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

Infineon Technologies CYPD4236-40LQXQT

Name: CYPD4236-40LQXQT
Brand: Infineon Technologies
SKU: CYPD4236-40LQXQT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CYPD4236-40LQXQT

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

Package:: 40-UFQFN Exposed Pad

Datasheet:: CYPD4236-40LQXQT.pdf

Description:: CCG4

Quantity:: RFQ Add To RFQ list

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Inventory:2,496

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Product details

Overview

CYPD4236-40LQXQT from Infineon is a dual-port USB Type-C and Power Delivery 3.0 port controller featuring a 48-MHz Arm® Cortex®-M0 CPU, 128 KB flash, two integrated BMC transceivers, ±8-kV CC-pin ESD protection, and integrated VCONN FETs - deployed in notebook host ports, USB-C power adapters, and docking stations for full PD role negotiation and cable management.

For engineers reviewing the CYPD4236-40LQXQT datasheet, CYPD4236-40LQXQT pinout, CYPD4236-40LQXQT application, or CYPD4236-40LQXQT equivalent, this device delivers verified dual-port PD 3.0 control with fast role swap, dead-battery termination, and industrial-grade thermal operation (–40°C to +105°C) in a 40-pin QFN package.

Technical Context

The CYPD4236-40LQXQT implements two independent USB-PD Baseband PHY/MAC subsystems with integrated RP/RD termination and BMC encoding/decoding logic, enabling simultaneous source/sink negotiation on both ports. Its Cortex-M0 core executes PD protocol stack firmware with deterministic timing via four TCPWM blocks and four reconfigurable SCBs supporting I²C/SPI/UART.

It integrates dual VCONN FETs per port (four total), internal IMO eliminating external crystal dependency, and system-level ESD protection on CC pins meeting IEC61000-4-2 Level 4C - all operating from a single 2.7–5.5 V supply with GPIOs supporting 1.71–5.5 V signaling.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm® Cortex®-M0 @ 48 MHz - enables real-time PD state machine execution with SWD debug support
Flash / SRAM	128 KB flash + 8 KB SRAM - sufficient for dual-port PD 3.0 stack, policy engine, and custom OEM configuration
USB-PD Support	Full USB-PD 3.0 compliance - supports extended messaging, fast role swap, and programmable PDOs
CC Pin ESD	±8 kV contact / ±15 kV air-gap - meets IEC61000-4-2 Level 4C without external TVS diodes
Package	40-pin QFN (6.0 × 6.0 mm, 0.6 mm pitch) - exposes all CC, SBU, VCONN, and GPIO signals for dual-port routing
Operating Temp	–40°C to +105°C - qualified for industrial and mobile adapter thermal environments
Power Supply	2.7 V to 5.5 V main rail; GPIO I/O voltage independently configurable 1.71–5.5 V - simplifies level-shifting in mixed-voltage systems

Pinout & Package

Package: 40-pin QFN (6.0 mm × 6.0 mm, 0.6 mm pitch), exposed thermal pad, RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
CC1 / CC2	Configuration Channel (Port 1)	Dual-role detection, VCONN enable, and BMC communication for Port 1
CC3 / CC4	Configuration Channel (Port 2)	Dual-role detection, VCONN enable, and BMC communication for Port 2
VCONN1 / VCONN2	VCONN Power Switch Outputs	Integrated 200-mA FETs per port to power EMCA cables directly
SBU1 / SBU2 / SBU3 / SBU4	Sideband Use Pins	Support alternate mode signaling (e.g., DisplayPort, Thunderbolt) on both ports
GPIO[0:27]	Configurable I/O Bank	28 pins with hot-swap capability; support I²C/SPI/UART via SCBs or timer/PWM functions

Key Features

Feature	Design Value
Dual USB-PD BMC Transceivers	Two fully independent physical layers with integrated RP/RD resistors and current sources - eliminates 4 external resistors and 2 current-source ICs
Integrated VCONN FETs	Four 200-mA low-RDS(on) FETs (two per port) - enables direct EMCA cable power without external MOSFETs or drivers
Dead-Battery Termination	On-chip RD pull-down active at VDD < 2.7 V - ensures reliable UFP detection even when system is unpowered
Hot-Swappable I/Os	CC and Port 0 I²C pins rated for live insertion - prevents latch-up during cable plug/unplug events
Industrial Temp Range	–40°C to +105°C operation - validated across full range for adapter and docking station thermal profiles

Applications

Notebook Host Port

USB-C Power Adapter

Use Scenario: Dual USB-C port implementation on ultrabook chassis with DRP capability and display alt-mode support.

IC Role / Device Role / Timing Role: Primary PD policy engine and CC channel manager - handles sink/source negotiation, VCONN switching, and fast role swap within 20 ms.

Use Value: Reduces BOM by integrating dual transceivers, VCONN FETs, and dead-battery termination - eliminates 11 discrete components vs. discrete solution.

Use Scenario: 65W GaN-based USB-C PD adapter with dual output capability and programmable voltage/current profiles.

IC Role / Device Role / Timing Role: DFP controller managing PDO negotiation, cable detection, and fault-safe VBUS discharge sequencing.

Use Value: Enables certified PD 3.0 compliance with extended messaging for firmware updates and manufacturer-specific telemetry over BMC.

Docking Station Hub

Multi-Port Monitor with USB-C Uplink

Use Scenario: 10Gbps Thunderbolt 3/4 dock with dual downstream USB-C ports, HDMI/DP outputs, and Ethernet.

IC Role / Device Role / Timing Role: Dual-role port controller coordinating PD contract arbitration between upstream host and downstream peripherals.

Use Value: Supports simultaneous PD contracts on both ports with independent VCONN control - enables active cable support across all connected devices.

Use Scenario: 4K monitor with USB-C uplink providing video, power delivery, and USB 3.2 data to laptop.

IC Role / Device Role / Timing Role: UFP+DFP hybrid controller managing sink behavior for monitor power draw and source behavior for upstream data hub.

Use Value: Integrates SBU switch control and DP alt-mode handshaking logic - removes need for separate level translators and mode-detection ICs.

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
CYPD4226-40LQXIT	Same die, 33-ball CSP package - smaller footprint but no exposed thermal pad; lower thermal dissipation	Limited to space-constrained adapters without high-power thermal cycling	Select only when board area < 6 mm² is critical and peak power < 30 W
TPS65988DHAR	Texas Instruments part with integrated buck-boost converter; no MCU subsystem - relies on external host processor	Requires companion MCU for full PD 3.0 stack; not self-contained	Choose only if system already includes capable host processor and needs integrated power conversion

Compared with CYPD4226-40LQXIT, the CYPD4236-40LQXQT offers superior thermal performance and debug accessibility in QFN; versus TPS65988DHAR, it provides autonomous PD control without host dependency - critical for cost-sensitive, standalone adapter designs.

Availability

CYPD4236-40LQXQT is available at Aetrix Electronics and suitable for notebook host ports, USB-C power adapters, and docking stations requiring stable component supply, long-term lifecycle support, and full USB-PD 3.0 certification readiness.

Supply support for CYPD4236-40LQXQT 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 >50 years of analog and mixed-signal design heritage.

The EZ-PD™ CCG4 product line targets USB-C infrastructure applications - delivering fully integrated, firmware-programmable port controllers that replace multi-chip discrete PD implementations in adapters, docks, and host systems.

FAQ

Does CYPD4236-40LQXQT support USB Power Delivery 3.0 Extended Messages?

Yes, the CYPD4236-40LQXQT fully supports USB PD 3.0 Extended Message Protocol including Vendor Defined Messages (VDMs), Status, Alert, Battery Status, and Firmware Update commands. This capability is implemented in hardware BMC transceivers and executed by the on-chip Cortex-M0 firmware stack - no external processor required.

What is the maximum continuous current rating for the integrated VCONN FETs?

The integrated VCONN FETs on CYPD4236-40LQXQT are rated for 200 mA continuous current per channel (VCONN1/VCONN2), with thermal derating above 70°C ambient. Each FET has R_DS(on) ≤ 0.5 Ω at V_GS = 4.5 V, enabling direct EMCA cable power without external boost circuitry.

Can CYPD4236-40LQXQT operate without an external crystal?

Yes - the device integrates a factory-trimmed internal main oscillator (IMO) running at 48 MHz with ±2% accuracy across temperature and voltage, eliminating need for external crystal or clock source. An optional external 24–48 MHz crystal may be used for tighter timing tolerance in precision applications.

Is the 40-pin QFN package lead-free and RoHS-compliant?

Yes, the CYPD4236-40LQXQT in 40-pin QFN packaging is fully RoHS-compliant and lead-free per EU Directive 2011/65/EU, with matte tin (Sn) finish on all leads and JEDEC-standard moisture sensitivity level (MSL) 3 rating at 260°C reflow peak.

CYPD4236-40LQXQT 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:: 25

Voltage - Supply:: 2.7V ~ 5.5V

Operating Temperature:: -40°C ~ 105°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

CYPD4236-40LQXQT FAQ

1.How can I place an order for CYPD4236-40LQXQT through Aetrix?

Please submit a Request for Quotation (RFQ) for CYPD4236-40LQXQT 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 CYPD4236-40LQXQT reliable?

The price and inventory of CYPD4236-40LQXQT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYPD4236-40LQXQT is usually 5 days.

3.What payment methods are accepted for CYPD4236-40LQXQT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYPD4236-40LQXQT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CYPD4236-40LQXQT?

CYPD4236-40LQXQT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CYPD4236-40LQXQT 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 CYPD4236-40LQXQT?

For technical support, including CYPD4236-40LQXQT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYPD4236-40LQXQT requirements.

6.How does Aetrix verify that CYPD4236-40LQXQT is sourced from the original manufacturer or authorized distributors?

All CYPD4236-40LQXQT 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 CYPD4236-40LQXQT meets industry standards.

7.What is the process for return or replacement of CYPD4236-40LQXQT?

All CYPD4236-40LQXQT units undergo pre-shipment inspection (PSI). If there is an issue with CYPD4236-40LQXQT, 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 CYPD4236-40LQXQT part is unused and in its original packaging.

Return procedure for CYPD4236-40LQXQT:

1.Submit a request within 90 days.

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

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