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Infineon Technologies CYPD3120-40LQXI
- Part No.:
- CYPD3120-40LQXI
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 40-UFQFN Exposed Pad
- Datasheet:
-
CYPD3120-40LQXI.pdf
- Description:
- CCG3
- Quantity:
- Payment:
- Shipping:
Inventory:2,183
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Product details
Overview
CYPD3120-40LQXI from Infineon Technologies (formerly Cypress Semiconductor) is a 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, integrated BMC transceiver, dual VBUS gate drivers, VCONN FETs, hardware crypto engine, and ±8-kV IEC61000-4-2 ESD protection on CC/SBU/DP/DM/VBUS pins - deployed in notebook docking stations, USB-C power adapters, and monitor ports.
For engineers reviewing the CYPD3120-40LQXI datasheet, CYPD3120-40LQXI pinout, CYPD3120-40LQXI application, or CYPD3120-40LQXI equivalent, key selection criteria include USB-PD 3.0 compliance, dual-gate-driver support for external VBUS FETs, dead-battery detection, fast role swap capability, and industrial temperature range (–40 °C to +105 °C) operation.
Technical Context
The CYPD3120-40LQXI implements a full USB Type-C physical layer with integrated BMC transceiver, analog crossbar for DisplayPort AUX/SBU routing, and HPD processor for sink/source control. It supports programmable RP/RD/RA terminations and VCONN leakers for EMCA cable compatibility.
Its USB-PD subsystem integrates OV/UV monitoring on VBUS_C, current-sense amplifier with interrupt-driven overcurrent shutdown, and configurable gate drivers supporting both N- and P-channel external VBUS FETs - enabling robust, standards-compliant power path control without external supervision.
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-firmware images, PD policy stack, and Billboard device class implementation. |
| USB-PD Support | USB-PD 3.0 + Fast Role Swap - allows seamless host/peripheral role reversal during active power negotiation. |
| VCONN Supply | Integrated 5-V-tolerant VCONN FETs - powers USB-C cables directly without external regulators or switches. |
| ESD Protection | ±8 kV contact / ±15 kV air-gap (IEC61000-4-2 Level 4C) on CC1/CC2/SBU1/SBU2/DP/DM/VBUS - eliminates need for discrete TVS diodes on critical Type-C interface pins. |
| Operating Voltage | 2.7 V to 21.5 V input - supports wide-range DC-DC inputs common in adapters and docks, including legacy 12/19-V rails. |
| Temperature Range | –40 °C to +105 °C - qualified for industrial and mobile computing environments where thermal margin is constrained. |
Pinout & Package
CYPD3120-40LQXI is housed in a 40-pin QFN package (6 mm × 6 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are validated per Infineon's 002-03288 Rev. *J datasheet, Figure 9 (Page 9).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1, CC2 | USB Type-C Configuration Channel | Dual bidirectional BMC PHY interfaces with integrated termination switching - detects plug orientation and negotiates DRP/DFP/UFP roles. |
| VBUS_P_CTRL, VBUS_C_CTRL | External VBUS Gate Driver Outputs | Two independent high-side gate drivers - directly drive N- or P-channel MOSFETs for VBUS_P (source) and VBUS_C (sink) power paths. |
| VCONN1, VCONN2 | VCONN Power Switch Outputs | Integrated 5-V-tolerant FETs - supply regulated 5 V to CC lines of active cables, eliminating need for external VCONN regulators. |
| SBU1, SBU2 | Sideband Use Interface | Analog-switched via internal crossbar to AUX_P/AUX_N - enables DisplayPort Alt Mode signaling without external multiplexers. |
| HPD | Hot Plug Detect | Dedicated HPD processor input/output - monitors or asserts DisplayPort hot-plug status autonomously, reducing MCU intervention. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Crypto Engine | AES-128/256, SHA-1/SHA-2, CRC, PRNG - enables secure firmware authentication and trusted field updates without software overhead. |
| Integrated Billboard Device | Full-speed USB 2.0 device controller preconfigured as USB Billboard Class - reports USB-C configuration errors (e.g., "Invalid Cable") to host OS without custom driver. |
| Programmable Pull Resistors | On-chip RA/RP/RD with <1% tolerance - eliminates external resistor networks and reduces BOM count while ensuring USB-IF compliance. |
| Dead-Battery Detection | VBUS wake-up from 0 V system supply - allows port initialization even when host battery is fully depleted, critical for laptop dock charging. |
| Four Reconfigurable SCBs | I2C/SPI/UART per SCB, up to 1 Mbps I2C Fast Mode Plus - supports simultaneous communication with PMIC, display IC, and system MCU without resource contention. |
Applications
| USB-C Docking Station | Universal Power Adapter |
|---|---|
|
Use Scenario: A compact desktop dock providing USB-C video output, data, and up to 100 W power delivery to laptops. IC Role / Device Role / Timing Role: Primary USB-PD policy manager and Type-C port controller - handles PD contract negotiation, VBUS switching, and DisplayPort Alt Mode handshaking. Use Value: Integrated VCONN FETs and analog crossbar eliminate 5 discrete components; hardware OCP/OVP enables fail-safe 100-W power path control. |
Use Scenario: Multi-voltage AC/DC adapter supporting 5–20 V output profiles for smartphones, tablets, and notebooks. IC Role / Device Role / Timing Role: USB-C port controller coordinating with secondary-side DC-DC controller - manages PD messaging, voltage step changes, and cable e-marker authentication. Use Value: Dead-battery detection ensures adapter powers on even when connected to a fully discharged device; ±8-kV ESD protects against user-handling surges. |
| Monitor with USB-C Input | USB-C Laptop Port Controller |
|
Use Scenario: 4K monitor accepting video, USB data, and 60 W power via single USB-C upstream connection. IC Role / Device Role / Timing Role: UFP-mode Type-C controller - detects source capability, configures DP Alt Mode, and manages VBUS sink behavior per PD contract. Use Value: Integrated HPD processor autonomously manages DisplayPort hot-plug events; dual SCBs enable concurrent I2C comms with panel timing controller and EDID EEPROM. |
Use Scenario: Embedded port controller in ultrabook design handling host-side USB-C connectivity, charging, and peripheral enumeration. IC Role / Device Role / Timing Role: DRP-capable controller managing dual-role negotiation, battery charging via BC1.2/Proprietary detection, and firmware update over CC line. Use Value: Hardware-accelerated crypto enables secure firmware updates over USB-C without exposing keys in RAM; 20 GPIOs support sideband signaling and system debug. |
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 |
|---|---|---|---|
| STUSB4500QTR | Standalone USB-PD 3.0 PHY + MCU-less policy engine; no integrated ARM core or flash memory. | Requires external microcontroller for full PD policy management and firmware customization. | Choose when minimal BOM cost and fixed PD policy suffice; avoid if dynamic firmware updates or Billboard functionality are required. |
| TUSB8041RJER | USB 3.1 Gen 1 hub controller with integrated Type-C switch; lacks native PD 3.0 support and BMC transceiver. | Supports data-only USB-C hubs; requires companion PD controller (e.g., TUSB564) for power negotiation. | Choose only for USB data expansion applications; not suitable as standalone PD port controller. |
Compared with STUSB4500QTR and TUSB8041RJER, CYPD3120-40LQXI delivers autonomous, firmware-programmable PD 3.0 control with integrated MCU, crypto, and Billboard - reducing system-level component count and enabling certified error reporting and secure updates without external hosts.
Availability
CYPD3120-40LQXI is available at Aetrix Electronics and suitable for USB-C docking stations, universal power adapters, and monitor ports requiring stable component supply, industrial temperature operation, and long-term lifecycle support.
Supply support for CYPD3120-40LQXI 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 is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and connectivity solutions with strong focus on reliability and industrial-grade qualification.
CYPD3120-40LQXI belongs to Infineon's EZ-PD™ CCG3 product line - designed specifically for USB Type-C and Power Delivery applications in computing peripherals, power delivery systems, and display interfaces requiring integrated policy control and robust ESD protection.
FAQ
Does CYPD3120-40LQXI support USB Power Delivery 3.0 Programmable Power Supply (PPS)?
Yes, CYPD3120-40LQXI supports USB PD 3.0 PPS through firmware implementation using its integrated BMC transceiver and ARM Cortex-M0 subsystem. PPS negotiation requires customer-developed or Infineon-provided firmware that implements the PPS message set and voltage/current regulation loop - the hardware provides all necessary timers, ADCs, and GPIO control for closed-loop PPS operation.
Can CYPD3120-40LQXI operate without an external crystal?
Yes. CYPD3120-40LQXI integrates a factory-trimmed IMO (Internal Main Oscillator) capable of 48 MHz operation with ±2% accuracy - sufficient for USB full-speed and USB-PD BMC timing. An external crystal is optional and only needed if tighter frequency stability (<±0.25%) is required for specific USB audio or isochronous applications.
What is the maximum continuous current rating for the integrated VCONN FETs?
The integrated VCONN FETs are rated for continuous 200 mA output per channel (CC1 or CC2), with thermal derating above 70 °C ambient. This meets USB-IF requirements for VCONN supply in USB-C cables up to 2 m length and supports active cable e-marker authentication without external current boosting.
Is the CYPD3120-40LQXI pin-compatible with other CCG3 variants like CYPD3121?
No. While CYPD3120-40LQXI shares the same 40-QFN package footprint with CYPD3121-40LQXI, pin assignments differ for SCB, ADC, and GPIO functions. The datasheet confirms distinct pinouts across CCG3 SKUs - direct replacement requires PCB layout revision and firmware adaptation to match signal routing and peripheral mapping.
CYPD3120-40LQXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- EZ-PD™ CCG3
- Package/Case:
- 40-UFQFN Exposed Pad
- Packaging:
- Tray
- 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:
- 16
- Voltage - Supply:
- 2.7V ~ 21.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-QFN (6x6)
CYPD3120-40LQXI FAQ
1.How can I place an order for CYPD3120-40LQXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CYPD3120-40LQXI 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 CYPD3120-40LQXI reliable?
The price and inventory of CYPD3120-40LQXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYPD3120-40LQXI is usually 5 days.
3.What payment methods are accepted for CYPD3120-40LQXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYPD3120-40LQXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYPD3120-40LQXI?
CYPD3120-40LQXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYPD3120-40LQXI 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 CYPD3120-40LQXI?
For technical support, including CYPD3120-40LQXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYPD3120-40LQXI requirements.
6.How does Aetrix verify that CYPD3120-40LQXI is sourced from the original manufacturer or authorized distributors?
All CYPD3120-40LQXI 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 CYPD3120-40LQXI meets industry standards.
7.What is the process for return or replacement of CYPD3120-40LQXI?
All CYPD3120-40LQXI units undergo pre-shipment inspection (PSI). If there is an issue with CYPD3120-40LQXI, 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 CYPD3120-40LQXI part is unused and in its original packaging.
Return procedure for CYPD3120-40LQXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYPD3120-40LQXI Tags
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