{"id":6300,"date":"2026-06-12T11:24:57","date_gmt":"2026-06-12T11:24:57","guid":{"rendered":"https:\/\/materialparts.com\/top250yn\/"},"modified":"2026-06-12T11:24:57","modified_gmt":"2026-06-12T11:24:57","slug":"top250yn","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/top250yn\/","title":{"rendered":"TOP250YN"},"content":{"rendered":"

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

The TOP250YN from Power Integrations is a TOPSwitch-GX series offline switcher IC delivering up to 154W (universal input) or 257W (230VAC). It integrates a 700V MOSFET with PWM controller, soft-start, frequency jitter, and multiple protection features in a TO-220-7 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
Max Output Power<\/td>\n154W (universal) \/ 257W (230VAC)<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b<\/td>\n85-265VAC (universal)<\/td>\n<\/tr>\n
Integrated MOSFET<\/td>\n700V<\/td>\n<\/tr>\n
RDS(on)<\/td>\n3.0\u03a9 (typ)<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n132kHz<\/td>\n<\/tr>\n
Control Method<\/td>\nPWM<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +150\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nTO-220-7 (Y suffix)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Integrated 700V MOSFET and PWM controller in single IC<\/li>\n
  • Line voltage OV\/UV detection for brownout and surge protection<\/li>\n
  • External current limit for precise overload protection<\/li>\n
  • Remote ON\/OFF control for standby power management<\/li>\n
  • 132kHz switching with frequency jitter to reduce EMI filtering cost<\/li>\n
  • Soft-start eliminates output overshoot at startup<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Offline flyback power supplies up to 257W<\/li>\n
    • Adapter and charger power supplies<\/li>\n
    • Set-top box and TV auxiliary supplies<\/li>\n
    • Industrial control power supplies<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TOP250YN from Power Integrations is a TOPSwitch-GX series offline switcher IC delivering up to 154W (universal input) or 257W (230VAC). It integrates a 700V MOSFET with PWM controller, soft-start, frequency jitter, and multiple protection features in a TO-220-7 package. Key Specifications Max Output Power 154W (universal) \/ 257W (230VAC) Input Voltage 85-265VAC […]<\/p>\n","protected":false},"author":2,"featured_media":6357,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[31,13],"tags":[],"chip_brand":[206],"class_list":["post-6300","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-power-integrations"],"acf":{"brief_explanation":"TOPSwitch-GX offline switcher IC, 154W\/257W, 700V MOSFET, 132kHz, TO-220-7","date_code":"","package_case":"TO-220-7 (10.4 x 9.1 x 4.6mm)","in_stock":3283,"datasheet":"https:\/\/www.power.com\/sites\/default\/files\/product-docs\/top250yn.pdf","price":"$3.85 @1ku","product_introduction":"The TOP250YN from Power Integrations is the highest-power member of the TOPSwitch-GX family, integrating a 700V power MOSFET with a PWM controller in a single TO-220-7 package. Capable of delivering up to 257W from a 230VAC input, it simplifies offline flyback power supply design by consolidating the controller, MOSFET, and protection circuitry into one component. The 132kHz switching frequency with frequency jitter reduces EMI filter costs, while line-voltage OV\/UV detection, external current limit, and remote ON\/OFF provide comprehensive system protection.","working_principle":"The TOP250YN operates as a current-mode PWM controller with an integrated 700V N-channel MOSFET. The controller senses the primary current through the MOSFET and compares it with the error amplifier output to set the duty cycle. The feedback loop is typically implemented through an optocoupler from the secondary side. The 132kHz oscillator includes frequency jitter (\u00b14kHz) that spreads the switching harmonics, reducing peak EMI emissions. During startup, an internal high-voltage current source charges the bypass capacitor from the DC bus, eliminating the need for a startup resistor. The line-sense (L) pin monitors input voltage for OV\/UV protection, while the external current limit (X) pin allows programming the overload threshold.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>C<\/td>Control pin (feedback and supply)<\/td><\/tr>
      2<\/td>S<\/td>Source (primary ground)<\/td><\/tr>
      3<\/td>S<\/td>Source (primary ground)<\/td><\/tr>
      4<\/td>L<\/td>Line-voltage sense (OV\/UV detection)<\/td><\/tr>
      5<\/td>X<\/td>External current limit \/ remote ON\/OFF<\/td><\/tr>
      6<\/td>F<\/td>Frequency selection (132kHz\/66kHz)<\/td><\/tr>
      7<\/td>D<\/td>Drain (700V MOSFET drain)<\/td><\/tr><\/table>","application_scenarios":"
      • Offline flyback power supplies for LCD TVs and monitors (up to 257W)<\/li>
      • Multi-output adapter and charger power supplies<\/li>
      • Set-top box and DVD player auxiliary power<\/li>
      • Industrial control and instrumentation offline power supplies<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Max Power<\/th>MOSFET<\/th>Frequency<\/th><\/tr>
        TOP249YN<\/td>Power Integrations<\/td>130W\/210W<\/td>700V<\/td>132kHz<\/td><\/tr>
        TOP247YN<\/td>Power Integrations<\/td>90W\/150W<\/td>700V<\/td>132kHz<\/td><\/tr>
        FSFR2100<\/td>onsemi<\/td>200W (LLC)<\/td>600V<\/td>100kHz<\/td><\/tr>
        NCP1252<\/td>onsemi<\/td>External MOSFET<\/td>N\/A<\/td>65-130kHz<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6300","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=6300"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6300\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media\/6357"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6300"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6300"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6300"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}