{"id":3697,"date":"2026-06-08T02:14:03","date_gmt":"2026-06-08T02:14:03","guid":{"rendered":"https:\/\/materialparts.com\/tps2549irterq1\/"},"modified":"2026-06-08T02:14:03","modified_gmt":"2026-06-08T02:14:03","slug":"tps2549irterq1","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps2549irterq1\/","title":{"rendered":"TPS2549IRTERQ1"},"content":{"rendered":"

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

The TPS2549IRTERQ1 from Texas Instruments is an automotive USB charging port controller with integrated power switch and cable droop compensation. It supports USB BC1.2, Apple, and Samsung divider modes, delivering up to 2.1A in a 16-pin WQFN package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
\u7c7b\u578b<\/td>\nUSB Charging Port Controller + Power Switch<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n4.5V to 5.5V<\/td>\n<\/tr>\n
Current Limit<\/td>\nAdjustable up to 2.1A<\/td>\n<\/tr>\n
RDS(ON)<\/td>\n70mOhm (typ)<\/td>\n<\/tr>\n
USB Modes<\/td>\nBC1.2 CDP\/DCP, Apple, Samsung<\/td>\n<\/tr>\n
Droop Compensation<\/td>\nYes (cable)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to 85 C<\/td>\n<\/tr>\n
\u8d44\u683c<\/td>\nAEC-Q100<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Integrated USB charging port controller and power switch<\/li>\n
  • Multiple USB charging scheme detection<\/li>\n
  • Cable droop compensation for accurate charging<\/li>\n
  • EN pin for logic control<\/li>\n
  • Thermal shutdown and overcurrent protection<\/li>\n
  • AEC-Q100 automotive qualified<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Automotive USB charging ports<\/li>\n
    • In-vehicle infotainment USB interfaces<\/li>\n
    • Car charger adapters<\/li>\n
    • Automotive head unit USB power<\/li>\n
    • USB charging docks for vehicles<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS2549IRTERQ1 from Texas Instruments is an automotive USB charging port controller with integrated power switch and cable droop compensation. It supports USB BC1.2, Apple, and Samsung divider modes, delivering up to 2.1A in a 16-pin WQFN package. Key Specifications Type USB Charging Port Controller + Power Switch Supply Voltage 4.5V to 5.5V […]<\/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":[36,13],"tags":[],"chip_brand":[138],"class_list":["post-3697","post","type-post","status-publish","format-standard","hentry","category-gate-driver-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Automotive USB charge port controller, 2.1A, BC1.2+Apple+Samsung, droop comp, WQFN-16","date_code":"","package_case":"WQFN-16 (3.0 x 3.0 x 0.9 mm)","in_stock":5104,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps2549-q1.pdf","price":"$1.03 @ 1ku","product_introduction":"The TPS2549IRTERQ1 from Texas Instruments is an automotive-qualified USB charging port controller with an integrated power switch and cable droop compensation. It supports multiple USB charging schemes including USB BC1.2 CDP\/DCP, Apple 1A\/2.1A, and Samsung divider modes, enabling compatibility with a wide range of portable devices. The integrated 70mOhm power switch supports output currents up to 2.1A. Cable droop compensation maintains accurate voltage at the device connector by compensating for IR drop in the USB cable. The device features an enable pin for logic control, overcurrent protection, thermal shutdown, and reverse current blocking. AEC-Q100 qualified, the TPS2549IRTERQ1 is designed for automotive USB charging applications in a compact 16-pin WQFN package.","working_principle":"The TPS2549IRTERQ1 operates as an integrated USB charging port controller and high-side power switch. Key subsystems include: (1) USB Charging Controller - detects the attached device type and applies the appropriate D+\/D- voltage divider scheme to signal the correct charging current; (2) High-Side Power Switch - a 70mOhm N-channel MOSFET with charge pump gate driver controls power delivery to the USB port; (3) Cable Droop Compensation - monitors output current and adjusts the regulation voltage to compensate for IR drop in the USB cable; (4) Current Limiting - adjustable current limit protects against overcurrent conditions with foldback during faults; (5) Protection Logic - includes thermal shutdown, reverse current blocking, and undervoltage lockout.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>EN<\/td>Input<\/td>Enable input (active high)<\/td><\/tr>
      2<\/td>ILIM<\/td>Input<\/td>Current limit set resistor<\/td><\/tr>
      3<\/td>GND<\/td>Ground<\/td>Ground connection<\/td><\/tr>
      4-5<\/td>OUT<\/td>Output<\/td>Power switch output to USB port<\/td><\/tr>
      6-7<\/td>IN<\/td>Power<\/td>Input voltage supply<\/td><\/tr>
      8<\/td>D+<\/td>I\/O<\/td>USB D+ data line<\/td><\/tr>
      9<\/td>D-<\/td>I\/O<\/td>USB D- data line<\/td><\/tr>
      10<\/td>FAULT<\/td>Output<\/td>Fault status output (active low)<\/td><\/tr>
      11<\/td>STATUS<\/td>Output<\/td>Charging mode status output<\/td><\/tr>
      12-16<\/td>CTRL\/PGND\/NC<\/td>Mixed<\/td>Mode control, power ground, no connect<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive USB charging ports with multi-standard device compatibility<\/li>
      • In-vehicle infotainment USB power delivery<\/li>
      • Car charger adapters with BC1.2 and proprietary modes<\/li>
      • Automotive head unit and center console USB power<\/li>
      • Commercial vehicle USB charging station power<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Texas Instruments<\/td>TPS2549RTETQ1<\/td>WQFN-16<\/td>Automotive tape and reel<\/td><\/tr>
        Texas Instruments<\/td>TPS2546IRTERQ1<\/td>WQFN-16<\/td>Similar, different modes<\/td><\/tr>
        ON Semiconductor<\/td>NCP4328AMNTWG<\/td>DFN-10<\/td>USB charger controller<\/td><\/tr>
        Microchip<\/td>UCS2112T-2<\/td>QFN-16<\/td>2-port USB power switch<\/td><\/tr>
        Maxim Integrated<\/td>MAX14630ETAT+<\/td>TDFN-14<\/td>USB charger detector<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3697","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=3697"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3697\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=3697"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=3697"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=3697"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=3697"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}