My Inquiry
My Account
Infineon Technologies CYPD5125-40LQXI
- Part No.:
- CYPD5125-40LQXI
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CYPD5125-40LQXI.pdf
- Description:
- CCG5
- Quantity:
- Payment:
- Shipping:
Inventory:2,259
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CYPD5125-40LQXI from Infineon Technologies (formerly Cypress) is a dual-port USB Type-C and Power Delivery 3.0 port controller with integrated Arm® Cortex®-M0 CPU (48 MHz), 128-KB flash, and two full Type-C transceivers including RP/RD termination, VCONN FETs, and high-voltage LDO (21.5 V). It supports fast role swap, extended messaging (260-byte), and operates across –40 °C to +85 °C in a 6.0 × 6.0 mm 40-pin QFN package for notebook, dock, and Thunderbolt host applications.
For engineers reviewing the CYPD5125-40LQXI datasheet, CYPD5125-40LQXI pinout, CYPD5125-40LQXI application, or CYPD5125-40LQXI equivalent, key selection considerations include dual-port PD 3.0 compliance, integrated VBUS OVP/OCP, CC/SBU high-voltage tolerance (VBUS short protection), and support for dead-battery termination and BC 1.2/Apple charger detection.
Technical Context
The device implements two independent USB-PD physical layers with BMC/4b5b encoding, collision-avoidance half-duplex communication, and programmable RP current sources (for DFP) and RD resistors (for UFP/DRP dead-battery detection). Each port integrates dedicated SBU 2×2 crossbar mux, USB HS 2×2 analog switch, and VCONN FETs capable of 1.5 W output.
Its MCU subsystem features tightly coupled flash accelerator (2 WS @ 48 MHz), 12-KB SRAM, four reconfigurable SCBs (I²C/SPI/UART), two TCPWM blocks, and an 8-bit SAR ADC with internal bandgap and temperature references - all managed via serial wire debug (SWD) interface with four breakpoint comparators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB-PD Version | Complies fully with USB-PD 3.0 and backward compatible with PD 2.0; enables extended messages up to 260 bytes with chunking for legacy interoperability. |
| CPU Core | Arm Cortex-M0 at 48 MHz with SWD debug interface, 4 breakpoint and 2 watchpoint comparators - optimized for real-time PD protocol stack execution. |
| Memory | 128-KB flash (with accelerator delivering 85% SRAM-like access speed) and 12-KB SRAM - sufficient for dual-port PD firmware plus custom application logic. |
| Power Input Range | 2.75 V to 21.5 V operation via VSYS (primary) or VBUS_P1/P2 (secondary); integrated HV LDO eliminates need for external bias supply. |
| VCONN Output | Two integrated VCONN FETs per port, each supporting 1.5 W delivery to EMCA cables - removes need for discrete VCONN power switches. |
| ESD Protection | ±8-kV contact / ±15-kV air-gap IEC 61000-4-2 Level 4C on CC, D±, and SBU pins - meets industrial-grade system-level ESD requirements without external TVS. |
| Package | 40-pin QFN (6.0 × 6.0 × 0.6 mm), RoHS-compliant, industrial temperature range (–40 °C to +85 °C) - suitable for space-constrained portable docking solutions. |
Pinout & Package
Package: 40-pin QFN (6.0 mm × 6.0 mm × 0.6 mm, 0.4 mm pitch), exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1, CC2 | Type-C Configuration Channel | Dual bidirectional BMC data lines with integrated RP/RD termination switching and ±8-kV ESD - enable plug orientation detection, role negotiation, and dead-battery termination. |
| VBUS_P1, VBUS_P2 | Port VBUS Input/Output Monitoring | High-voltage tolerant inputs (up to 21.5 V) for VBUS sensing and OVP/OCP - connect to external sense resistor (10 mΩ) for high-side current monitoring. |
| VCONN_P1, VCONN_P2 | VCONN Power Switch Control | Gate drive outputs for internal VCONN FETs - automatically power EMCA cable sideband use (SBU) when required, with integrated OCP. |
| CSP_P1/CSN_P1, CSP_P2/CSN_P2 | Current Sense Inputs | Differential inputs for external 10-mΩ shunt - enable accurate VBUS overcurrent detection with programmable threshold via firmware. |
| VBUS_P_CTRL, VBUS_C_CTRL | External PFET Gate Drivers | High-voltage tolerant (VBUS-rail) open-drain outputs - drive external VBUS source/sink PFETs with external pull-up; support provider/consumer-side control. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Dual USB-PD PHY | Two complete BMC transceivers with RP/RD switching, SOP detection, CRC generation, and 4b5b encoding - eliminates need for external PHY ICs or discrete termination resistors. |
| Fast Role Swap (FRS) | Hardware-accelerated FRS response <10 ms - enables docks to seamlessly transition from adapter-powered to bus-powered mode during AC loss without host intervention. |
| USB Analog Mux Architecture | 2×2 HS USB 2.0 switch + 2×2 SBU crossbar per port - routes D± and SBU signals based on CC orientation, supporting DisplayPort and Thunderbolt alternate modes without signal degradation. |
| Charger Detection Engine | On-chip BC 1.2 and Apple charging (source-only) detection - reduces BOM count by removing external charger ID ICs in host-side USB ports. |
| High-Voltage Tolerance | CC and SBU pins withstand accidental shorts to VBUS (≤21.5 V) - prevents latch-up or damage during connector mating/miswiring in rugged docking environments. |
Applications
| Notebook Dual-Port Docking | Thunderbolt 3 Host Controller |
|---|---|
Use Scenario: A compact USB-C dock providing simultaneous video (DP Alt Mode), data (USB 2.0), and 60-W power delivery to a laptop via single cable. IC Role / Device Role / Timing Role: Dual-port PD controller managing CC negotiation, VBUS sourcing/sinking, VCONN power, and DP Alt Mode SBU routing. Use Value: Eliminates need for separate PD PHY, VCONN switch, and charger ID IC - reduces PCB area by >35% versus discrete solution. | Use Scenario: Thunderbolt 3 host system requiring native USB-C connectivity with PD 3.0 compliance and support for dual-role power negotiation. IC Role / Device Role / Timing Role: Primary Type-C port manager handling FRS, extended PD messaging, and SBU signal routing for Thunderbolt tunneling. Use Value: Enables sub-10-ms FRS response and 260-byte vendor-defined messages - critical for seamless Thunderbolt host-to-device handoff during hot-plug. |
| Enterprise Desktop Dock | USB-C Monitor with Power Delivery |
Use Scenario: Multi-port desktop dock supporting dual 4K displays (via DP MST), Gigabit Ethernet, and 100-W PD power pass-through. IC Role / Device Role / Timing Role: Central PD coordinator managing dual upstream/downstream port roles, VBUS discharge timing, and OVP/OCP fault isolation. Use Value: Integrated VBUS discharge FETs meet USB-PD spec tDISCHARGE ≤ 300 ms - ensures safe connector detachment without voltage holdover. | Use Scenario: USB-C monitor that powers connected laptop while receiving video and USB data over same cable. IC Role / Device Role / Timing Role: Downstream-facing port (DFP) controller implementing RP-based power sourcing, dead-battery detection, and BC 1.2 charging emulation. Use Value: On-die Apple charging detection allows compatibility with iOS devices without external ID resistor networks - simplifies BOM and layout. |
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 |
|---|---|---|---|
| CYPD5225-40LQXI | Same die, NRND status removed; enhanced firmware update mechanism and improved FRS timing consistency. | Recommended for new designs requiring long-term supply continuity and certified USB-IF PD 3.0 compliance. | Select for production ramp where lifecycle assurance and USB-IF certification are mandatory. |
| UPD350A | Single-port PD 3.0 controller with integrated USB 2.0 PHY; no ARM core - relies on host MCU for policy engine. | Suitable only for host-managed PD implementations (e.g., SoC-based systems with embedded PD stack). | Choose only when host processor handles PD protocol stack and dual-port functionality is not required. |
Compared with CYPD5125-40LQXI, CYPD5225-40LQXI offers assured long-term availability and tighter FRS timing, while UPD350A shifts PD processing burden to host software - making CYPD5125-40LQXI optimal for autonomous dual-port control in resource-constrained dock designs.
Availability
CYPD5125-40LQXI is available at Aetrix Electronics and suitable for notebook docking stations, Thunderbolt 3 host interfaces, and enterprise USB-C monitors requiring stable component supply, industrial temperature operation, and dual-port USB-PD 3.0 compliance.
Supply support for CYPD5125-40LQXI 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 acquired Cypress Semiconductor in 2020 and now owns and supports the EZ-PD™ portfolio. Infineon is a global semiconductor leader focused on power systems, automotive, and industrial applications.
This device belongs to the EZ-PD™ CCG5 product line, designed specifically for autonomous, dual-port USB Type-C and Power Delivery control in space-constrained, thermally demanding docking and host systems - emphasizing integration, reliability, and USB-IF certification readiness.
FAQ
What is the maximum VBUS input voltage supported by CYPD5125-40LQXI?
CYPD5125-40LQXI supports VBUS input up to 21.5 V via its integrated high-voltage LDO. This rating applies to both VBUS_P1 and VBUS_P2 pins, enabling compatibility with USB-PD 3.0 Extended Power Range (EPR) adapters up to 48 V when used with appropriate external PFETs and level-shifting gate drivers - though internal regulation remains capped at 21.5 V.
Does CYPD5125-40LQXI require an external crystal or oscillator?
No external clock source is required. CYPD5125-40LQXI integrates a factory-trimmed internal oscillator that delivers stable 48-MHz system clock for the Cortex-M0 core and USB-PD PHY. The oscillator meets USB-PD 3.0 timing jitter requirements (<±100 ppm) without external components, reducing BOM cost and board space.
Can CYPD5125-40LQXI support DisplayPort Alternate Mode?
Yes. The device integrates dual 2×2 SBU analog crossbar switches and USB HS 2×2 muxes per port, enabling dynamic routing of DP AUX and SBU1/SBU2 signals based on CC plug orientation. It supports full DP Alt Mode handshake via PD structured VDMs and provides hardware-level signal integrity optimization for DP 1.4 compliance.
Is CYPD5125-40LQXI pin-compatible with other CCG5 variants?
CYPD5125-40LQXI shares identical 40-pin QFN footprint and pin mapping with CYPD5225-40LQXI, allowing direct replacement in existing designs. However, CYPD5125-40LQXI is marked NRND (Not Recommended for New Designs) per Infineon documentation, and CYPD5225-40LQXI is the designated production-recommended variant with updated firmware and qualification.
CYPD5125-40LQXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 40-UFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Controller
- Interface:
- I2C, SPI, UART
- Standards:
- USB 3.0
- Voltage - Supply:
- 2.75V, 3.15V, 4V ~ 5.5V, 21.5V
- Current - Supply:
- 10mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Supplier Device Package:
- 40-QFN (6x6)
- Grade:
- -
- Qualification:
- -
CYPD5125-40LQXI FAQ
1.How can I place an order for CYPD5125-40LQXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CYPD5125-40LQXI 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 CYPD5125-40LQXI reliable?
The price and inventory of CYPD5125-40LQXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYPD5125-40LQXI is usually 5 days.
3.What payment methods are accepted for CYPD5125-40LQXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYPD5125-40LQXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYPD5125-40LQXI?
CYPD5125-40LQXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYPD5125-40LQXI 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 CYPD5125-40LQXI?
For technical support, including CYPD5125-40LQXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYPD5125-40LQXI requirements.
6.How does Aetrix verify that CYPD5125-40LQXI is sourced from the original manufacturer or authorized distributors?
All CYPD5125-40LQXI 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 CYPD5125-40LQXI meets industry standards.
7.What is the process for return or replacement of CYPD5125-40LQXI?
All CYPD5125-40LQXI units undergo pre-shipment inspection (PSI). If there is an issue with CYPD5125-40LQXI, 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 CYPD5125-40LQXI part is unused and in its original packaging.
Return procedure for CYPD5125-40LQXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYPD5125-40LQXI Tags
-
PTN5150AHXMP
NXP USA Inc.
-
USB3740B-AI9-TR
Microchip Technology
-
USB3740B-AI2-TR
Microchip Technology
-
USB3300-EZK-TR
Microchip Technology
-
USB3300-EZK
Microchip Technology
-
FUSB340TMX
onsemi
-
FUSB302BMPX
onsemi
-
DP83826IRHBR
Texas Instruments
-
MCP2518FDT-E/QBB
Microchip Technology
-
FUSB302MPX
onsemi
-
MCP2518FDT-E/SL
Microchip Technology
-
FT260Q-R
FTDI, Future Technology Devices International Ltd
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
