{"id":9711,"date":"2026-07-05T09:39:00","date_gmt":"2026-07-05T09:39:00","guid":{"rendered":"https:\/\/materialparts.com\/tny255pn-2\/"},"modified":"2026-07-05T09:39:00","modified_gmt":"2026-07-05T09:39:00","slug":"tny255pn-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/tny255pn-2\/","title":{"rendered":"TNY255PN"},"content":{"rendered":"<h2>\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n<p>The TNY255PN is an off-line switcher IC from Power Integrations&#8217; TinySwitch family, integrating a 700V power MOSFET, oscillator, high-voltage switch current source, current limit, and thermal shutdown circuit. It operates at 130kHz switching frequency and is designed for 4-10W (230VAC) or 3.5-6.5W (85-265VAC universal) flyback converters with simple ON\/OFF control.<\/p>\n<h2>\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n<ul>\n<li>Topology: Flyback (isolated)<\/li>\n<li>Integrated MOSFET: 700V<\/li>\n<li>Input Voltage: 85-265 VAC<\/li>\n<li>Output Power: 4-10W (230VAC), 3.5-6.5W (universal)<\/li>\n<li>Switching Frequency: 130kHz<\/li>\n<li>Max Duty Cycle: 67%<\/li>\n<li>Control: ON\/OFF (no loop compensation needed)<\/li>\n<li>No Bias Winding Required<\/li>\n<li>Standby Power: ~30mW @115VAC, ~60mW @230VAC<\/li>\n<li>Package: DIP-8<\/li>\n<li>Operating Temperature: -40\u00b0C ~ +150\u00b0C<\/li>\n<\/ul>\n<h2>\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n<ul>\n<li>Integrated 700V MOSFET for minimal external components<\/li>\n<li>Simple ON\/OFF control eliminates loop compensation<\/li>\n<li>Auto-restart and thermal shutdown protection<\/li>\n<li>No bias winding needed \u2014 starts from DRAIN voltage<\/li>\n<li>Meets Blue Angel, Energy Star standby requirements<\/li>\n<li>130kHz operation for smaller transformer size<\/li>\n<\/ul>\n<h2>\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n<ul>\n<li>Cell phone and adapter chargers<\/li>\n<li>PC standby power supplies<\/li>\n<li>Appliance power supplies<\/li>\n<li>Isolated auxiliary power<\/li>\n<li>IoT device power adapters<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Product Overview The TNY255PN is an off-line switcher IC from Power Integrations&#8217; TinySwitch family, integrating a 700V power MOSFET, oscillator, high-voltage switch current source, current limit, and thermal shutdown circuit. It operates at 130kHz switching frequency and is designed for 4-10W (230VAC) or 3.5-6.5W (85-265VAC universal) flyback converters with simple ON\/OFF control. Key Specifications Topology: [&hellip;]<\/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":[13,29],"tags":[964],"chip_brand":[206],"class_list":["post-9711","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","tag-tny255pn","chip_brand-power-integrations"],"acf":{"brief_explanation":"TinySwitch 700V off-line switcher, 130kHz, 4-10W flyback, DIP-8, ON\/OFF control, -40~150\u00b0C","date_code":"","package_case":"DIP-8 \/ PDIP-8","in_stock":10996,"datasheet":"https:\/\/www.mouser.com\/datasheet\/2\/328\/tny253-255-1511707.pdf","price":"$0.71 @ 2.5ku","product_introduction":"The TNY255PN from Power Integrations is a TinySwitch off-line switcher with integrated 700V MOSFET, 130kHz operation, and simple ON\/OFF control for 4-10W flyback power supplies.","working_principle":"The TNY255 operates in a simple ON\/OFF control scheme. The ENABLE (EN) pin is sampled at each clock cycle. If EN is low, the MOSFET turns on for that cycle; if high, the MOSFET skips the cycle. This provides regulation without needing loop compensation. The device self-powers from the DRAIN pin through an internal high-voltage current source, eliminating the need for a bias winding.","pin_description":"<table><tr><th>Pin<\/th><th>Name<\/th><th>Function<\/th><\/tr><tr><td>1<\/td><td>BYPASS (BP)<\/td><td>External bypass cap, internal 5.8V supply<\/td><\/tr><tr><td>2<\/td><td>SOURCE (S)<\/td><td>MOSFET source, primary return<\/td><\/tr><tr><td>3<\/td><td>SOURCE (S)<\/td><td>MOSFET source, primary return<\/td><\/tr><tr><td>4<\/td><td>ENABLE (EN)<\/td><td>Enable input, low = MOSFET on<\/td><\/tr><tr><td>5<\/td><td>DRAIN (D)<\/td><td>MOSFET drain, 700V, startup current source<\/td><\/tr><tr><td>6-8<\/td><td>SOURCE (S)<\/td><td>MOSFET source connections<\/td><\/tr><\/table>","application_scenarios":"<ul><li>Cell phone charger\/adapters (5V\/1A)<\/li><li>PC standby 5V\/2A power supply<\/li><li>White goods auxiliary power<\/li><li>IoT device AC-DC adapter<\/li><\/ul>","alternative_models":"<table><tr><th>Model<\/th><th>Manufacturer<\/th><th>Power<\/th><th>Freq<\/th><\/tr><tr><td>TNY275PN<\/td><td>Power Integrations<\/td><td>8.5-25W<\/td><td>132kHz<\/td><\/tr><tr><td>TNY254PN<\/td><td>Power Integrations<\/td><td>2-5W<\/td><td>44kHz<\/td><\/tr><tr><td>Viper12A<\/td><td>STMicroelectronics<\/td><td>5-12W<\/td><td>60kHz<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9711","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=9711"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9711\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=9711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=9711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=9711"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=9711"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}