{"id":10733,"date":"2026-07-20T11:13:23","date_gmt":"2026-07-20T11:13:23","guid":{"rendered":"https:\/\/ic-vendor.com\/sn6505bdbvr\/"},"modified":"2026-07-20T11:13:23","modified_gmt":"2026-07-20T11:13:23","slug":"sn6505bdbvr","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/sn6505bdbvr\/","title":{"rendered":"SN6505BDBVR"},"content":{"rendered":"

Productos<\/h2>\n

The SN6505BDBVR from Texas Instruments is a low-noise, low-EMI push-pull transformer driver designed for isolated power supplies. Operating from 2.25 V to 5.5 V with a 420-kHz internal oscillator, it delivers up to 1 A output drive current in a tiny 6-pin SOT-23 package. The device features spread-spectrum clocking, slew-rate control, and soft-start for ultra-low noise operation.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n
Input Voltage Range<\/td>\n2.25 V to 5.5 V<\/td>\n<\/tr>\n
Switching Frequency<\/td>\n420 kHz (typ)<\/td>\n<\/tr>\n
Output Drive Current<\/td>\n1 A at 5 V<\/td>\n<\/tr>\n
RDS(on)<\/td>\n0.25 ohm (max) at 4.5 V<\/td>\n<\/tr>\n
Current Limit<\/td>\n1.7 A (typ)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-55 to 125 degC<\/td>\n<\/tr>\n
Paquete<\/td>\nSOT-23-6 (2.9 x 2.8 mm)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Push-pull driver for center-tapped transformers<\/li>\n
  • Spread-spectrum clocking for ultra-low EMI<\/li>\n
  • Slew-rate control on output switches<\/li>\n
  • Soft-start reduces inrush current<\/li>\n
  • External clock synchronization input<\/li>\n
  • Thermal shutdown and undervoltage lockout<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Isolated RS-485\/RS-232\/CAN power supplies<\/li>\n
    • Medical equipment isolated power<\/li>\n
    • Industrial automation isolated rails<\/li>\n
    • Smart meter isolated DC-DC<\/li>\n
    • EV charging station isolation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SN6505BDBVR from Texas Instruments is a low-noise, low-EMI push-pull transformer driver designed for isolated power supplies. Operating from 2.25 V to 5.5 V with a 420-kHz internal oscillator, it delivers up to 1 A output drive current in a tiny 6-pin SOT-23 package. The device features spread-spectrum clocking, slew-rate control, and soft-start […]<\/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":[36,13],"tags":[2073],"chip_brand":[138],"class_list":["post-10733","post","type-post","status-publish","format-standard","hentry","category-gate-driver-ics","category-integrated-circuits-ics","tag-sn6505bdbvr","chip_brand-ti"],"acf":{"brief_explanation":"420kHz push-pull transformer driver, 2.25-5.5V, 1A drive, spread-spectrum, SOT-23-6","date_code":"","package_case":"SOT-23-6 (2.9 x 2.8 x 1.15 mm)","in_stock":6744,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/sn6505b.pdf","price":"$0.81 @ 1ku","product_introduction":"The SN6505BDBVR from Texas Instruments is a low-noise, low-EMI push-pull transformer driver specifically designed for small isolated power supplies. It drives low-profile, center-tapped transformers from a 2.25-V to 5.5-V DC source. Ultra-low noise and EMI are achieved through slew-rate control of the output switch voltage and spread-spectrum clocking (SSC). The device integrates an oscillator followed by gate drive circuitry providing complementary output signals to drive ground-referenced N-channel power switches. Two internal 1-A power MOSFET switches ensure reliable startup under heavy load conditions.","working_principle":"The SN6505BDBVR operates as a push-pull converter driver. The internal 420-kHz oscillator generates complementary gate drive signals for two internal N-channel MOSFET switches. Each MOSFET connects the transformer primary winding to ground alternately, creating an AC voltage across the primary. The center-tapped primary is connected to the input supply, and the MOSFETs drive each half-winding in turn. The secondary winding is rectified through diodes to produce the isolated output voltage. Spread-spectrum clocking dithers the switching frequency to reduce peak EMI emissions. Slew-rate control on the output transitions further reduces high-frequency harmonic content. Soft-start gradually increases the duty cycle during startup to limit inrush current.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>D1<\/td>Output<\/td>Switch output 1 (drain of MOSFET 1)<\/td><\/tr>
      2<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      3<\/td>D2<\/td>Output<\/td>Switch output 2 (drain of MOSFET 2)<\/td><\/tr>
      4<\/td>VCC<\/td>Power<\/td>Input supply voltage<\/td><\/tr>
      5<\/td>EN\/CLK<\/td>Input<\/td>Enable (active high) \/ external clock input<\/td><\/tr>
      6<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr><\/table>","application_scenarios":"
      • Isolated power for RS-485, RS-232, and CAN bus transceivers<\/li>
      • Medical device isolated power supplies<\/li>
      • Industrial automation and process control isolated rails<\/li>
      • Smart meter and energy measurement isolation<\/li>
      • EV charging communication isolation power<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>SN6505ADBVR<\/td>SOT-23-6<\/td>160 kHz oscillator version<\/td><\/tr>
        TI<\/td>SN6505DDBVR<\/td>SOT-23-6<\/td>2.1 MHz oscillator version<\/td><\/tr>
        TI<\/td>SN6501DBVR<\/td>SOT-23-6<\/td>Lower cost, 350 kHz, no SSC<\/td><\/tr>
        TI<\/td>LM5050-1SD\/NOPB<\/td>SOT-23-6<\/td>OR-ing controller alternative<\/td><\/tr>
        Maxim<\/td>MAX253CSA+<\/td>SOIC-8<\/td>Similar transformer driver<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10733","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/comments?post=10733"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10733\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=10733"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=10733"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=10733"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=10733"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}