{"id":9598,"date":"2026-07-04T04:22:39","date_gmt":"2026-07-04T04:22:39","guid":{"rendered":"https:\/\/materialparts.com\/lt1534is-1trpbf\/"},"modified":"2026-07-04T04:22:39","modified_gmt":"2026-07-04T04:22:39","slug":"lt1534is-1trpbf","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/lt1534is-1trpbf\/","title":{"rendered":"LT1534IS-1#TRPBF"},"content":{"rendered":"

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

The LT1534IS-1#TRPBF is an Analog Devices (Linear Technology) low-noise isolated DC-DC converter controller that uses proprietary edge-slowing techniques to dramatically reduce conducted and radiated EMI. With push-pull isolated output capability and adjustable slew rate control, it enables compact isolated power supplies that meet stringent EMI requirements without filtering.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
\u8f93\u5165\u7535\u538b<\/td>\n2.7V to 30V<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n20 kHz to 250 kHz (adjustable)<\/td>\n<\/tr>\n
\u62d3\u6251\u7ed3\u6784<\/td>\nPush-pull isolated<\/td>\n<\/tr>\n
Gate Drive<\/td>\nExternal MOSFETs (push-pull)<\/td>\n<\/tr>\n
Output Isolation<\/td>\nTransformer-isolated output<\/td>\n<\/tr>\n
EMI Control<\/td>\nAdjustable voltage\/current slew rate<\/td>\n<\/tr>\n
Output Voltage<\/td>\nIsolated, set by transformer turns ratio<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40°C to +85°C (I-grade)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n16-SSOP (0.154″ width)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Proprietary edge-slowing technology reduces high-frequency harmonic content by 20-40 dB<\/li>\n
  • Independent voltage and current slew rate control pins for EMI optimization<\/li>\n
  • Push-pull topology provides isolation and high efficiency in compact transformers<\/li>\n
  • Adjustable switching frequency from 20 kHz to 250 kHz for design flexibility<\/li>\n
  • Cycle-by-cycle current limiting for overload protection<\/li>\n
  • Soft-start capability limits inrush current during power-up<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Medical equipment isolated power supply with low EMI<\/li>\n
    • Industrial process control isolated sensor power<\/li>\n
    • Isolated RS-485\/CAN transceiver power supply<\/li>\n
    • Automotive isolated gate driver bias supply<\/li>\n
    • Aerospace low-EMI isolated converter<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LT1534IS-1#TRPBF is an Analog Devices (Linear Technology) low-noise isolated DC-DC converter controller that uses proprietary edge-slowing techniques to dramatically reduce conducted and radiated EMI. With push-pull isolated output capability and adjustable slew rate control, it enables compact isolated power supplies that meet stringent EMI requirements without filtering. Key Specifications Input Voltage 2.7V […]<\/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":[31,13],"tags":[846],"chip_brand":[165],"class_list":["post-9598","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","tag-lt1534is-1trpbf","chip_brand-adi"],"acf":{"brief_explanation":"Low-noise isolated push-pull DC-DC controller, 2.7-30V, slew-rate EMI control, 16-SSOP, for medical\/industrial","date_code":"","package_case":"16-SSOP (6.2 x 5.3 mm)","in_stock":2196,"datasheet":"https:\/\/www.analog.com\/en\/products\/LT1534.html","price":"$6.80 @ 1ku","product_introduction":"The LT1534IS-1#TRPBF is an Analog Devices (Linear Technology) low-noise isolated DC-DC converter controller that uses patented edge-slowing technology to reduce switching transition dv\/dt and di\/dt, dramatically lowering conducted and radiated EMI without additional filtering. Operating from 2.7V to 30V input with adjustable 20-250 kHz switching frequency, the push-pull topology drives an isolation transformer to create a fully isolated output. The independent VSLEW and ISLEW pins allow designers to optimize the voltage and current slew rates for minimum EMI while maintaining efficiency, making it ideal for medical, industrial, and aerospace isolated power supplies.","working_principle":"The LT1534 controls external MOSFET switches in a push-pull configuration to drive the primary winding of an isolation transformer. The key innovation is the edge-slowing circuit: the VSLEW pin sets the maximum dv\/dt rate of the switch node voltage, and the ISLEW pin sets the maximum di\/dt rate of the switch current. By limiting these slew rates, the harmonic content of the switching waveforms is dramatically reduced \u2014 harmonics above the slew-rate-determined corner frequency are attenuated by 20-40 dB compared to hard-switched converters. This allows the converter to pass EMI compliance tests without common-mode chokes or shielded transformers, reducing BOM cost and solution size.","pin_description":"
      Pin<\/th>Function<\/th><\/tr>
      VIN<\/td>Input power supply (2.7-30V)<\/td><\/tr>
      CSET<\/td>Switching frequency set capacitor<\/td><\/tr>
      VSLEW<\/td>Voltage slew rate set resistor (dv\/dt control)<\/td><\/tr>
      ISLEW<\/td>Current slew rate set resistor (di\/dt control)<\/td><\/tr>
      A1 \/ A2<\/td>Push-pull gate drive outputs for external MOSFETs<\/td><\/tr>
      FB<\/td>Feedback input from isolated output (via optocoupler)<\/td><\/tr>
      COMP<\/td>Loop compensation pin<\/td><\/tr>
      SENSE<\/td>Current sense input for overcurrent protection<\/td><\/tr>
      GND<\/td>Ground<\/td><\/tr><\/table>","application_scenarios":"
      • Medical patient monitoring equipment 5W isolated power supply with IEC 60601 EMI compliance<\/li>
      • Industrial 4-20mA loop isolated sensor power (3.3V\/5V output)<\/li>
      • RS-485\/CAN bus isolated transceiver bias supply in noisy environments<\/li>
      • IGBT\/SiC gate driver isolated bias supply for motor drives<\/li>
      • Aerospace avionics low-EMI isolated converter for sensitive RF systems<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        LT1533IS<\/td>ADI<\/td>Higher current dual-output variant<\/td><\/tr>
        LT3999<\/td>ADI<\/td>Higher voltage push-pull transformer driver<\/td><\/tr>
        LM5022<\/td>Texas Instruments<\/td>Push-pull controller without EMI control<\/td><\/tr>
        MAX253<\/td>ADI<\/td>Simpler isolated RS-485 supply driver<\/td><\/tr>
        DCH010505S<\/td>Murata<\/td>Complete 1W isolated DC-DC module<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9598","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=9598"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9598\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9598"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}