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Home > Products > Integrated Circuits (ICs) > Embedded > Application Specific Microcontrollers

Infineon Technologies CYPD3174-24LQXQT

Name: CYPD3174-24LQXQT
Brand: Infineon Technologies
SKU: CYPD3174-24LQXQT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CYPD3174-24LQXQT

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

Package:: 24-UFQFN Exposed Pad

Datasheet:: CYPD3174-24LQXQT.pdf

Description:: IC USB TYPE-C CONTROLLER 24QFN

Quantity:: RFQ Add To RFQ list

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Inventory:2,500

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Product details

Overview

CYPD3174-24LQXQT 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 support including PPS mode, dual legacy charger detection (QC 4.0, Apple 2.4A, AFC, BC 1.2), and analog VBUS regulation with low-side current sensing - deployed in PC adapters, car chargers, and power banks.

For engineers reviewing the CYPD3174-24LQXQT datasheet, CYPD3174-24LQXQT pinout, CYPD3174-24LQXQT application, or CYPD3174-24LQXQT equivalent, key selection criteria include CC-line short tolerance (±8 kV contact ESD), dual SCB peripherals (I²C/SPI/UART), integrated dead-battery RD bonding option, and 24-pin QFN package with –40°C to +105°C industrial temperature rating.

Technical Context

The device implements a BMC-encoded USB PD 3.1 physical layer with hardware collision avoidance, configurable RP/RD termination, and dedicated CC1/CC2 transceivers supporting DFP/UFP role negotiation. Its analog VBUS regulation loop uses direct feedback or optocoupler interfaces with shunt regulator functionality for precise CV/CC control.

Two independent 8-bit SAR ADCs monitor GPIO, DP/DM, and system voltages using internal bandgap or VDDD reference; dual PFET gate drivers and VBUS discharge FETs enable active path control, while on-chip OVP/OCP/UVP/SCP and VBUS-to-CC short protection (17 V continuous, 22 V/1000 h) ensure robust fault handling.

Key Specifications

Parameter	Value and Actual Design Meaning
USB PD Standard	Complies with USB PD Revision 3.1, including Programmable Power Supply (PPS) mode for fine-grained voltage/current tuning.
MCU Core	Arm® Cortex®-M0 running at up to 48 MHz; enables real-time PD policy engine execution and firmware-updatable behavior.
Flash / SRAM	64-KB flash memory with accelerator and 8-KB SRAM - sufficient for full PD stack plus proprietary charging protocols.
VBUS Regulation	Analog feedback control supports constant-voltage or constant-current output; integrates shunt regulator and low-side current sense amplifier.
ESD Protection	±8-kV contact / ±15-kV air-gap per IEC61000-4-2 Level 4C on CC1, CC2, DP0, DM0, P2.2, P2.3, and VBUS_C_MON_DISCHARGE pins.
Operating Voltage	3.0 V to 24.5 V supply range with 30-V pin tolerance - compatible with wide-input AC/DC and DC/DC front-ends.
Temperature Range	–40°C to +105°C ambient operation - validated for automotive-grade car chargers and industrial power adapters.

Pinout & Package

Package: 24-pin QFN (4 mm × 4 mm, 0.5 mm pitch), wettable flank, RoHS-compliant, with exposed thermal pad.

Pin/Terminal	Circuit Role	Design Meaning
CC1 / CC2	USB Type-C Configuration Channel	Dedicated BMC transceivers with integrated RP/RD switches and VBUS-short-tolerant input structure (17 V continuous).
DP0 / DM0	USB 2.0 Data Pair (Type-A)	Legacy charger detection interface for BC 1.2, Apple, QC 4.0, and AFC; includes internal termination and analog mux to ADC.
VBUS_P_CTRL	PFET Gate Driver Output	High-side gate drive signal for external N-channel MOSFET controlling VBUS power path.
FB	Feedback Input	Analog input for secondary-side VBUS regulation - accepts direct feedback or optocoupler output for isolated designs.
LSCSA	Low-Side Current Sense Amp Input	Differential input for shunt-based CC regulation; supports programmable gain and offset calibration.
VDDD	Digital Core Supply	1.8-V regulated supply for MCU and digital logic; generated internally from VCCD or externally supplied.

Key Features

Feature	Design Value
Dual SCB Peripherals	Two fully configurable Serial Communication Blocks supporting I²C master/slave, SPI master/slave, and UART modes - enables communication with PMICs, sensors, or host microcontrollers.
Integrated Oscillator	On-die high-precision oscillator eliminates need for external crystal or clock source - reduces BOM count and layout area in space-constrained adapters.
Dead-Battery RD Bond Option	Hardware-selectable RD resistor bonding on CC pins for power bank applications requiring sink-role detection during battery depletion - avoids external discrete resistors.
System-Level Fault Protection	Hardware-enforced OVP (21.5 V threshold), OCP (configurable via ADC), UVP, SCP, and VBUS-to-CC short recovery - reduces reliance on external protection ICs.
SWD Debug Interface	Serial Wire Debug port with four address breakpoints and two data watchpoints - enables in-system firmware development and field updates without additional debug hardware.

Applications

PC Power Adapter

Car Charger

Use Scenario: 65-W GaN-based laptop adapter with dual USB-C ports and dynamic power sharing.

IC Role / Device Role / Timing Role: Primary Type-C port controller managing PD negotiation, VBUS regulation, and safety-critical fault response.

Use Value: Integrates termination, regulation, and protection into one die - reduces component count by ≥7 vs. discrete PD+MCU+shunt solutions.

Use Scenario: 100-W dual-port automotive charger with fast transient load handling and cabin temperature resilience.

IC Role / Device Role / Timing Role: System-level PD manager coordinating with vehicle battery monitoring and thermal throttling.

Use Value: –40°C to +105°C rating and 30-V tolerant pins ensure reliable operation under cold cranking and hot ambient conditions.

Power Bank

Mobile Wall Charger

Use Scenario: 20,000-mAh portable power bank with PPS support and bidirectional charging.

IC Role / Device Role / Timing Role: Sink-mode PD controller with dead-battery RD bonding and VBUS discharge control.

Use Value: On-chip RD resistors eliminate external passives needed for USB-C sink detection during deep discharge states.

Use Scenario: Compact 30-W wall charger supporting USB-C PPS for smartphone fast charging.

IC Role / Device Role / Timing Role: Integrated PD policy engine with analog VBUS regulation and legacy charger emulation.

Use Value: Dual charger detect blocks enable universal compatibility with iOS, Android, and Windows devices without external ICs.

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
CYPD3175-24LQXQT	Same die, higher default firmware feature set (e.g., enhanced multi-port coordination); identical pinout and electrical specs.	Targeted for multi-port adapter designs requiring inter-port power arbitration.	Select when implementing >1 Type-C port with shared power budget management.
STUSB4500QTR	Standalone PD controller (no MCU core); lacks integrated ADC, TCPWM, or legacy charger detection blocks.	Suitable only for basic PD negotiation without analog regulation or proprietary charging support.	Choose only if design uses external MCU for policy engine and separate analog regulation circuitry.

Compared with CYPD3175-24LQXQT, this part offers identical hardware but ships with base firmware optimized for single-port cost-sensitive applications; versus STUSB4500QTR, it delivers full system integration - eliminating external MCU, ADC, and charger detection ICs - at the expense of higher initial firmware development effort.

Availability

CYPD3174-24LQXQT is available at Aetrix Electronics and suitable for PC power adapters, car chargers, power banks, and mobile wall chargers requiring stable component supply, long-term lifecycle support, and industrial temperature compliance.

Supply support for CYPD3174-24LQXQT 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 electronics, and security solutions, with global R&D and manufacturing infrastructure.

This device belongs to the EZ-PD™ CCG3PA product line - designed specifically for highly integrated, cost-optimized USB Type-C power delivery in consumer charging applications where BOM reduction and system-level protection are critical.

FAQ

What firmware is preloaded on CYPD3174-24LQXQT at shipment?

CYPD3174-24LQXQT ships with Infineon's standard CCG3PA base firmware supporting USB PD 3.1, PPS, and all legacy charging protocols. The firmware is field-upgradable over the CC line or SWD interface, and custom configurations can be provisioned pre-shipment upon request.

Does CYPD3174-24LQXQT require an external crystal?

No. The device integrates a precision internal oscillator that meets USB PD timing requirements without external crystals or resonators. This reduces bill-of-materials cost and PCB area, and eliminates crystal-related startup delays or frequency drift concerns across temperature.

Can CYPD3174-24LQXQT support both source and sink roles simultaneously?

No. CYPD3174-24LQXQT is configured at boot for either source (DFP) or sink (UFP) role based on firmware and bond options. Dual-role (DRP) operation requires external GPIO control and firmware coordination - not natively supported in hardware without external logic.

How is VBUS discharge implemented in this controller?

VBUS discharge is handled by two integrated FETs controlled via DISCH and DISCH1 pins. These FETs connect VBUS to ground through external resistors; discharge timing and current are programmable via firmware-controlled PWM signals driving the gate terminals.

CYPD3174-24LQXQT Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: EZ-PD™ CCG3PA

Package/Case:: 24-UFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

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)

CYPD3174-24LQXQT FAQ

1.How can I place an order for CYPD3174-24LQXQT through Aetrix?

Please submit a Request for Quotation (RFQ) for CYPD3174-24LQXQT 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 CYPD3174-24LQXQT reliable?

The price and inventory of CYPD3174-24LQXQT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYPD3174-24LQXQT is usually 5 days.

3.What payment methods are accepted for CYPD3174-24LQXQT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYPD3174-24LQXQT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CYPD3174-24LQXQT?

CYPD3174-24LQXQT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CYPD3174-24LQXQT 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 CYPD3174-24LQXQT?

For technical support, including CYPD3174-24LQXQT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYPD3174-24LQXQT requirements.

6.How does Aetrix verify that CYPD3174-24LQXQT is sourced from the original manufacturer or authorized distributors?

All CYPD3174-24LQXQT 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 CYPD3174-24LQXQT meets industry standards.

7.What is the process for return or replacement of CYPD3174-24LQXQT?

All CYPD3174-24LQXQT units undergo pre-shipment inspection (PSI). If there is an issue with CYPD3174-24LQXQT, 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 CYPD3174-24LQXQT part is unused and in its original packaging.

Return procedure for CYPD3174-24LQXQT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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