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Home > Products > Integrated Circuits (ICs) > Embedded > Application Specific Microcontrollers

Infineon Technologies CYPD4226-40LQXIT

Name: CYPD4226-40LQXIT
Brand: Infineon Technologies
SKU: CYPD4226-40LQXIT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CYPD4226-40LQXIT

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

Package:: 40-UFQFN Exposed Pad

Datasheet:: CYPD4226-40LQXIT.pdf

Description:: CCG4

Quantity:: RFQ Add To RFQ list

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Product details

Overview

CYPD4226-40LQXIT from Infineon is a dual-port USB Type-C and Power Delivery 3.0 port controller IC featuring a 48-MHz Arm® Cortex®-M0 CPU, 128 KB flash, 8 KB SRAM, two integrated BMC transceivers, and embedded VCONN FETs - deployed in notebook host ports and docking station upstream/downstream facing applications.

For engineers reviewing the CYPD4226-40LQXIT datasheet, CYPD4226-40LQXIT pinout, CYPD4226-40LQXIT application, or CYPD4226-40LQXIT equivalent, key selection criteria include dual-port PD 3.0 support, integrated RP/RD termination, ±8-kV CC-pin ESD rating, hot-swappable I/Os, and industrial temperature range (–40°C to +105°C).

Technical Context

The device implements two independent USB-PD Baseband PHY/MAC layers with integrated BMC encoding/decoding, supporting full PD 3.0 message exchange including Extended Data Messages and Fast Role Swap. Its dual transceivers each integrate programmable current sources for DFP (RP) and pull-down resistors for UFP (RD), plus dead-battery termination for DRP operation.

It uses an internal 48-MHz IMO (Integrated Main Oscillator), eliminating external clock components, and supports four reconfigurable Serial Communication Blocks (SCBs) - each switchable among I²C, SPI, or UART - enabling flexible system-side communication with PMICs, ECs, or sensors without additional interface ICs.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm® Cortex®-M0 @ 48 MHz - enables deterministic USB-PD protocol timing and firmware-upgradable policy engine.
Flash / SRAM	128 KB flash + 8 KB SRAM - sufficient for dual-port PD 3.0 stack, vendor-defined modes, and field firmware updates.
USB-PD Support	Full USB-PD 3.0 compliance (including EPR-ready signaling) - supports variable voltage negotiation up to 48 V with structured VDMs.
CC Pin ESD	±8 kV contact / ±15 kV air-gap (IEC61000-4-2 Level 4C) - ensures robust plug/unplug reliability in consumer and industrial docking environments.
Operating Temp	–40°C to +105°C - qualified for thermal cycling in enclosed power adapters and high-density docking stations.
Supply Range	2.7 V to 5.5 V main supply; GPIOs support 1.71 V to 5.5 V - allows direct interfacing with 1.8 V, 3.3 V, and 5 V system logic without level shifters.
Power Modes	Deep Sleep: 2.5 µA; Reset: 1.0 µA - enables always-on CC monitoring while preserving battery life in portable hosts.

Pinout & Package

Package: 6.0 mm × 6.0 mm, 0.6 mm pitch, 40-pin QFN (LQFP-compatible footprint with exposed thermal pad).

Pin/Terminal	Circuit Role	Design Meaning
CC1 / CC2	Configuration Channel I/O	Dual bidirectional BMC data lines with integrated termination (RP/RD) and ESD protection - directly connect to Type-C receptacle pins.
VCONN1 / VCONN2	VCONN Power Switch Output	Integrated 2× FETs per port - autonomously power EMCA cables without external MOSFETs or gate drivers.
VBUS1 / VBUS2	Port Power Sense Input	Analog inputs with 12-bit SAR ADC - monitor VBUS voltage for sink/source detection and overvoltage protection.
SCL0 / SDA0 SCL1 / SDA1	I²C Interface	Two independent I²C buses - enable concurrent communication with system EC and PD policy manager or sensor hub.
GPIO[0:27]	Programmable I/O	28 general-purpose pins with hot-swap capability on Port 0 I²C and CC lines - support status LEDs, reset coordination, and board-level control signals.

Key Features

Feature	Design Value
Dual USB-PD BMC Transceivers	Each port includes full PHY/MAC, BMC encoder/decoder, and analog front-end - eliminates need for discrete transceiver ICs or external line drivers.
Integrated VCONN FETs (2× per port)	On-chip 200-mΩ N-channel FETs with thermal shutdown - enable active cable power delivery without external discretes or layout complexity.
Hot-Swappable CC and I²C Pins	ESD-hardened input structures on CC1/CC2 and Port 0 SCL/SDA - prevent latch-up during live cable insertion and allow runtime firmware reconfiguration.
Four Reconfigurable SCBs	Each SCB dynamically switches between I²C/SPI/UART protocols via register write - reduces BOM count by consolidating serial interfaces for multiple subsystems.
Dead-Battery Termination	Internal 5.1-kΩ RD resistor activated when VDD < 2.7 V - ensures proper UFP detection even when host battery is fully depleted.

Applications

Notebook Host Port

USB-C Power Adapter

Use Scenario: Dual-role USB-C port on ultrabook chassis handling both charging-in and display-out functions.

IC Role / Device Role / Timing Role: Policy engine and physical layer controller managing PD contract negotiation, role swap, and VCONN sequencing.

Use Value: Enables single-chip implementation of DRP behavior with sub-100-ms fast role swap - critical for seamless laptop-to-dock transitions.

Use Scenario: Compact 65 W GaN-based adapter with dual USB-C outputs supporting PPS and variable voltage.

IC Role / Device Role / Timing Role: Primary PD controller coordinating AC-DC conversion feedback, output voltage regulation, and cable e-marker authentication.

Use Value: Integrated 48-MHz MCU and PD 3.0 stack reduce firmware development time versus discrete MCU + transceiver solutions.

Docking Station UFP

Docking Station DFP

Use Scenario: Downstream-facing port on Thunderbolt dock accepting video+power from laptop.

IC Role / Device Role / Timing Role: UFP endpoint detecting source capability, negotiating sink power, and enabling VCONN for active cables.

Use Value: Built-in ±8-kV CC ESD withstand prevents field failures during frequent cable plugging in office environments.

Use Scenario: Upstream-facing port delivering up to 100 W to connected laptop while supporting DisplayPort Alt Mode.

IC Role / Device Role / Timing Role: DFP controller managing source capability advertisement, VBUS ramp control, and structured VDM handshaking for DP tunneling.

Use Value: Dual SCBs allow simultaneous I²C comms with PD MCU and DP retimer - no arbitration delays in multi-protocol handshakes.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
CYPD4225-40LQXIT	Same die, 33-ball CSP package - lacks Fast Role Swap and Extended Data Messaging support.	Targeted at space-constrained adapters where dual-role flexibility is not required.	Select only if PCB area is critical and FR_Swap/VDM features are unused.
TPS65988DHAR	Texas Instruments part with integrated 3.3 V LDO, higher PD 3.1 EPR support, but no Arm M0 MCU - relies on external host processor.	Suitable for systems with existing application processor handling policy decisions.	Choose when offloading PD policy to host CPU is acceptable and EPR > 48 V is needed.

Compared with CYPD4225-40LQXIT, this 40-pin QFN variant delivers full PD 3.0 feature parity including Fast Role Swap and VCONN autonomy; versus TPS65988DHAR, it provides self-contained firmware execution and tighter real-time control over CC timing - advantageous in resource-constrained or standalone designs.

Availability

CYPD4226-40LQXIT is available at Aetrix Electronics and suitable for notebook host ports, USB-C power adapters, and docking stations requiring stable component supply, industrial temperature operation, and full USB-PD 3.0 compliance.

Supply support for CYPD4226-40LQXIT 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

Infineon Technologies is a German semiconductor leader specializing in power management, automotive MCUs, and connectivity solutions, with broad industrial and automotive qualification expertise.

This device belongs to the EZ-PD™ CCG4 product line - designed specifically for autonomous, dual-port USB Type-C and Power Delivery control in space- and power-constrained endpoints without external microcontrollers.

FAQ

Does CYPD4226-40LQXIT support USB PD 3.1 Extended Power Range (EPR)?

No. The device implements full USB PD 3.0 specification, including Fast Role Swap, Extended Data Messages, and Variable Voltage negotiation up to 20 V. While its BMC PHY can physically transmit EPR messages, the firmware stack and policy engine do not support EPR object parsing or 28 V/48 V VBUS control sequences defined in PD 3.1.

Can the integrated VCONN FETs drive full-specification active cables?

Yes. Each VCONN FET supports continuous 1-A output with thermal foldback, meeting USB-IF requirements for powering standard EMCA cables (up to 1 W). The FETs are internally current-limited and feature automatic fault recovery - no external current-sense resistors or protection ICs are required.

Is external flash memory required for firmware storage?

No. All firmware, configuration tables, and PD policy stacks execute from the on-chip 128 KB flash. The device includes a boot ROM with secure update handler and supports over-the-air (OTA) firmware updates via I²C or UART without external memory.

What debug interface does CYPD4226-40LQXIT provide?

It features a 2-wire Serial Wire Debug (SWD) interface compliant with ARM CoreSight standards. The SWD port supports full JTAG-style debugging, including breakpoints, watchpoints, memory inspection, and real-time trace - accessible through standard CMSIS-DAP debug probes without proprietary hardware.

CYPD4226-40LQXIT Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: EZ-PD™ CCG4

Package/Case:: 40-UFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Applications:: USB Type C

Core Processor:: ARM® Cortex®-M0

Program Memory Type:: FLASH (128kB)

Controller Series:: -

RAM Size:: 8K x 8

Interface:: I2C, SPI, UART/USART, USB

Number of I/O:: 14

Voltage - Supply:: 2.7V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 40-QFN (6x6)

CYPD4226-40LQXIT FAQ

1.How can I place an order for CYPD4226-40LQXIT through Aetrix?

Please submit a Request for Quotation (RFQ) for CYPD4226-40LQXIT 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 CYPD4226-40LQXIT reliable?

The price and inventory of CYPD4226-40LQXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYPD4226-40LQXIT is usually 5 days.

3.What payment methods are accepted for CYPD4226-40LQXIT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYPD4226-40LQXIT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CYPD4226-40LQXIT?

CYPD4226-40LQXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CYPD4226-40LQXIT 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 CYPD4226-40LQXIT?

For technical support, including CYPD4226-40LQXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYPD4226-40LQXIT requirements.

6.How does Aetrix verify that CYPD4226-40LQXIT is sourced from the original manufacturer or authorized distributors?

All CYPD4226-40LQXIT 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 CYPD4226-40LQXIT meets industry standards.

7.What is the process for return or replacement of CYPD4226-40LQXIT?

All CYPD4226-40LQXIT units undergo pre-shipment inspection (PSI). If there is an issue with CYPD4226-40LQXIT, 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 CYPD4226-40LQXIT part is unused and in its original packaging.

Return procedure for CYPD4226-40LQXIT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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