{"id":3559,"date":"2026-06-06T10:26:04","date_gmt":"2026-06-06T10:26:04","guid":{"rendered":"https:\/\/materialparts.com\/tps23880rtqr\/"},"modified":"2026-06-06T10:26:04","modified_gmt":"2026-06-06T10:26:04","slug":"tps23880rtqr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps23880rtqr\/","title":{"rendered":"TPS23880RTQR"},"content":{"rendered":"

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

The TPS23880RTQR from Texas Instruments is a quad-port IEEE 802.3bt Type 3\/4 Power over Ethernet (PoE) Powered Device (PD) controller. Supporting up to 90W per port (Type 4), it features autonomous or I2C-controlled operation, per-port classification, and advanced power management. The RTQR suffix denotes the 48-pin VQFN (7x7mm) package in tape-and-reel.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u7c7b\u578b<\/td>\nQuad-Port PoE PSE Controller<\/td>\n<\/tr>\n
Standard<\/td>\nIEEE 802.3bt (Type 3\/4)<\/td>\n<\/tr>\n
Ports<\/td>\n4 (independent)<\/td>\n<\/tr>\n
Max Power per Port<\/td>\n90W (Type 4, 4-pair)<\/td>\n<\/tr>\n
Classification<\/td>\n1-8 (autonomous)<\/td>\n<\/tr>\n
Interface<\/td>\nI2C for control and monitoring<\/td>\n<\/tr>\n
Detection<\/td>\nHardware autonomous detection<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n44V – 57V (VPWR)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nVQFN-48 (7 x 7 mm)<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to 125 C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Quad-port IEEE 802.3bt Type 3\/4 PSE controller<\/li>\n
  • Up to 90W per port with 4-pair power delivery<\/li>\n
  • Autonomous or I2C-controlled operating modes<\/li>\n
  • Per-port detection, classification, and power management<\/li>\n
  • Supports all IEEE 802.3af\/at\/bt PD classes<\/li>\n
  • Integrated 100V MOSFET drivers per port<\/li>\n
  • Per-port current monitoring and limiting<\/li>\n
  • 12-bit ADC for voltage and current reporting<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Enterprise PoE switches (24-48 port, 90W per port)<\/li>\n
    • Industrial Ethernet switches with PoE++<\/li>\n
    • Wireless access point power delivery<\/li>\n
    • Security camera and IoT device power injection<\/li>\n
    • Smart building lighting and sensor networks<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS23880RTQR from Texas Instruments is a quad-port IEEE 802.3bt Type 3\/4 Power over Ethernet (PoE) Powered Device (PD) controller. Supporting up to 90W per port (Type 4), it features autonomous or I2C-controlled operation, per-port classification, and advanced power management. The RTQR suffix denotes the 48-pin VQFN (7x7mm) package in tape-and-reel. Key Specifications […]<\/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":[13,20],"tags":[],"chip_brand":[138],"class_list":["post-3559","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"Quad-port PoE PSE controller, 802.3bt, 90W\/port, I2C, VQFN-48","date_code":"","package_case":"VQFN-48 (7.0 x 7.0 x 0.90 mm)","in_stock":14723,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps23880.pdf","price":"$8.50 @ 1ku","product_introduction":"The TPS23880RTQR from Texas Instruments is a quad-port Power Sourcing Equipment (PSE) controller compliant with IEEE 802.3bt Type 3 and Type 4 PoE standards. Supporting up to 90W per port with 4-pair power delivery, it enables the next generation of high-power PoE applications including 802.11ax access points, pan-tilt-zoom cameras, and smart building LED lighting. The device operates autonomously for detection, classification, and power management, or can be fully controlled via I2C. Integrated 100V MOSFET drivers, per-port current limiting, and a 12-bit ADC for voltage and current monitoring provide comprehensive power management in a compact 48-pin VQFN package.","working_principle":"The TPS23880RTQR manages four independent PoE ports through autonomous or I2C-controlled modes. In autonomous mode, the detection circuit applies a 2.7V-10.1V signature voltage and measures the PD signature impedance (24.9 kOhm) to detect a valid PD. Classification applies a classification voltage (15.5V-20.5V) and measures the PD class current to determine the power allocation. For 4-pair Type 3\/4, both pairs are powered simultaneously with independent detection and classification. The integrated 100V gate drivers control external N-channel MOSFETs that switch the VPWR supply to each port. Current sensing uses external sense resistors with an internal amplifier, reported through the 12-bit ADC via I2C. Per-port disconnect detection monitors the maintain power signature (MPS).","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      VPWR<\/td>4<\/td>Power<\/td>48V PoE supply input<\/td><\/tr>
      GND<\/td>4<\/td>Ground<\/td>Ground<\/td><\/tr>
      OUT1-4<\/td>8<\/td>Power<\/td>Port output gate drives (2 per port)<\/td><\/tr>
      SENSE1-4<\/td>4<\/td>Input<\/td>Port current sense inputs<\/td><\/tr>
      DET1-4<\/td>4<\/td>I\/O<\/td>Port detection\/classification<\/td><\/tr>
      SDA\/SCL<\/td>2<\/td>I\/O<\/td>I2C interface<\/td><\/tr>
      INT<\/td>1<\/td>Output<\/td>Interrupt output<\/td><\/tr>
      A0\/A1<\/td>2<\/td>Input<\/td>I2C address select<\/td><\/tr>
      PG<\/td>1<\/td>Output<\/td>Power good<\/td><\/tr>
      MISC<\/td>13<\/td>-<\/td>Connect, RT, NC pins<\/td><\/tr><\/table>","application_scenarios":"
      • Enterprise switches: 802.3bt Type 4 PoE++ 90W per port for Wi-Fi 6 APs<\/li>
      • Industrial PoE: High-power injection for PTZ cameras and industrial sensors<\/li>
      • Smart building: PoE-powered LED lighting controllers and HVAC actuators<\/li>
      • Campus networks: 4-pair PoE for digital signage and thin clients<\/li>
      • Telecom: PoE distribution in fiber-to-the-office deployments<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TPS23882IRTQR<\/td>VQFN-48<\/td>8-port version, same architecture<\/td><\/tr>
        Microchip<\/td>PD69208ILQ-TR<\/td>LQFP-64<\/td>8-port, 802.3bt PSE controller<\/td><\/tr>
        AKM<\/td>AK4118A<\/td>QFN-48<\/td>4-port 802.3bt PSE<\/td><\/tr>
        NXP<\/td>SA56004ED<\/td>TSSOP-16<\/td>PoE controller companion, not full PSE<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3559","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=3559"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3559\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=3559"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=3559"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=3559"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=3559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}