{"id":7538,"date":"2026-06-26T04:21:35","date_gmt":"2026-06-26T04:21:35","guid":{"rendered":"https:\/\/materialparts.com\/tle8104e\/"},"modified":"2026-06-26T04:21:35","modified_gmt":"2026-06-26T04:21:35","slug":"tle8104e","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tle8104e\/","title":{"rendered":"TLE8104E"},"content":{"rendered":"

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

The TLE8104E from Infineon Technologies is a quad low-side powertrain switch in Smart Power Technology (SPT) with SPI control and diagnosis, designed for automotive applications in DSO-20 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u6e20\u9053<\/td>\n4 low-side DMOS switches<\/td>\n<\/tr>\n
Operating Voltage (VS)<\/td>\n4.5V to 5.5V<\/td>\n<\/tr>\n
Drain-Source Voltage<\/td>\n45V to 60V (VDS(AZ))<\/td>\n<\/tr>\n
RDS(ON) at 25C<\/td>\n320 mOhm typical<\/td>\n<\/tr>\n
RDS(ON) at 150C<\/td>\n650 mOhm max<\/td>\n<\/tr>\n
Nominal Load Current<\/td>\n1 A per channel<\/td>\n<\/tr>\n
Current Limitation<\/td>\n3 A min per channel<\/td>\n<\/tr>\n
Interface<\/td>\n8-bit SPI (control + diagnosis)<\/td>\n<\/tr>\n
Protection<\/td>\nOverload, overtemperature, overvoltage<\/td>\n<\/tr>\n
Diagnosis<\/td>\nOpen load, short to GND, overtemp warning<\/td>\n<\/tr>\n
AEC Qualified<\/td>\nYes<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nDSO-20<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to +150 C (TJ)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Four independent DMOS low-side switches with SPI control<\/li>\n
  • Parallel input control for PWM applications (e.g. gasoline port injection)<\/li>\n
  • Programmable active-high or active-low parallel inputs<\/li>\n
  • Comprehensive protection: overload, overtemperature, overvoltage<\/li>\n
  • Fault diagnosis via SPI or external FAULT pin<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Automotive gasoline port injection control<\/li>\n
    • Automotive relay and solenoid switching<\/li>\n
    • Industrial 5V logic power switch array<\/li>\n
    • Motor drive pre-driver with SPI diagnosis<\/li>\n
    • Automotive body controller output stage<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TLE8104E from Infineon Technologies is a quad low-side powertrain switch in Smart Power Technology (SPT) with SPI control and diagnosis, designed for automotive applications in DSO-20 package. Key Specifications Channels 4 low-side DMOS switches Operating Voltage (VS) 4.5V to 5.5V Drain-Source Voltage 45V to 60V (VDS(AZ)) RDS(ON) at 25C 320 mOhm typical […]<\/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":[],"chip_brand":[173],"class_list":["post-7538","post","type-post","status-publish","format-standard","hentry","category-gate-driver-ics","category-integrated-circuits-ics","chip_brand-infineon"],"acf":{"brief_explanation":"Quad low-side auto switch, SPI, 1A\/ch, DSO-20","date_code":"","package_case":"DSO-20 (12.6 x 7.6 x 2.35 mm)","in_stock":4567,"datasheet":"https:\/\/www.infineon.com\/dgdl\/Infineon-TLE8104E-DS-v01_04-EN.pdf","price":"$2.80 @ 1ku","product_introduction":"The TLE8104E from Infineon Technologies is a quad low-side switch in Smart Power Technology (SPT) designed for automotive powertrain applications. The device features four open-drain DMOS output stages with 320mOhm typical RDS(ON) at 25C, each rated for 1A nominal load current with 3A minimum current limitation. The output stages can be controlled directly by parallel inputs for PWM applications such as gasoline port injection, or by 8-bit SPI for diagnosis and control. The parallel inputs are programmable as active-high or active-low. Comprehensive protection includes overload, overtemperature, and overvoltage shutdown. Diagnosis is available via SPI status registers or the external FAULT pin. The device is AEC qualified for automotive use.","working_principle":"The TLE8104E operates as a quad low-side DMOS switch array. (1) Each of the four output channels consists of an N-channel DMOS transistor connected between the load (drain) and ground (source). When the channel is turned on, current flows from the battery through the load and through the DMOS transistor to ground. The 320mOhm RDS(ON) minimizes power dissipation at the nominal 1A load current. (2) The device can be controlled via two methods: parallel inputs (IN1-IN4) for direct PWM control, or 8-bit SPI interface for serial control and diagnosis. The PRG pin configures parallel inputs as active-high or active-low. The SPI provides readback of diagnostic information including overload flags, open-load detection, and overtemperature warning for each channel. (3) Protection circuits monitor each channel independently. Overload protection limits the current to 3-6A when a short circuit occurs. Overtemperature protection shuts down the affected channel when junction temperature exceeds 170-200C with 10K hysteresis. The overvoltage clamp protects the DMOS transistors from inductive kickback when switching off inductive loads.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1-2<\/td>OUT1, OUT2<\/td>DMOS output drains (channels 1-2)<\/td><\/tr>
      3-4<\/td>VS, GND<\/td>5V supply and ground<\/td><\/tr>
      5<\/td>IN1<\/td>Parallel input channel 1<\/td><\/tr>
      6<\/td>IN2<\/td>Parallel input channel 2<\/td><\/tr>
      7<\/td>IN3<\/td>Parallel input channel 3<\/td><\/tr>
      8<\/td>IN4<\/td>Parallel input channel 4<\/td><\/tr>
      9<\/td>PRG<\/td>Input polarity programming<\/td><\/tr>
      10<\/td>RESET<\/td>Reset input (active low)<\/td><\/tr>
      11<\/td>CS<\/td>SPI chip select<\/td><\/tr>
      12<\/td>SCLK<\/td>SPI clock<\/td><\/tr>
      13<\/td>SI<\/td>SPI serial data input<\/td><\/tr>
      14<\/td>SO<\/td>SPI serial data output<\/td><\/tr>
      15<\/td>FAULT<\/td>Fault diagnosis output<\/td><\/tr>
      16-17<\/td>OUT3, OUT4<\/td>DMOS output drains (channels 3-4)<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive gasoline port injection control with PWM parallel inputs<\/li>
      • Automotive relay and solenoid switching with SPI diagnosis<\/li>
      • Industrial 5V logic power switch array with overcurrent protection<\/li>
      • Motor drive pre-driver with comprehensive SPI diagnostic readback<\/li>
      • Automotive body controller output stage with fault detection<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        TLE8106E<\/td>Infineon<\/td>6-channel version, same family<\/td><\/tr>
        TLE6244GP<\/td>Infineon<\/td>4-ch low-side, different package<\/td><\/tr>
        MC33880<\/td>NXP<\/td>8-ch low-side, SPI, similar<\/td><\/tr>
        L9349<\/td>ST<\/td>4-ch low-side, SPI diagnosis<\/td><\/tr>
        BTN8982TA<\/td>Infineon<\/td>Half-bridge, higher current<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7538","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=7538"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7538\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7538"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}