11557","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","tag-uln2003aidr","chip_brand-ti"],"acf":{"brief_explanation":"7-ch Darlington array, 500mA\/ch, SOIC-16, -40 to 85C","date_code":"","package_case":"SOIC-16 (3.9x9.9mm)","in_stock":6295,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/uln2003a.pdf","price":"$0.60 @ 3ku","product_introduction":"The ULN2003AIDR from TI is a 7-channel Darlington transistor array in SOIC-16 package. 500mA per channel with 50V collector voltage for relay and stepper motor driving. Input compatible with 5V TTL\/CMOS logic. Integrated flyback clamp diodes protect against inductive kickback from relay coils and stepper windings. One of the most widely used driver ICs for low-current loads.","working_principle":"Each channel consists of a Darlington pair (two NPN transistors in cascade) providing high current gain (hFE ~1000). A 2.7kOhm series base resistor allows direct connection to 5V TTL\/CMOS outputs. The Darlington saturation voltage is ~1.1V (Vce_sat of two Vbe drops). The integrated clamp diode from each output to a common COM pin provides a path for inductive kickback current, protecting the Darlington transistors.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1-7<\/td>IN1-7<\/td>Logic inputs<\/td><\/tr>
      8<\/td>GND<\/td>Ground (emitter)<\/td><\/tr>
      9<\/td>COM<\/td>Clamp diode common<\/td><\/tr>
      10-16<\/td>OUT7-1<\/td>Open-collector outputs<\/td><\/tr><\/table>","application_scenarios":"
      • Relay driver<\/li>
      • Stepper motor<\/li>
      • LED display<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/11557","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=11557"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/11557\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=11557"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=11557"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=11557"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=11557"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}