TUSB501DRFR - 5Gbps USB 3.0 Redriver | Texas Instruments
MPN： TUSB501DRFR ✓ 啟用中TUSB501DRFR 概覽
A USB redriver is a signal-conditioning semiconductor placed within a high-speed data path to combat insertion loss, reflections, and intersymbol interference. In the hierarchy of electronic components, the TUSB501 is a USB interface IC, a redriver and repeater, and ultimately a high-speed signal-integrity device. Unlike a protocol controller or hub, it does not interpret USB traffic or create a new bus segment; it conditions an existing differential pair and passes the recovered 5 Gbps signal onward.
The TUSB501DRFR supports one USB 3.0 SuperSpeed channel at 5 Gbps and provides equalization for lossy channels. Its 3.3 V supply operation and 2 mm by 2 mm WSON (DRF) package support compact equipment designs. The specified operating-temperature range is -40°C to +85°C, making the device suitable for industrial and temperature-range-controlled consumer, communications, storage, and test-system implementations.
Technically, the redriver compensates attenuation encountered by the differential pair and regenerates the output signal at a high differential voltage. This helps the receiving endpoint detect transitions reliably when PCB traces, connectors, and cable segments introduce loss. The manufacturer describes TUSB501 as a third-generation 3.3 V single-channel redriver designed to extend possible channel length while recovering USB 3.0 SuperSpeed data.
Typical applications include host-to-device links, peripheral connections, storage controllers, docking systems, external test equipment, and active cable assemblies. The device is particularly useful when loss and intersymbol interference threaten link margin. In an active cable or extended PCB interconnect, placing the redriver near the degradation boundary can restore signal amplitude before the next connector or receiver.
Designers should preserve the differential impedance of the USB SuperSpeed pair, use symmetrical routing, minimize stubs and unnecessary vias, and place decoupling close to the supply pin. The device has limited built-in ESD protection, so system-level protection and connector placement remain important. Differential probing and eye-diagram measurements are recommended when validating a new channel.
This page combines the exact TUSB501DRFR ordering information with package, application, replacement, and design guidance. It distinguishes confirmed manufacturer characteristics from parameters that still require datasheet verification, helping engineers plan a 5 Gbps USB redriver design without relying on generic interface-IC assumptions.
直接替換替代品，適用於 TUSB501DRFR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
TUSB501TDRFRQ1
✅ 直接替換📋 參考替代品（不在目錄中）
TUSB501DRFR 規格
| Product Type | USB 3.0 single-channel redriver |
| Maximum Data Rate | 5 Gbps |
| Number of Channels | 1 channel |
| 供應電壓 | 3.3 V |
| Signal Conditioning | Input equalization and output de-emphasis |
| 介面 | USB 3.0 SuperSpeed |
| Input Equalization | Supported |
| Output De-emphasis | Supported |
| Propagation Delay | 290 ps |
| 封裝 | 8-pin WSON (DRF), 2 mm x 2 mm |
| 安裝類型 | Surface mount |
| 工作溫度範圍 | -40°C to +85°C |
| ESD Protection | Limited built-in ESD protection |
TUSB501DRFR 8-pin wson (drf), 2 mm x 2 mm 腳位配置指南
TUSB501DRFR（8-pin wson (drf), 2 mm x 2 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： TUSB501DRFR.
請參閱 資料表 以查看完整腳位配置。
典型應用
TUSB501DRFR 適用於 6 應用s: USB 3.0 Storage Link Conditioning, External Peripheral Interconnect, Host-to-Device Cable Extension, Industrial USB Data Acquisition, USB Test and Measurement Equipment, USB-C Dock and Receptacle Systems.
USB 3.0 Storage Link Conditioning
The TUSB501DRFR fits a 5 Gbps USB SuperSpeed path between a host controller and an external storage device when PCB traces, board-to-board connectors, or cable transitions reduce eye margin. Its single-channel equalization and output drive recover the differential signal before it reaches the storage endpoint. Place the redriver near the end of the lossiest channel segment, maintain a continuous impedance-controlled pair, and validate the recovered eye at the receiver with an oscilloscope or compliance mask.
推薦
External Peripheral Interconnect
The TUSB501DRFR can restore a USB 3.0 SuperSpeed differential pair on boards that connect a controller to an external peripheral through a dense connector or extended trace. At 5 Gbps, channel loss can create jitter and intersymbol interference even without a long external cable. The redriver applies equalization and regenerates a high-differential-voltage output, while de-emphasis helps control the transmitted signal. Confirm the exact equalization setting, impedance, and downstream eye margin during channel validation.
推薦
Host-to-Device Cable Extension
The TUSB501DRFR is appropriate for an active or extended USB 3.0 link where the redriver divides a lossy channel into separately managed sections. Installing the device before signal degradation exceeds receiver recovery capability can preserve a usable 5 Gbps eye. Its 3.3 V operation and compact 2 mm by 2 mm WSON package support space-constrained cable electronics, while the single SuperSpeed channel matches one differential pair. Validate both sections for reflection, insertion loss, and timing.
推薦
Industrial USB Data Acquisition
The TUSB501DRFR can condition a 5 Gbps USB SuperSpeed connection in industrial data-acquisition equipment where a host and controller board are separated by connectors, cable assemblies, or long routed pairs. Its stated -40°C to +85°C operating range covers many industrial environments, and equalization directly addresses channel loss. The design should still include external ESD protection near user-accessible connectors because the IC has limited built-in ESD protection and should not be treated as the system protection barrier.
推薦
USB Test and Measurement Equipment
The TUSB501DRFR is useful in USB 3.0 test fixtures and measurement systems where probe cables, adapters, and long fixture traces degrade the SuperSpeed eye before it reaches the instrument. Position the redriver at the fixture boundary so the instrument receives a regenerated differential signal. Use low-loss coaxial or controlled-impedance PCB paths, maintain symmetric differential routing, and compare eye diagrams before and after equalization. The compact 8-WSON package also leaves board area available for test and measurement circuitry.
推薦
USB-C Dock and Receptacle Systems
The TUSB501DRFR can support a USB 3.0 SuperSpeed lane within a compact dock or receptacle design when connector launches and board routing create a lossy channel. Its equalization, output drive, and de-emphasis help preserve the differential eye between the USB connector and the host controller. The 2 mm by 2 mm WSON package supports dense layouts, but the exposed thermal and electrical pad requirements must follow the manufacturer land pattern. Separate external ESD protection should be placed close to the accessible connector.
推薦
推薦產品摘要
工程參考資料，適用於 TUSB501DRFR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | TUSB501TDRFRQ1 |
|---|---|---|
| Product Type | USB 3.0 single-channel redriver | USB 3.0 single-channel redriver |
| Brand | Texas Instruments | Texas Instruments |
| Package | 8-WSON (DRF), 2 mm x 2 mm | 8-WSON (DRF), 2 mm x 2 mm |
| Maximum Data Rate | 5 Gbps | 5 Gbps |
| Number of Channels | 1 channel | 1 channel |
| Supply Voltage | 3.3 V | 3.3 V |
| Signal Conditioning | Input equalization and output de-emphasis | Input equalization and output de-emphasis |
| Propagation Delay | 290 ps | 290 ps |
| Automotive Ordering Option | No automotive designation | Yes |
主要差異化特點
- Single-channel 5 Gbps signal conditioning in a compact package (對比TUSB501TDRFRQ1)
- Standard-temperature ordering option (對比TUSB501TDRFRQ1)
- Integrated equalization and output signal conditioning (對比TUSB501TDRFRQ1)
設計說明
Route the USB SuperSpeed pair as a continuous, impedance-controlled differential pair with closely matched length, symmetric vias, and no unterminated stubs. Place the TUSB501DRFR where the incoming signal still has adequate eye margin and the outgoing channel begins. Avoid routing over plane splits, and use the manufacturer's recommended land pattern and exposed-pad connection before fabrication.
Determine the redriver location from channel simulation or measured insertion loss rather than from trace length alone. At 5 Gbps, connector launches, vias, and dielectric losses can contribute to intersymbol interference. Compare receiver eye diagrams with and without equalization, then verify that the configured preset produces margin at the downstream connector without creating excessive overshoot or jitter.
Do not rely on the TUSB501DRFR for primary connector ESD protection because its built-in protection is limited. Place appropriate external ESD protection near any user-accessible USB connector, and keep the redriver away from that protection's large transient-current path. Also avoid substituting a generic redriver based only on its 5 Gbps rating; verify package dimensions, pin assignments, equalization control, supply voltage, and propagation delay.
Place the supply decoupling capacitor close to the device's supply and ground connections, with a short and low-inductance return path. Follow the datasheet land pattern for the 2 mm by 2 mm WSON (DRF) package and provide adequate exposed-pad copper while observing its clearance requirements. Confirm the final soldering, thermal, and pad-connection details against the current manufacturer documentation.
合規資訊
The standard TUSB501DRFR is not identified as an automotive-qualified variant. Compliance status must be confirmed from the current manufacturer product or quality documentation.
