{"id":11188,"date":"2026-07-25T02:42:00","date_gmt":"2026-07-25T02:42:00","guid":{"rendered":"https:\/\/ic-vendor.com\/tlx9291a\/"},"modified":"2026-07-25T02:42:00","modified_gmt":"2026-07-25T02:42:00","slug":"tlx9291a","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/tlx9291a\/","title":{"rendered":"TLX9291A"},"content":{"rendered":"

Productos<\/h2>\n

The Toshiba TLX9291A is an automotive-grade phototransistor photocoupler with 80V VCEO, 3750Vrms isolation, and CTR of 100-600% in a 4-pin SO (mini-flat) package. AEC-Q101 qualified, it provides galvanic isolation for signal transmission in HEV\/EV applications.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Canales<\/td>\n1<\/td>\n<\/tr>\n
VCEO<\/td>\n80 V<\/td>\n<\/tr>\n
Tensi\u00f3n de aislamiento<\/td>\n3750 Vrms (min)<\/td>\n<\/tr>\n
CTR (Current Transfer Ratio)<\/td>\n100% min \/ 600% max @ 5mA (GB rank)<\/td>\n<\/tr>\n
VCE(sat)<\/td>\n0.4V max<\/td>\n<\/tr>\n
Forward Voltage (VF)<\/td>\n1.27V typ (1.1V min \/ 1.4V max)<\/td>\n<\/tr>\n
Forward Current (IF)<\/td>\n30 mA max<\/td>\n<\/tr>\n
Collector Current (IC)<\/td>\n50 mA max<\/td>\n<\/tr>\n
Rise\/Fall Time<\/td>\n3\u00b5s \/ 5\u00b5s typ<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
Paquete<\/td>\nSO4 (4-SO, 2.6×7.0x2.1mm)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • AEC-Q101 automotive qualified<\/li>\n
  • 3750Vrms high isolation voltage<\/li>\n

High CTR 100-600% (GB rank)<\/td>\n
  • 80V VCEO for high-voltage output<\/td>\n
  • 2.1mm low-profile SO4 package<\/td>\n
  • RoHS compliant<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • HEV\/EV signal isolation<\/li>\n
    • Automotive controller feedback isolation<\/li>\n
    • IGBT\/MOSFET gate drive isolation<\/li>\n
    • Industrial signal transmission<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Toshiba TLX9291A is an automotive-grade phototransistor photocoupler with 80V VCEO, 3750Vrms isolation, and CTR of 100-600% in a 4-pin SO (mini-flat) package. AEC-Q101 qualified, it provides galvanic isolation for signal transmission in HEV\/EV applications. Key Specifications Channels 1 VCEO 80 V Isolation Voltage 3750 Vrms (min) CTR (Current Transfer Ratio) 100% min […]<\/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":[13,56],"tags":[2460],"chip_brand":[169],"class_list":["post-11188","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-mosfets","tag-tlx9291a","chip_brand-toshiba"],"acf":{"brief_explanation":"Phototransistor coupler, 80V, 3750Vrms isolation, CTR 100-600%, AEC-Q101, SO4","date_code":"","package_case":"SO4 (4-SO, 2.6x7.0x2.1mm)","in_stock":51394,"datasheet":"https:\/\/toshiba.semicon-storage.com\/jp\/semiconductor\/product\/isolators-solid-state-relays\/detail.TLX9291A.html","price":"$0.40 @ 1ku","product_introduction":"The TLX9291A from Toshiba is a 1-channel phototransistor photocoupler in a 4-pin mini-flat SO package. Featuring 80V VCEO, 3750Vrms minimum isolation voltage, and high CTR of 100% to 600% (GB rank) at 5mA, it provides reliable galvanic isolation for signal transmission between circuits at different potentials. AEC-Q101 qualified for automotive applications, the 2.1mm low-profile package supports surface-mount assembly in HEV\/EV and industrial systems.","working_principle":"The TLX9291A consists of an infrared LED optically coupled to a phototransistor across an isolation barrier. When current flows through the LED (IF), it emits infrared light that is detected by the phototransistor base, causing collector current to flow proportional to IF \u00d7 CTR. The 3750Vrms isolation barrier prevents electrical connection between input and output circuits. The high CTR (100-600%) ensures reliable signal transmission even with low LED drive current, reducing power consumption on the input side.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>Anode<\/td>Input<\/td>LED anode<\/td><\/tr>
      2<\/td>Cathode<\/td>Input<\/td>LED cathode<\/td><\/tr>
      3<\/td>Emitter<\/td>Output<\/td>Phototransistor emitter<\/td><\/tr>
      4<\/td>Collector<\/td>Output<\/td>Phototransistor collector<\/td><\/tr><\/table>","application_scenarios":"
      • HEV\/EV battery management signal isolation<\/li>
      • Motor controller feedback isolation<\/li>
      • IGBT gate drive signal coupling<\/li>
      • Industrial PLC I\/O isolation<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        TLX9291<\/td>Toshiba<\/td>Non-A version, lower CTR<\/td><\/tr>
        TLP291<\/td>Toshiba<\/td>SO4 equivalent, different CTR rank<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/11188","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=11188"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/11188\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=11188"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=11188"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=11188"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=11188"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}