NXP Semiconductors PTN5100DABSMP

Overview

PTN5100DABSMP from NXP Semiconductors is a single-port USB Type-C Power Delivery PHY and Protocol IC that implements the physical layer (BMC/4B5B/CRC) and protocol layer (packet assembly/disassembly, retries, resets) functions for USB PD 2.0 and Type-C 1.2 compliance. It operates as a dedicated companion to an external Policy Engine MCU, supports UFP role by default, delivers up to 30 mA V_MCUPWR output, and interfaces via factory-configured SPI or I2C. It enables robust dead-battery operation in portable docking stations.

For engineers reviewing the PTN5100DABSMP datasheet, PTN5100DABSMP pinout, PTN5100DABSMP application, or PTN5100DABSMP equivalent, this page provides verified pin functions, real-world USB PD system integration context, confirmed operating conditions (−20 °C to +85 °C), and validated alternative options for UFP-focused Type-C PD implementations.

Technical Context

The PTN5100DABSMP integrates a full USB PD PHY with BMC encoding/decoding, 4B5B symbol conversion, CRC generation/checking, and hardware-accelerated packet framing-including SOP/GoodCRC/Hard Reset handling-while offloading policy decisions to an external MCU. Its CC block implements Rd pull-down for UFP dead-battery detection and orientation sensing via CC_ORIENT.

It features three open-drain FET enable outputs (EN_USBSRC, EN_USBFET1, EN_USBFET2) with ≤10 μs enable/disable latency, dual power domains (VDD core, VIO IO), and flexible supply operation from either 3.3 V VDD or up to 25 V VBUS-enabling direct VBUS-powered operation in battery-dead scenarios without external LDOs.

Key Specifications

Pinout & Package

HVQFN20 package (4 mm × 4 mm, 0.5 mm pitch, 0.85 mm max height); exposed thermal pad must be soldered to PCB ground plane with thermal vias for electrical stability and thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB Type-C PD PHY applications.

Compared with STUSB4500 and TUSB422, PTN5100DABSMP provides optimal balance of UFP-optimized hardware acceleration, dead-battery resilience, and minimal MCU firmware overhead-making it ideal for portable accessories where reliability and low-power standby matter most.

Availability

PTN5100DABSMP is available at Aetrix Electronics and suitable for portable docking stations, USB-C to legacy adapters, mobile monitors, external storage enclosures, and dongles requiring stable component supply and full USB PD 2.0 compliance.

Supply support for PTN5100DABSMP 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, NFC, and secure authentication technologies.

The PTN5100DABSMP belongs to NXP's USB Type-C Power Delivery PHY product line, engineered specifically to simplify USB-C implementation in resource-constrained portable accessories by offloading timing-critical PD functions from the main MCU.

FAQ

What USB specifications does the PTN5100DABSMP support?

The PTN5100DABSMP supports USB Power Delivery specification revision 2.0 and USB Type-C Cable and Connector specification revision 1.2. It implements the full physical layer-including BMC encoding/decoding, 4B5B symbol conversion, and CRC generation/checking-as well as protocol layer functions such as SOP packet framing, GoodCRC responses, automated retries, and Hard/Cable reset handling. These capabilities are verified per official NXP documentation and USB-IF test plans.

Can PTN5100DABSMP operate without an external MCU?

No, PTN5100DABSMP requires an external Policy Engine MCU to implement full USB PD functionality. It handles only the PHY and hardware-accelerated protocol layers (e.g., packet assembly, BMC timing), while the MCU manages policy decisions, power contract negotiation, alternate mode control, and VDM exchanges. The PTN5100DABSMP communicates with the MCU via SPI or I2C, and its registers must be initialized post-power-on for proper CC_ORIENT and FET control behavior.

How does PTN5100DABSMP support dead-battery operation?

PTN5100DABSMP supports dead-battery operation by drawing power directly from VBUS (3.7–25 V) instead of relying on VDD. In this mode, it powers its internal circuitry and delivers up to 30 mA on V_MCUPWR to boot the external MCU. Its CC block implements Rd pull-down behavior on CC1/CC2 to ensure proper enumeration even when the host platform has zero battery voltage-enabling wake-up and charging initiation immediately upon cable connection.

What is the function of the CC_ORIENT pin on PTN5100DABSMP?

The CC_ORIENT pin on PTN5100DABSMP is a CMOS output that indicates USB-C cable plug orientation: LOW signifies normal orientation (CC1 active), and HIGH signifies reverse orientation (CC2 active). Its polarity is inverted at power-on reset, so the external MCU must initialize PTN5100DABSMP before reading valid orientation data. This signal enables the system to correctly route CC communication and configure alternate mode lanes based on physical cable insertion direction.

Does PTN5100DABSMP include integrated power FETs?

No, PTN5100DABSMP does not include integrated power FETs. It provides three open-drain, active-low gate control outputs-EN_USBSRC, EN_USBFET1, and EN_USBFET2-to drive external PMOS power FETs in the VBUS source and sink paths. Each output has ≤10 μs enable/disable latency and is designed to interface with standard logic-level PMOS devices, allowing system designers full flexibility in selecting FETs optimized for voltage, current, and thermal requirements.