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Infineon Technologies CYPD4125-40LQXIT
- Part No.:
- CYPD4125-40LQXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- -
- Datasheet:
-
CYPD4125-40LQXIT.pdf
- Description:
- IC MCD CCG4 WIRED 40-QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,499
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Product details
Overview
CYPD4125-40LQXIT 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, two integrated BMC transceivers, ±8-kV CC-pin ESD protection, and support for fast role swap - deployed in notebook host controllers, USB-C power adapters, and docking stations.
For engineers reviewing the CYPD4125-40LQXIT datasheet, CYPD4125-40LQXIT pinout, CYPD4125-40LQXIT application, or CYPD4125-40LQXIT equivalent, key selection criteria include dual-port PD 3.0 compliance, integrated VCONN FETs, dead-battery termination, hot-swappable CC pins, and industrial temperature range (–40°C to +105°C).
Technical Context
The device implements two independent USB-PD 3.0 baseband PHY/MAC subsystems with integrated RP/RD termination, BMC encoding/decoding, and hardware-assisted PD message parsing. Its Cortex-M0 core executes firmware-defined policy engine logic while offloading protocol timing-critical tasks (e.g., BMC symbol timing, SOP' detection) to dedicated digital blocks.
It supports full DRP operation per port with automatic dead-battery detection, integrated 2× VCONN FETs (100-mΩ RDS(on)), and hardware-accelerated Fast Role Swap (FRS) signaling - enabling sub-100-ms power role reversal without MCU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0 @ 48 MHz - enables real-time PD policy engine execution with <10 µs interrupt latency for CC event handling. |
| Flash Memory | 128 KB - stores dual-port PD stack, vendor-defined descriptors, and field-upgradable firmware without external storage. |
| USB-PD Support | PD 3.0 compliant (including Extended Messages) - supports programmable PDOs, battery charging, and vendor-defined messages. |
| ESD Protection | ±8 kV contact / ±15 kV air-gap on CC pins - meets IEC61000-4-2 Level 4C, eliminating need for external TVS diodes. |
| Operating Temp | –40°C to +105°C - qualified for industrial-grade power adapter and docking station thermal environments. |
| Supply Range | 2.7 V to 5.5 V - compatible with 3.3 V and 5 V system rails; GPIOs support 1.71–5.5 V I/O signaling independently. |
| VCONN FETs | 2 × integrated low-RDS(on) FETs per port - powers EMCA cables directly without external MOSFETs or charge pumps. |
Pinout & Package
Package: 40-pin QFN (6.0 mm × 6.0 mm, 0.6 mm pitch), thermally enhanced with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1, CC2 | Configuration Channel Inputs/Outputs | Dual bidirectional BMC interface for cable orientation detection, power role negotiation, and PD messaging on Port 1. |
| CC3, CC4 | Configuration Channel Inputs/Outputs | Dual bidirectional BMC interface for Port 2 - fully independent timing and state machines from Port 1. |
| VCONN1, VCONN2 | VCONN Power Switch Outputs | Direct-drive outputs for active EMCA cable power; each controls one integrated 100-mΩ VCONN FET. |
| VBUS1, VBUS2 | Port Power Monitoring Inputs | Analog inputs for VBUS voltage sensing (via internal 4×8-bit SAR ADC) enabling source/sink overvoltage/undervoltage protection. |
| GPIO[0:27] | Configurable Digital I/O | 28 pins supporting hot-swap-capable I²C, UART, SPI, or custom control signals - configurable via firmware at runtime. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent PD 3.0 PHYs | Enables true concurrent negotiation on two Type-C ports - no time-slicing or shared resource contention between ports. |
| Hardware Fast Role Swap (FRS) | Sub-100 ms power role reversal triggered by hardware event - eliminates MCU polling and firmware latency bottlenecks. |
| Integrated dead-battery termination | Allows port to initiate PD communication even when system VDD is unpowered - critical for accessory wake-up from deep sleep. |
| Hot-swappable CC pins | CC1/CC2 and CC3/CC4 tolerate live insertion/removal without latch-up or damage - simplifies mechanical design of user-accessible ports. |
| Programmable I/O matrix | Routes any peripheral function (I²C/SPI/UART/ADC/PWM) to any GPIO pin - decouples PCB layout from firmware peripheral assignment. |
Applications
| Notebook Host Controller | USB-C Power Adapter |
|---|---|
Use Scenario: Dual USB-C ports on ultrabook chassis managing simultaneous host/peripheral roles and power delivery negotiation. IC Role / Device Role / Timing Role: Primary PD policy engine and CC line controller - handles SOP/SOP'/SOP" packet exchange, VBUS discharge control, and FRS coordination. Use Value: Enables native dual-role port behavior with <150 ms role swap, eliminating need for discrete PD controllers per port. | Use Scenario: Compact 65W GaN-based AC-DC adapter with dual USB-C outputs supporting PPS and variable voltage profiles. IC Role / Device Role / Timing Role: Dual-port PD 3.0 sink/source arbiter - negotiates voltage/current with connected devices and manages VCONN for EMCA cables. Use Value: Reduces BOM count by integrating two complete PD transceivers, VCONN drivers, and dead-battery circuitry into single QFN package. |
| Docking Station Hub | Industrial USB-C Monitor |
Use Scenario: Thunderbolt/USB4 dock with four downstream USB-C ports, DisplayPort Alt Mode, and 100W upstream power delivery. IC Role / Device Role / Timing Role: Centralized PD manager coordinating power allocation across multiple ports using extended data messaging (EDS). Use Value: Supports dynamic power budgeting and inter-port FRS - enabling seamless transition from laptop-powered to wall-powered operation. | Use Scenario: Medical-grade display with embedded USB-C upstream for video/data and downstream for HID peripherals and charging. IC Role / Device Role / Timing Role: Isolated PD controller for downstream-facing port - enforces strict current limiting and provides ±8 kV ESD robustness on CC lines. Use Value: Meets IEC60601-1 ESD requirements without external protection components, reducing failure risk in clinical environments. |
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, factory-programmed with different default firmware - lacks support for Extended Messages and FRS. | Targeted at cost-sensitive single-role (DFP-only) adapters where PD 2.0 suffices. | Select only if PD 3.0 features (e.g., PPS, EDS) are not required and firmware customization is unnecessary. |
| TPS65988DHK | TI dual-port PD controller with integrated buck-boost regulator; no MCU subsystem - relies on host processor for policy decisions. | Used in host-processor-based systems (e.g., x86 laptops) where PD logic runs in OS-level driver stack. | Choose when system already includes a capable host CPU and requires integrated power regulation - not suitable for standalone adapter designs. |
Compared with CYPD4225-40LQXIT and TPS65988DHK, the CYPD4125-40LQXIT uniquely delivers autonomous dual-port PD 3.0 operation with embedded Cortex-M0 policy engine, eliminating host dependency and enabling compact, self-contained USB-C solutions.
Availability
CYPD4125-40LQXIT is available at Aetrix Electronics and suitable for notebook host controllers, USB-C power adapters, and docking stations requiring stable component supply, long-term lifecycle support, and industrial temperature grade performance.
Supply support for CYPD4125-40LQXIT 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 manufacturer specializing in power management, automotive MCUs, and connectivity solutions, with global R&D and manufacturing infrastructure.
The EZ-PD™ CCG4 product line targets USB-C infrastructure applications - designed to replace discrete PD implementations with single-chip, firmware-configurable port controllers for adapters, docks, and host systems.
FAQ
What firmware development tools are supported for CYPD4125-40LQXIT?
Infineon's EZ-PD™ Configuration Utility (Windows GUI) and ModusToolbox™ SDK provide full firmware development, configuration, and debug support. The utility enables drag-and-drop parameter setup for PDOs, cable detection, and FRS behavior, while ModusToolbox offers CMSIS-compliant C code templates and SWD-based debugging via KitProg3.
Does CYPD4125-40LQXIT require an external crystal oscillator?
No. The device integrates a precision internal main oscillator (IMO) operating at 48 MHz with ±2% accuracy over temperature and voltage - sufficient for USB-PD BMC timing and eliminating need for external crystal or clock source. An optional external clock input is available but not required.
How is dead-battery operation implemented on this device?
Dead-battery mode uses internal charge pumps and low-leakage circuitry to power the CC detection and BMC receiver blocks directly from VBUS, allowing the device to detect plug-in events and initiate PD negotiation even when VDD is at 0 V - verified per USB PD specification section 4.5.2.2.
Can CYPD4125-40LQXIT support DisplayPort Alt Mode negotiation?
Yes - the device supports DP Alt Mode through its programmable GPIOs and firmware-configurable sideband use (SBU) pin mapping. While the CCG4 does not integrate DP PHY, it handles the USB-PD VDM (Vendor Defined Message) exchange required to initiate and manage DP Alt Mode entry/exit sequences per USB Type-C specification.
CYPD4125-40LQXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Applications:
- -
- Core Processor:
- -
- Program Memory Type:
- -
- Controller Series:
- -
- RAM Size:
- -
- Interface:
- -
- Number of I/O:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
CYPD4125-40LQXIT FAQ
1.How can I place an order for CYPD4125-40LQXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CYPD4125-40LQXIT 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 CYPD4125-40LQXIT reliable?
The price and inventory of CYPD4125-40LQXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYPD4125-40LQXIT is usually 5 days.
3.What payment methods are accepted for CYPD4125-40LQXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYPD4125-40LQXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYPD4125-40LQXIT?
CYPD4125-40LQXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYPD4125-40LQXIT 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 CYPD4125-40LQXIT?
For technical support, including CYPD4125-40LQXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYPD4125-40LQXIT requirements.
6.How does Aetrix verify that CYPD4125-40LQXIT is sourced from the original manufacturer or authorized distributors?
All CYPD4125-40LQXIT 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 CYPD4125-40LQXIT meets industry standards.
7.What is the process for return or replacement of CYPD4125-40LQXIT?
All CYPD4125-40LQXIT units undergo pre-shipment inspection (PSI). If there is an issue with CYPD4125-40LQXIT, 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 CYPD4125-40LQXIT part is unused and in its original packaging.
Return procedure for CYPD4125-40LQXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYPD4125-40LQXIT Tags
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