{"id":3547,"date":"2026-06-06T10:25:36","date_gmt":"2026-06-06T10:25:36","guid":{"rendered":"https:\/\/materialparts.com\/tny280pn\/"},"modified":"2026-06-06T10:25:36","modified_gmt":"2026-06-06T10:25:36","slug":"tny280pn","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/tny280pn\/","title":{"rendered":"TNY280PN"},"content":{"rendered":"

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

The TNY280PN from Power Integrations is a TinySwitch-III series off-line flyback switcher integrating a 700V power MOSFET, oscillator, and control circuitry. Using simple ON\/OFF control without loop compensation, it delivers up to 20W (enclosed adapter, 230VAC) or 14W (universal input). The DIP-8 through-hole package enables easy heat sinking to the PCB. Features include selectable current limit, frequency jittering for reduced EMI, and auto-restart protection.<\/p>\n

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\u0627\u0644\u0646\u0648\u0639<\/td>\nOff-Line Flyback Switcher<\/td>\n<\/tr>\n
\u0627\u0644\u0637\u0648\u0628\u0648\u0644\u0648\u062c\u064a\u0627<\/td>\nFlyback (ON\/OFF control)<\/td>\n<\/tr>\n
Internal MOSFET<\/td>\n700V<\/td>\n<\/tr>\n
Output Power (Enclosed, 230V)<\/td>\n20W<\/td>\n<\/tr>\n
Output Power (Enclosed, 85-265V)<\/td>\n14W<\/td>\n<\/tr>\n
Output Power (Open Frame, 230V)<\/td>\n36.5W<\/td>\n<\/tr>\n
\u062a\u0631\u062f\u062f \u0627\u0644\u062a\u062d\u0648\u064a\u0644<\/td>\n132 kHz (with jitter)<\/td>\n<\/tr>\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n85 – 265 VAC<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nDIP-8 (Through-Hole)<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to 150 C (Tj)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Integrated 700V power MOSFET reduces BOM count<\/li>\n
  • Simple ON\/OFF control, no loop compensation needed<\/li>\n
  • Selectable current limit via BP\/M capacitor value<\/li>\n
  • Frequency jittering reduces EMI filter cost<\/li>\n
  • No-load consumption < 150 mW at 265VAC<\/li>\n
  • Auto-restart limits output to < 3% during faults<\/li>\n
  • Built-in thermal shutdown with automatic recovery<\/li>\n
  • Self-biased: no bias winding required<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Cell phone and PDA chargers<\/li>\n
    • Digital camera and portable audio adapters<\/li>\n
    • PC standby and auxiliary power supplies<\/li>\n
    • Home appliance power supplies<\/li>\n
    • Industrial and metering power supplies<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TNY280PN from Power Integrations is a TinySwitch-III series off-line flyback switcher integrating a 700V power MOSFET, oscillator, and control circuitry. Using simple ON\/OFF control without loop compensation, it delivers up to 20W (enclosed adapter, 230VAC) or 14W (universal input). The DIP-8 through-hole package enables easy heat sinking to the PCB. Features include […]<\/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":[31,13],"tags":[],"chip_brand":[206],"class_list":["post-3547","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-power-integrations"],"acf":{"brief_explanation":"TinySwitch-III offline switcher, 700V MOSFET, 20W, ON\/OFF control, DIP-8","date_code":"","package_case":"DIP-8 (9.60 x 7.87 x 5.33 mm)","in_stock":10385,"datasheet":"https:\/\/www.power.com\/sites\/default\/files\/product-docs\/tny274-280.pdf","price":"$0.82 @ 1ku","product_introduction":"The TNY280PN from Power Integrations is a TinySwitch-III series energy-efficient off-line switcher integrating a 700V power MOSFET, oscillator, high-voltage switched current source, current limit, and thermal shutdown into a single DIP-8 package. Using a simple ON\/OFF control scheme that eliminates the need for loop compensation, it provides constant efficiency down to very light loads. The device supports up to 20W in enclosed adapter applications at 230VAC and 14W at universal input. Selectable current limit via the BYPASS\/MULTI-FUNCTION pin capacitor extends power capability for peak loads.","working_principle":"The TNY280PN operates using ON\/OFF control rather than traditional PWM. At the start of each 132 kHz switching cycle, the EN\/UV pin is sampled. If the pin is high (output below regulation), the internal MOSFET is turned on and remains on until the current ramps to the current limit. If the pin is low, the cycle is skipped. This naturally regulates output voltage without error amplifier compensation. A state machine adjusts the current limit based on the pattern of enabled\/skipped cycles: full current limit at heavy loads, reduced at lighter loads. Frequency jittering (\u00b14 kHz) spreads EMI energy to simplify filter design. The internal thermal shutdown activates at approximately 142C.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>BP\/M<\/td>Power<\/td>Bypass\/multi-function (decoupling cap)<\/td><\/tr>
      2<\/td>EN\/UV<\/td>Input<\/td>Enable\/under-voltage sense<\/td><\/tr>
      3<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr>
      4-7<\/td>DRAIN<\/td>Power<\/td>Internal MOSFET drain (4 pins)<\/td><\/tr>
      8<\/td>SOURCE<\/td>Power<\/td>Internal MOSFET source \/ ground<\/td><\/tr><\/table>","application_scenarios":"
      • Charger\/adapter: Cell phone, PDA, and portable device wall adapters<\/li>
      • Standby power: PC standby and auxiliary ATX power supplies<\/li>
      • Consumer: DVD, set-top box, and appliance power supplies<\/li>
      • Industrial: Isolated low-power supplies for control and metering<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        PI<\/td>TNY279PN<\/td>DIP-8<\/td>17W enclosed\/230V, lower power<\/td><\/tr>
        PI<\/td>TNY287PN<\/td>DIP-8<\/td>TinySwitch-4, higher power<\/td><\/tr>
        PI<\/td>LNK626PG<\/td>DIP-8<\/td>LinkSwitch-XT2, non-isolated buck<\/td><\/tr>
        MPS<\/td>MP3910GJ-A<\/td>SOP-8<\/td>Offline flyback controller<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3547","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=3547"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3547\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=3547"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=3547"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=3547"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=3547"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}