My Inquiry
My Account
Infineon Technologies CYPD3171-24LQXQ
- Part No.:
- CYPD3171-24LQXQ
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 24-UFQFN Exposed Pad
- Datasheet:
-
CYPD3171-24LQXQ.pdf
- Description:
- IC USB TYPE-C CONTROLLER 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:36,300
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CYPD3171-24LQXQ from Infineon is a single-chip USB Type-C port controller with integrated Arm® Cortex®-M0 MCU (64 KB Flash, 8 KB SRAM), full USB PD 3.1 + PPS support, dual legacy charger detection (QC 4.0, Apple 2.4A, AFC, BC 1.2), and analog VBUS regulation with low-side current sense amplifier - deployed in PC adapters, car chargers, and power banks.
For engineers reviewing the CYPD3171-24LQXQ datasheet, CYPD3171-24LQXQ pinout, CYPD3171-24LQXQ application, or CYPD3171-24LQXQ equivalent, key selection criteria include CC-line short protection (±8 kV contact ESD), 24-pin QFN package compatibility, VBUS regulation accuracy (±1.5% typical), and dual SCB peripherals for I²C/SPI/UART host interfacing.
Technical Context
The device implements a dedicated USB PD physical layer with BMC encoding/decoding, collision-avoidance half-duplex communication, and programmable RP/RD termination switching per USB Type-C spec. Its two 8-bit SAR ADCs support GPIO and DP/DM voltage sensing with internal bandgap or VDDD reference.
Integrated high-voltage regulator enables direct feedback or optocoupler-based secondary-side VBUS control; low-side current sense amplifier supports constant-current mode with shunt resistor interface; dual PFET gate drivers and discharge FETs manage VBUS path switching and safe discharge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB PD Standard | Complies with USB PD Revision 3.1 including Programmable Power Supply (PPS) mode |
| MCU Core | Arm® Cortex®-M0, 32-bit, 64 KB flash, 8 KB SRAM, SWD debug interface |
| VBUS Regulation | Analog regulation with ±1.5% typical accuracy; supports constant voltage or constant current mode |
| ESD Protection | ±8 kV contact / ±15 kV air-gap on CC1, CC2, DP0, DM0, P2.2, P2.3 per IEC61000-4-2 Level 4C |
| Operating Voltage | 3.0 V to 24.5 V supply; 30 V tolerant pins for robustness in automotive and adapter environments |
| Temperature Range | –40°C to +105°C industrial grade operation without derating |
| Legacy Charging | Dual independent charger detect blocks supporting QC 4.0, Apple 2.4A, AFC, and BC 1.2 protocols |
Pinout & Package
Package: 24-pin QFN (4 mm × 4 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1, CC2 | Type-C Configuration Channel | BMC-encoded PD communication; integrated RP/RD switching; VBUS short-tolerant (17–22 V DC for 1000 h) |
| DP0, DM0 | USB 2.0 Data Pair | Legacy charger detection (BC 1.2, QC 4.0, AFC); ADC input multiplexing support |
| VBUS_C_CTRL | VBUS Control Output | Drives external PFET gate for VBUS path enable/disable; integrated gate driver with slew rate control |
| FB | Feedback Input | Analog input for secondary-side VBUS regulation; accepts direct feedback or optocoupler output |
| LSCSA+ | Low-Side Current Sense | Inputs shunt resistor voltage for constant-current regulation; differential input with 100 mV full-scale range |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB PD PHY | Full BMC transceiver with hardware collision avoidance and RP/RD programmability eliminates external transceiver IC |
| Dual Charger Detection | Independent DP/DM blocks support simultaneous QC 4.0 and Apple charging emulation without firmware arbitration |
| Analog VBUS Regulation | On-chip error amplifier and reference enable precise CV/CC control without external op-amps or DACs |
| System-Level ESD | On-die protection on CC, DP/DM, and VBUS-related pins meets IEC61000-4-2 Level 4C without external TVS diodes |
| High-Voltage Short Tolerance | CC1/CC2 pins withstand 22 V DC shorts to VBUS indefinitely at ≤17 V, enabling reliable connector layout in compact adapters |
Applications
| PC Power Adapter | Automotive USB Charger |
|---|---|
Use Scenario: 65 W GaN-based laptop adapter with dual USB-C ports and PPS support. IC Role / Device Role / Timing Role: Primary Type-C port controller managing PD negotiation, VBUS regulation, and safety monitoring. Use Value: Reduces BOM count by integrating termination resistors, OVP/OCP, and shunt regulator - eliminating 7 discrete components. | Use Scenario: 12 V–24 V vehicle-mounted dual-port charger supporting fast charging for smartphones and tablets. IC Role / Device Role / Timing Role: System-level USB-C controller handling plug orientation, legacy charging handshakes, and VBUS discharge sequencing. Use Value: Enables extended temperature operation (–40°C to +105°C) and withstands load dump transients up to 30 V without latch-up. |
| Portable Power Bank | Universal Wall Charger |
Use Scenario: 20,000 mAh power bank with bidirectional PD 3.1 and PPS charging. IC Role / Device Role / Timing Role: Dual-role port controller implementing sink/source negotiation, dead-battery RD bonding, and battery charge path management. Use Value: Integrated dead-battery RD option on CC pins ensures reliable connection detection even when battery is fully discharged. | Use Scenario: Multi-protocol wall charger supporting USB-A + USB-C outputs with adaptive voltage/current scaling. IC Role / Device Role / Timing Role: Central controller coordinating Type-A legacy charging (BC 1.2, AFC) and Type-C PD negotiation over shared power stage. Use Value: Dual SCB peripherals allow concurrent I²C communication with AC-DC controller and SPI update of configuration parameters. |
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 |
|---|---|---|---|
| CYPD3174-24LQXQ | Same die, but configured for dual Type-C port operation (2× CC, 2× DP/DM); higher pin count for second port routing | Required for dual-C-port designs; not pin-compatible due to additional CC2/DP1/DM1 signals | Select when system requires two independent Type-C ports with full PD negotiation capability |
| IP2721 | Single-core RISC-V MCU, no integrated VBUS regulation amplifier; requires external op-amp and reference for CV/CC control | Lower integration increases BOM cost and board area; lacks analog regulation loop and LSCSA block | Consider only if firmware flexibility outweighs analog control precision and component count reduction |
Compared with CYPD3174-24LQXQ, CYPD3171-24LQXQ reduces PCB routing complexity and cost for single-port applications; versus IP2721, it delivers tighter VBUS regulation (±1.5% vs. ±3%), eliminates external analog components, and integrates certified USB PD 3.1 PPS firmware stack.
Availability
CYPD3171-24LQXQ is available at Aetrix Electronics and suitable for PC power adapters, automotive USB chargers, and portable power banks requiring stable component supply, long-lifecycle support, and production-ready USB PD 3.1 compliance.
Supply support for CYPD3171-24LQXQ 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 ICs, and USB-C solutions, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.
CYPD3171 belongs to the EZ-PD™ CCG3PA product line, designed specifically for cost-sensitive, high-volume consumer USB-C power delivery applications where integration, reliability, and qualification-ready firmware are critical.
FAQ
What is the maximum VBUS voltage the CYPD3171-24LQXQ can regulate?
The CYPD3171-24LQXQ supports VBUS regulation up to 24.5 V with its integrated analog feedback loop. Its VBUS_C_CTRL pin drives external PFETs capable of handling up to 30 V drain-source voltage, and its CC1/CC2 pins tolerate accidental shorts to VBUS up to 22 V DC for 1000 hours - validated per Infineon's absolute maximum ratings table.
Does CYPD3171-24LQXQ support USB PD 3.1 Programmable Power Supply (PPS)?
Yes, CYPD3171-24LQXQ natively supports USB PD 3.1 including PPS mode through its integrated BMC PHY and pre-certified firmware stack. It achieves PPS voltage steps of 20 mV and current steps of 50 mA with closed-loop analog regulation, enabling precise control required for fast-charging smartphones and laptops.
Can CYPD3171-24LQXQ operate without an external crystal oscillator?
Yes - the device includes a factory-trimmed internal main oscillator (IMO) operating at 48 MHz, eliminating need for external crystal. This IMO feeds the Cortex-M0 core and USB PD PHY; clock accuracy meets USB PD timing requirements without external frequency reference, reducing BOM and layout complexity.
How is dead-battery support implemented on CYPD3171-24LQXQ?
Dead-battery RD resistors are implemented via bond option during wafer sort: CYPD3171-24LQXQ parts for power bank (sink) applications have CC1/CC2 pins bonded directly to on-die RD resistors, ensuring connection detection even at 0 V VDD. DFP-oriented variants omit this bond, allowing open-circuit CC lines per USB Type-C specification.
CYPD3171-24LQXQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- EZ-PD™ CCG3PA
- Package/Case:
- 24-UFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Applications:
- USB Type C
- Core Processor:
- ARM® Cortex®-M0
- Program Memory Type:
- FLASH (64kB)
- Controller Series:
- -
- RAM Size:
- 8K x 8
- Interface:
- I2C, SPI, UART
- Number of I/O:
- 12
- Voltage - Supply:
- 3V ~ 24.5V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
CYPD3171-24LQXQ FAQ
1.How can I place an order for CYPD3171-24LQXQ through Aetrix?
Please submit a Request for Quotation (RFQ) for CYPD3171-24LQXQ 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 CYPD3171-24LQXQ reliable?
The price and inventory of CYPD3171-24LQXQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYPD3171-24LQXQ is usually 5 days.
3.What payment methods are accepted for CYPD3171-24LQXQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYPD3171-24LQXQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYPD3171-24LQXQ?
CYPD3171-24LQXQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYPD3171-24LQXQ 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 CYPD3171-24LQXQ?
For technical support, including CYPD3171-24LQXQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYPD3171-24LQXQ requirements.
6.How does Aetrix verify that CYPD3171-24LQXQ is sourced from the original manufacturer or authorized distributors?
All CYPD3171-24LQXQ 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 CYPD3171-24LQXQ meets industry standards.
7.What is the process for return or replacement of CYPD3171-24LQXQ?
All CYPD3171-24LQXQ units undergo pre-shipment inspection (PSI). If there is an issue with CYPD3171-24LQXQ, 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 CYPD3171-24LQXQ part is unused and in its original packaging.
Return procedure for CYPD3171-24LQXQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYPD3171-24LQXQ Tags
-
CYPD3175-24LQXQ
Infineon Technologies
-
SLB9672VU20FW1523XTMA1
Infineon Technologies
-
SLB9670VQ20FW785XTMA1
Infineon Technologies
-
SLB9672XU20FW1523XTMA1
Infineon Technologies
-
SLB9673XU20FW2613XTMA1
Infineon Technologies
-
CYPD3125-40LQXIT
Infineon Technologies
-
AT97SC3204-U2A1A-20
Microchip Technology
-
AT97SC3204-U2A1A-10
Microchip Technology
-
SLM9670AQ20FW1311XTMA1
Infineon Technologies
-
SLB9672XU20FW1613XTMA1
Infineon Technologies
-
SLB9672AU20FW1613XTMA1
Infineon Technologies
-
SLB9673AU20FW2613XTMA1
Infineon Technologies
Tech Hub
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…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
