{"id":10546,"date":"2026-07-20T05:42:01","date_gmt":"2026-07-20T05:42:01","guid":{"rendered":"https:\/\/ic-vendor.com\/lnk3208g-tl-2\/"},"modified":"2026-07-20T05:42:01","modified_gmt":"2026-07-20T05:42:01","slug":"lnk3208g-tl-2","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/lnk3208g-tl-2\/","title":{"rendered":"LNK3208G-TL"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The Power Integrations LNK3208G-TL is a LinkSwitch-TN2 series non-isolated offline switcher IC featuring a 725V integrated power MOSFET with the highest output current in the family at 775 mA in CCM mode. It supports buck, buck-boost, and flyback topologies with comprehensive protection in an SMD-8C package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Series<\/td>\nLinkSwitch-TN2<\/td>\n<\/tr>\n
Breakdown Voltage<\/td>\n725 V<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n85 VAC to 265 VAC<\/td>\n<\/tr>\n
Output Current (CCM, 230V)<\/td>\n775 mA<\/td>\n<\/tr>\n
Output Current (MDCM, 230V)<\/td>\n485 mA<\/td>\n<\/tr>\n
Output Voltage<\/td>\nUp to 50 V<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n66 kHz<\/td>\n<\/tr>\n
Max Duty Cycle<\/td>\n69%<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to +150 C (TJ)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSMD-8C (8-SMD, 7 Leads)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Highest output current in LinkSwitch-TN2 family (775 mA CCM)<\/li>\n
  • Integrated 725V power MOSFET with excellent surge withstand<\/li>\n
  • No-load consumption below 30 mW with external bias<\/li>\n
  • Standby supply current less than 100 uA<\/li>\n
  • Frequency jittering reduces EMI filter complexity<\/li>\n
  • Selectable current limit modes for design flexibility<\/li>\n
  • Comprehensive protection including OVP, OVL, OTP, short-circuit<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • High-current appliance power supplies<\/li>\n
    • Chargers for cell phones and PDAs<\/li>\n
    • Set-top box auxiliary power<\/li>\n
    • Portable audio device power<\/li>\n
    • Linear adapter replacements<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Power Integrations LNK3208G-TL is a LinkSwitch-TN2 series non-isolated offline switcher IC featuring a 725V integrated power MOSFET with the highest output current in the family at 775 mA in CCM mode. It supports buck, buck-boost, and flyback topologies with comprehensive protection in an SMD-8C package. Key Specifications Series LinkSwitch-TN2 Breakdown Voltage 725 […]<\/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":[31,13],"tags":[1839],"chip_brand":[206],"class_list":["post-10546","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","tag-lnk3208g-tl","chip_brand-power-integrations"],"acf":{"brief_explanation":"725V LinkSwitch-TN2 offline switcher, 775mA max output, 66kHz, buck\/buck-boost\/flyback, SMD-8C","date_code":"","package_case":"SMD-8C (8-SMD, 7 Leads, Gull Wing)","in_stock":3892,"datasheet":"https:\/\/www.power.com\/products\/linkswitch\/linkswitch-tn2\/lnk3208g","price":"$0.72 @ 1ku","product_introduction":"The Power Integrations LNK3208G-TL is the highest output current member of the LinkSwitch-TN2 family, providing up to 775 mA in CCM mode and 485 mA in MDCM mode at 230VAC. The device integrates a 725V power MOSFET, oscillator, on\/off control, high-voltage switched current source for self-biasing, frequency jittering, cycle-by-cycle current limit, hysteretic thermal shutdown, and comprehensive output and input overvoltage protection on a single monolithic IC. It supports buck, buck-boost, and flyback topologies and is designed for non-isolated off-line power supplies where higher output current is needed compared to other LinkSwitch-TN2 variants.","working_principle":"The LNK3208G-TL uses primary-side on\/off control to regulate the output voltage without requiring an optocoupler or secondary-side feedback. The integrated 725V MOSFET switches at 66 kHz with frequency jittering for EMI reduction. A high-voltage switched current source provides self-biasing from the DRAIN pin. The on\/off control scheme maintains high efficiency across the entire load range by enabling or disabling switching cycles. The BYPASS pin capacitor selects between high and low current limit modes - the high mode provides maximum continuous output current (775 mA CCM) while the low mode permits smaller, lower-cost inductors. Protection includes cycle-by-cycle current limit, auto-restart for fault conditions, output OVP, input OVL, and hysteretic thermal shutdown at 135-150 degC.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>DRAIN<\/td>Power<\/td>MOSFET drain terminal; also provides startup bias<\/td><\/tr>\n
      2<\/td>BYPASS<\/td>Power<\/td>Internal supply bypass; selects current limit mode<\/td><\/tr>\n
      3<\/td>FB<\/td>Input<\/td>Feedback input for regulation control<\/td><\/tr>\n
      4<\/td>SOURCE<\/td>Power<\/td>MOSFET source; primary ground reference<\/td><\/tr>\n
      5-7<\/td>SOURCE<\/td>Power<\/td>Additional source pins for PCB heat sinking<\/td><\/tr>\n
      8<\/td>DRAIN<\/td>Power<\/td>Additional drain connection<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • High-current non-isolated buck converters for appliances<\/li>\n
      • Cell phone and PDA charger power supplies<\/li>\n
      • Set-top box and DVD player auxiliary power<\/li>\n
      • Portable audio device power adapters<\/li>\n
      • Linear adapter and RCC replacement designs<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        Power Integrations<\/td>LNK3204D-TL<\/td>SMD-8C<\/td>Lower output current variant (170mA)<\/td><\/tr>\n
        Power Integrations<\/td>LNK3294G-TL<\/td>SMD-8C<\/td>900V variant for industrial margin<\/td><\/tr>\n
        Power Integrations<\/td>LNK3208P-TL<\/td>DIP-8<\/td>Through-hole variant<\/td><\/tr>\n
        onsemi<\/td>NCP1014ST<\/td>SOT-223<\/td>Similar monolithic switcher IC<\/td><\/tr>\n
        STMicroelectronics<\/td>VIPer12ADIP<\/td>DIP-8<\/td>Similar offline switcher<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10546","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=10546"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10546\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10546"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10546"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}