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NXP Semiconductors PTN36043BBXY
- Part No.:
- PTN36043BBXY
- Manufacturer:
- NXP Semiconductors
- Category:
- Signal Buffers, Repeaters, Splitters
- Package:
- 18-XFQFN Exposed Pad
- Datasheet:
-
PTN36043BBXY.pdf
- Description:
- PTN36043BBXY
- Quantity:
- Payment:
- Shipping:
Inventory:9,900
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Product details
Overview
PTN36043BBXY from NXP Semiconductors is a USB Type-C SuperSpeed active 2:1 multiplexer/demultiplexer switch with integrated USB 3.1 Gen 1 redriver, supporting bidirectional differential signaling at 5 Gbps. It features dual-channel signal conditioning (receive equalization and transmit de-emphasis), 1.8 V operation, and ultra-low power consumption (113 mA typical active, 0.75 mA in U2/U3). It enables flexible port expansion in compact mobile and docking applications.
For engineers reviewing the PTN36043BBXY datasheet, PTN36043BBXY pinout, PTN36043BBXY application, or PTN36043BBXY equivalent, this device delivers verified USB 3.1 Gen 1 compliance, flow-through DHX2QFN18 pinout for minimal crosstalk, configurable channel-specific EQ/DE/OS settings, and automatic receiver termination detection - all critical for high-fidelity USB Type-C signal integrity in space-constrained designs.
Technical Context
The PTN36043BBXY implements a 2-to-1 active analog switch architecture with independent redriver blocks per channel: one for the application processor (AP) side (RX_AP±/TX_AP±) and one for the connector side (RX_CON_1±/TX_CON_1± and RX_CON_2±/TX_CON_2±). Each redriver supports ternary-configurable receive equalization (0–6 dB), transmit de-emphasis (−5.3 to 0 dB), and output swing (900–1100 mVp-p).
Its SEL pin controls port selection between two USB Type-C receptacles without host software intervention, while built-in power management dynamically enters U2/U3-compatible low-power states (0.75 mA) or no-connection standby (0.45 mA) based on link electrical conditions - all with <7 ms port reconfiguration time and <0.5 ns differential propagation delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 5 Gbps USB 3.1 Gen 1 (SuperSpeed only); ensures full backward compatibility with USB 3.0 systems. |
| Supply Voltage | 1.8 V ±0.1 V; enables direct integration with modern AP I/O rails and eliminates level-shifting overhead. |
| Active Current | 113 mA typical at 1.8 V; supports sustained high-speed switching without thermal throttling in thin-profile devices. |
| U2/U3 Current | 0.75 mA typical; meets USB link power-state requirements without firmware coordination. |
| Differential Return Loss | 14 dB (differential), 15 dB (common-mode) from 10 MHz to 1250 MHz; maintains signal integrity across full USB 3.1 bandwidth. |
| Propagation Delay | 0.5 ns max differential; preserves timing margins in high-speed serial links with tight skew budgets. |
| ESD Protection | 7000 V HBM, 1000 V CDM; withstands handling and system-level ESD events in consumer electronics environments. |
Pinout & Package
DHX2QFN18 package: 2.4 mm × 2.0 mm × 0.35 mm body, 0.4 mm pitch, exposed center pad for thermal and electrical grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RX_AP+/RX_AP− | Output (AP-side RX) | Differential USB 3.1 Gen 1 receive signals routed from internal redriver to application processor. |
| TX_AP+/TX_AP− | Input (AP-side TX) | Differential USB 3.1 Gen 1 transmit signals sourced from application processor to internal redriver. |
| RX_CON_1+/RX_CON_1− | Input (Port 1 RX) | Differential USB 3.1 Gen 1 receive signals from Connector Port 1; placed in high-Z when SEL = 0. |
| TX_CON_1+/TX_CON_1− | Output (Port 1 TX) | Differential USB 3.1 Gen 1 transmit signals to Connector Port 1; placed in high-Z when SEL = 0. |
| RX_CON_2+/RX_CON_2− | Input (Port 2 RX) | Differential USB 3.1 Gen 1 receive signals from Connector Port 2; placed in high-Z when SEL = 1. |
| TX_CON_2+/TX_CON_2− | Output (Port 2 TX) | Differential USB 3.1 Gen 1 transmit signals to Connector Port 2; placed in high-Z when SEL = 1. |
| SEL | Input (Port Select) | Binary control: SEL = 0 routes AP ↔ Port 2; SEL = 1 routes AP ↔ Port 1; OPEN interpreted as LOW. |
| CH1_SET1/CH1_SET2 | Ternary Input (AP-side EQ/DE/OS) | Configures receive equalization, transmit de-emphasis, and output swing for AP-side redriver (3-bit encoding). |
| CH2_SET1/CH2_SET2 | Ternary Input (Connector-side EQ/DE/OS) | Configures receive equalization, transmit de-emphasis, and output swing for connector-side redriver (3-bit encoding). |
| VDD1V8 | Power | 1.8 V supply input; must be decoupled locally to support fast transient current demands of redriver blocks. |
| GND | Power | Ground reference and thermal relief via exposed center pad; requires solid connection to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| USB 3.1 Gen 1 Redriver Integration | Per-channel receive equalization (0–6 dB) and transmit de-emphasis (−5.3 to 0 dB) compensate for PCB trace loss and connector insertion loss. |
| Flow-Through Pinout | Signal path alignment matches USB Type-C connector pin assignments, minimizing trace length asymmetry and differential skew. |
| Automatic Receiver Termination Detection | Hardware-based detection eliminates need for external resistors or host polling, reducing BOM count and firmware complexity. |
| Dynamic Power Management | U2/U3-aware state transitions occur autonomously based on link electrical idle detection - no USB protocol stack involvement required. |
| Ternary Control Logic | CHx_SETx pins accept HIGH/LOW/OPEN states, enabling configuration flexibility without additional GPIOs or pull resistors beyond standard use cases. |
Applications
| Smartphone USB-C Docking | Tablet Dual-Port Expansion |
|---|---|
Use Scenario: A smartphone uses a single USB-C port to simultaneously connect to a display and storage peripheral via a compact passive dock. IC Role / Device Role / Timing Role: PTN36043BBXY acts as a 2:1 active switch, routing SuperSpeed lanes between the phone's AP and either dock port while maintaining signal integrity through redriving. Use Value: Enables dual-peripheral connectivity without sacrificing 5 Gbps bandwidth or requiring host-side USB enumeration changes. |
Use Scenario: A tablet integrates two USB-C receptacles but shares one internal USB 3.1 Gen 1 controller, requiring dynamic port selection. IC Role / Device Role / Timing Role: PTN36043BBXY serves as a hardware-multiplexed interface, allowing either port to become the active SuperSpeed uplink based on physical cable insertion. Use Value: Eliminates need for dual USB PHYs, reducing silicon area and power while preserving full Gen 1 performance on the selected port. |
| Notebook USB-C Hub Controller | Mobile Docking Station Signal Integrity |
Use Scenario: A portable USB-C hub aggregates video (DisplayPort Alt Mode) and data (USB 3.1 Gen 1) over one upstream connection. IC Role / Device Role / Timing Role: PTN36043BBXY isolates and conditions the USB 3.1 Gen 1 differential pairs before they enter the hub's USB switch fabric. Use Value: Compensates for signal degradation across long flex cables and multiple connectors, ensuring robust link training and error-free operation. |
Use Scenario: A slim docking station routes USB 3.1 Gen 1 signals from laptop to peripherals while maintaining strict EMI and return-loss specs. IC Role / Device Role / Timing Role: PTN36043BBXY functions as a redriver-multiplexer, enhancing signal fidelity and enabling seamless port switching during hot-plug events. Use Value: Delivers 14 dB differential return loss up to 1250 MHz, meeting USB-IF compliance requirements for certified docking solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 3.1 Gen 1 active switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TUSB1002A | Single-channel USB 3.1 Gen 1 redriver with integrated mux; no dual-port 2:1 switching capability; requires external logic for port selection. | Suitable for single-upstream applications where only one downstream port is active at a time; lacks native 2:1 demux functionality. | Select when system design uses discrete control logic and prioritizes TI's ecosystem support over integrated SEL-driven switching. |
| Diodes AP1511 | 2:1 USB 3.0 switch without integrated redriver; relies on host/PHY for signal conditioning; higher insertion loss above 1 GHz. | Applicable in short-PCB-run designs with minimal interconnect loss; cannot compensate for >6 dB channel loss like PTN36043BBXY. | Choose for cost-sensitive, low-loss board layouts where redriver functionality is redundant or handled elsewhere in the signal chain. |
Compared with TUSB1002A and AP1511, PTN36043BBXY uniquely combines 2:1 hardware-multiplexing, per-channel redriver configurability, and autonomous U2/U3 power management - delivering plug-and-play USB Type-C port expansion with no firmware dependency or external components.
Availability
PTN36043BBXY is available at Aetrix Electronics and suitable for smartphone docking, tablet port expansion, notebook USB-C hubs, and mobile docking stations requiring stable component supply, consistent USB-IF compliance, and long-term industrial availability.
Supply support for PTN36043BBXY includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and consumer applications, with deep expertise in USB, MIPI, and high-speed interface IP.
The PTN36043BBXY belongs to NXP's USB Type-C signal integrity product line, engineered specifically to solve PCB layout and cable-loss challenges in ultra-thin mobile and docking platforms using USB 3.1 Gen 1.
FAQ
What is the primary function of the PTN36043BBXY in a USB Type-C system?
The PTN36043BBXY serves as a 2:1 active multiplexer/demultiplexer with integrated USB 3.1 Gen 1 redriver, enabling dynamic routing of SuperSpeed differential lanes between an application processor and either of two USB-C ports while enhancing signal integrity through receive equalization and transmit de-emphasis. Its SEL pin provides hardware-controlled port selection without host intervention, making it ideal for compact docking and dual-port mobile designs where PTN36043BBXY replaces discrete switches and external redrivers.
How does the PTN36043BBXY manage power during USB link low-power states?
The PTN36043BBXY autonomously detects USB 3.1 Gen 1 U2/U3 electrical idle conditions and transitions into a low-power state drawing just 0.75 mA typical - without requiring USB protocol decoding or host software commands. It also enters a 0.45 mA no-connection standby mode when no valid link is detected. This behavior is implemented entirely in hardware, ensuring PTN36043BBXY conserves power while maintaining readiness for immediate link reactivation.
Can the PTN36043BBXY support both USB-C receptacles simultaneously?
No - the PTN36043BBXY is a 2:1 switch, meaning only one of the two downstream USB-C ports (Port 1 or Port 2) can be actively connected to the application processor at any time, controlled by the SEL pin. While both ports share the same IC, simultaneous SuperSpeed operation is not supported; the inactive port's differential pairs are placed in high-impedance state. This architecture ensures signal isolation and prevents crosstalk, which is essential for PTN36043BBXY's role in maintaining USB-IF-compliant signal integrity.
What package type and thermal characteristics does the PTN36043BBXY use?
The PTN36043BBXY is housed in a DHX2QFN18 package (SOT1442-1): 2.4 mm × 2.0 mm × 0.35 mm body with 0.4 mm pitch and an exposed center pad for thermal dissipation. Its junction-to-ambient thermal resistance is 96 °C/W under JEDEC still-air conditions, and junction-to-case-top (Ψjt) is 1.0 °C/W - enabling reliable operation at full load in thermally constrained mobile enclosures where PTN36043BBXY's 203 mW typical active power minimizes localized heating.
How are the CH1_SET1/CH1_SET2 and CH2_SET1/CH2_SET2 pins configured?
These are ternary-input control pins that accept HIGH (connected to VDD1V8), LOW (connected to GND), or OPEN (floating) states to configure receive equalization, transmit de-emphasis, and output swing per channel. For example, CH1_SET1 = LOW and CH1_SET2 = OPEN sets AP-side de-emphasis to −3.9 dB, output swing to 1100 mVp-p, and equalization to 3.0 dB. The PTN36043BBXY interprets OPEN via internal 50 kΩ pull-up/pull-down networks, eliminating need for external biasing in most configurations.
PTN36043BBXY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 18-XFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Buffer, ReDriver
- Applications:
- USB Type C
- Input:
- Differential
- Output:
- Differential
- Data Rate (Max):
- -
- Number of Channels:
- 2
- Delay Time:
- 500ps (Max)
- Signal Conditioning:
- Input Equalization, Output De-Emphasis
- Capacitance - Input:
- -
- Voltage - Supply:
- 1.7V ~ 1.9V
- Current - Supply:
- 113mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 18-X2QFN (2.4x2)
PTN36043BBXY FAQ
1.How can I place an order for PTN36043BBXY through Aetrix?
Please submit a Request for Quotation (RFQ) for PTN36043BBXY on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PTN36043BBXY reliable?
The price and inventory of PTN36043BBXY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTN36043BBXY is usually 5 days.
3.What payment methods are accepted for PTN36043BBXY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTN36043BBXY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTN36043BBXY?
PTN36043BBXY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTN36043BBXY order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PTN36043BBXY?
For technical support, including PTN36043BBXY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTN36043BBXY requirements.
6.How does Aetrix verify that PTN36043BBXY is sourced from the original manufacturer or authorized distributors?
All PTN36043BBXY products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PTN36043BBXY meets industry standards.
7.What is the process for return or replacement of PTN36043BBXY?
All PTN36043BBXY units undergo pre-shipment inspection (PSI). If there is an issue with PTN36043BBXY, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PTN36043BBXY part is unused and in its original packaging.
Return procedure for PTN36043BBXY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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