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Infineon Technologies CYPD6125-40LQXIT
- Part No.:
- CYPD6125-40LQXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- -
- Datasheet:
-
CYPD6125-40LQXIT.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 35WLCSP
- Quantity:
- Payment:
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Inventory:1,943
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Product details
Overview
CYPD6125-40LQXIT from Infineon Technologies (formerly Cypress) is a single-port EZ-PD™ CCG6 USB Type-C and Power Delivery port controller IC. It integrates a 48-MHz Arm® Cortex®-M0 CPU, 128-KB flash, USB-PD 3.0 PHY with Fast Role Swap, VBUS load switch controller (supporting up to 20 V provider path), dual VCONN FETs, SBU/USB2.0 analog muxes, and high-voltage protected CC/SBU pins - deployed in PCs, notebooks, and Thunderbolt/non-Thunderbolt docks.
For engineers reviewing the CYPD6125-40LQXIT datasheet, CYPD6125-40LQXIT pinout, CYPD6125-40LQXIT application, or CYPD6125-40LQXIT equivalent, key selection criteria include USB-PD 3.0 compliance with Extended Messaging, dead-battery Rd termination, slew-rate-controlled gate drivers for external PFETs, integrated TRNG for authentication, and industrial temperature support (–40 °C to +85 °C) in a 6.0 × 6.0 mm QFN-40 package.
Technical Context
The CYPD6125-40LQXIT implements a full USB-PD 3.0 protocol stack on its Cortex-M0 core, with hardware-accelerated BMC encoding/decoding, 4b/5b framing, and collision-avoidance logic in the PHY layer. Its dual-role capability is enabled by programmable Rp current sources (500 mA / 900 mA / 1.5 A / 3 A) and integrated Rd for UFP mode, plus dedicated dead-battery Rd switching.
VBUS control is split across two paths: provider-side gate driver supports slew-rate control and tolerates 24 V, while consumer-side driver enables fast role swap via coordinated PFET turn-off/turn-on. Protection includes RCP detection via three independent comparator mechanisms, OVP/UVP/SCP/RCP/OCP, and 24-V tolerant CC/SBU I/Os with internal HV clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB-PD Compliance | Full USB-PD 3.0 specification support including Extended Messages (up to 260 bytes) and Fast Role Swap (FRS) |
| CPU Core | Arm Cortex-M0 @ 48 MHz with 128-KB flash and 12-KB SRAM - sufficient for real-time PD policy engine execution |
| VBUS Provider Path | Supports up to 20 V with slew-rate-controlled gate driver tolerant to 24 V - enables robust external PFET control |
| CC Pin Protection | Integrated high-voltage protection on CC1/CC2 against accidental shorts to VBUS - eliminates need for external TVS diodes |
| Operating Voltage Range | VSYS: 2.75 V–5.5 V; VBUS: 4 V–21.5 V - supports dual-supply operation with VSYS priority and dead-battery LDO (21.5 V max) |
| Package & Temp | 40-pin QFN (6.0 mm × 6.0 mm, 0.6 mm height); industrial temperature range (–40 °C to +85 °C) |
| Authentication | On-chip True Random Number Generator (TRNG) - meets NIST SP 800-90A requirements for secure key generation |
Pinout & Package
Package: 40-pin QFN (6.0 mm × 6.0 mm, 0.6 mm height), exposed thermal pad, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1 / CC2 | USB Type-C Configuration Channel | Dual bidirectional BMC data lines with integrated Rp/Rd termination and dead-battery Rd switching |
| SBU1 / SBU2 | Sideband Use Channel | High-voltage tolerant (24 V) analog mux inputs for DisplayPort/Thunderbolt alternate mode routing |
| VBUS_P_CTRL / VBUS_C_CTRL | PFET Gate Drivers | Provider/consumer path gate drive outputs with slew-rate control (P) and 24-V tolerance (C) |
| CSP / CSN | Current Sense Inputs | Differential inputs for high-side current sensing across 5-mΩ shunt - enables precise VBUS overcurrent protection |
| V5V | VCONN Power Supply Input | Input for powering EMCA cables via integrated dual VCONN FETs (1.5 W total, OCP protected) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB2.0 HS Analog Mux | 2×2 crossbar switch routing D+/D− between top/bottom Type-C connector lanes based on plug orientation - eliminates need for external mux IC |
| Legacy Charger Detection | On-die BC1.2 and Apple Mux emulation - enables compatibility with legacy wall adapters and mobile devices without external circuitry |
| VBUS Discharge Circuit | Integrated active discharge path - ensures VBUS drops below 5 V within USB-PD-specified timing (<1 s) after detach |
| Dynamic Gate Driver | Configurable slew rate and voltage tolerance (24 V) for both provider and consumer PFET gates - reduces EMI and prevents shoot-through during FRS |
| 8-bit SAR ADC with AMUX | Shared analog mux bus connecting all GPIOs (except CC1/CC2) to 8-bit ADC - supports system-level voltage/current monitoring and thermal sensing |
Applications
| PC and Notebook USB-C Port Control | Thunderbolt-Compatible Docking Station |
|---|---|
|
Use Scenario: Integrated USB-C port controller in thin-and-light laptops requiring native PD negotiation, VBUS switching, and display alt-mode support. IC Role / Device Role / Timing Role: Central PD policy engine and physical layer transceiver managing CC communication, role determination, and VBUS path control. Use Value: Eliminates discrete PD PHY + MCU + load switch solution; reduces BOM count by ≥4 components while enabling FRS for seamless dock power handoff. |
Use Scenario: Docking station with dual USB-C ports (host-facing and device-facing), supporting DP alt-mode, VCONN-powered cables, and dynamic power role reversal. IC Role / Device Role / Timing Role: Dual-role PD controller coordinating FRS response, SBU mux reconfiguration, and VCONN FET sequencing during cable insertion/removal. Use Value: Enables <100-ms FRS transition when external power fails - maintains host connectivity without reboot or user intervention. |
| Non-Thunderbolt Host Expansion Hub | USB-C Monitor with Integrated Charging |
|
Use Scenario: Multi-port USB-C hub for desktop workstations adding USB-A, HDMI, and Ethernet, powered via single upstream Type-C cable. IC Role / Device Role / Timing Role: UFP-mode PD controller negotiating up to 100 W sink capability while managing VBUS discharge and overcurrent protection. Use Value: Integrated dead-battery Rd allows charging initiation even when system is fully discharged - improves user experience on first power-up. |
Use Scenario: 4K USB-C monitor providing video, audio, data, and up to 60 W power delivery to connected laptop. IC Role / Device Role / Timing Role: DFP-mode PD controller sourcing VBUS, detecting sink capabilities, and enforcing safety limits (OVP/UVP/SCP/RCP). Use Value: On-chip high-voltage LDO (21.5 V) powers internal logic directly from VBUS - removes need for auxiliary DC-DC converter. |
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 |
|---|---|---|---|
| CYPD6127-40LQXI | Same CCG6 silicon but with pre-programmed firmware for specific OEM use cases; no user-flashable bootloader | Targeted for mass-produced systems where firmware is fixed at factory; lacks field-upgrade flexibility | Select only if firmware is locked and volume production requires guaranteed binary consistency |
| STUSB4500QTR | Standalone USB-PD 3.0 PHY + MCU (no integrated VBUS switch controller or SBU/USB2.0 muxes) | Requires external load switches, mux ICs, and VCONN drivers - increases BOM and layout complexity | Prefer when design already uses discrete power path components and needs minimal firmware overhead |
Compared with CYPD6125-40LQXIT, CYPD6127-40LQXI trades field programmability for factory assurance, while STUSB4500QTR shifts integration burden to external components - making CYPD6125 the only option delivering full port control (PD + VBUS + mux + VCONN) in one QFN-40 package.
Availability
CYPD6125-40LQXIT is available at Aetrix Electronics and suitable for PC motherboard designs, notebook docking solutions, and USB-C monitor power delivery subsystems requiring stable component supply, long-term lifecycle support, and industrial temperature grade reliability.
Supply support for CYPD6125-40LQXIT 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 AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, and connectivity solutions, with global R&D and manufacturing infrastructure.
CYPD6125-40LQXIT belongs to the EZ-PD™ CCG6 product line - designed specifically for single-port USB Type-C and Power Delivery implementation in space-constrained, high-reliability computing and peripheral systems.
FAQ
Does CYPD6125-40LQXIT support USB PD 3.0 Extended Messages?
Yes, CYPD6125-40LQXIT fully supports USB PD 3.0 Extended Messages up to 260 bytes. It implements a chunking mechanism to maintain backward compatibility with USB-PD 2.0 hosts by fragmenting large messages into 2.0-compliant segments until extended message capability is confirmed during discovery.
What is the function of the CSP and CSN pins?
CSP and CSN are differential current sense inputs used exclusively with an external 5-mΩ shunt resistor on the VBUS provider path. They feed the on-die high-side current sense amplifier, enabling real-time overcurrent detection, reverse current protection (RCP), and accurate power metering without external op-amps or ADCs.
Can CYPD6125-40LQXIT operate without VSYS supply?
Yes - when VSYS is absent, the integrated high-voltage LDO (rated up to 21.5 V) derives operating power directly from VBUS. This dead-battery mode enables CC line termination, Rd detection, and basic PD negotiation even when the main system rail is unpowered.
Is the SBU analog mux capable of handling DisplayPort 1.4 signals?
The integrated SBU 4×2 analog mux supports DisplayPort alt-mode signaling, but its bandwidth and insertion loss are validated for DP 1.2 (HBR2) operation. For DP 1.4 (HBR3/UHBR10), signal integrity must be verified per board layout; the mux itself does not limit speed, but trace design and termination become critical.
CYPD6125-40LQXIT 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:
- -
CYPD6125-40LQXIT FAQ
1.How can I place an order for CYPD6125-40LQXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CYPD6125-40LQXIT 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 CYPD6125-40LQXIT reliable?
The price and inventory of CYPD6125-40LQXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYPD6125-40LQXIT is usually 5 days.
3.What payment methods are accepted for CYPD6125-40LQXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYPD6125-40LQXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYPD6125-40LQXIT?
CYPD6125-40LQXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYPD6125-40LQXIT 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 CYPD6125-40LQXIT?
For technical support, including CYPD6125-40LQXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYPD6125-40LQXIT requirements.
6.How does Aetrix verify that CYPD6125-40LQXIT is sourced from the original manufacturer or authorized distributors?
All CYPD6125-40LQXIT 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 CYPD6125-40LQXIT meets industry standards.
7.What is the process for return or replacement of CYPD6125-40LQXIT?
All CYPD6125-40LQXIT units undergo pre-shipment inspection (PSI). If there is an issue with CYPD6125-40LQXIT, 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 CYPD6125-40LQXIT part is unused and in its original packaging.
Return procedure for CYPD6125-40LQXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYPD6125-40LQXIT Tags
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