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

Infineon Technologies CYPD3173P-24LQXQ

Name: CYPD3173P-24LQXQ
Brand: Infineon Technologies
SKU: CYPD3173P-24LQXQ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CYPD3173P-24LQXQ

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

Package:: 24-UFQFN Exposed Pad

Datasheet:: CYPD3173P-24LQXQ.pdf

Description:: CCG3PA-NFET

Quantity:: RFQ Add To RFQ list

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Product details

Overview

CYPD3173P-24LQXQ from Infineon Technologies (formerly Cypress) is a USB Type-C port controller with integrated NFET gate driver, designed for secondary-side feedback control in USB PD 3.0 PPS and QC4+ power adapters. It delivers independent constant voltage (3.3–21 V) and constant current (1–3 A) regulation, integrates BMC transceiver, LSCSA, dual error amplifiers, and supports opto-coupler or direct feedback architectures.

For engineers reviewing the CYPD3173P-24LQXQ datasheet, CYPD3173P-24LQXQ pinout, CYPD3173P-24LQXQ application, or CYPD3173P-24LQXQ equivalent, key selection criteria include VBUS_IN input range (3.3–21.5 V), EA_OUT-driven opto feedback capability, CC/PPS protocol compliance, integrated 5 mΩ-sense LSCSA, and 24-QFN package thermal performance at –40 °C to +105 °C.

Technical Context

The device implements two independent analog control loops: one CV error amplifier (FB/EА_OUT, 0.744 V reference) and one CC error amplifier (CC_COMP_GPIO2/LSCSA), each driving proportional current through EA_OUT for primary-side regulation. It embeds a full BMC PHY with Rp termination switching and collision-avoidance logic for USB PD 2.0/3.0/PPS communication on CC1/CC2.

Its high-voltage regulator accepts VBUS_IN from 3.3 V to 21.5 V and generates VDDD (5 V or VBUS_IN – 300 mV), which powers internal blocks and feeds a 1.8 V VCCD LDO. The NFET gate driver on VBUS_CTRL delivers VBUS_IN + 8 V clamp-limited output to drive external load switches.

Key Specifications

Parameter	Value and Actual Design Meaning
USB PD Support	PD 2.0, PD 3.0 with Programmable Power Supply (PPS) compliant BMC transceiver and protocol engine
CV Regulation Range	3.3 V to 21 V output via FB/EА_OUT opto or direct feedback; 0.744 V internal reference with 200 kΩ/35 kΩ divider
CC Regulation Range	1 A to 3 A using integrated LSCSA (CSP/CSN) with 5–150× gain and active offset cancellation
VIN Range	VBUS_IN: 3.3 V to 21.5 V; enables single-chip operation across 5 V–20 V adapter inputs without external regulators
Gate Driver Output	VBUS_CTRL drives external NFET gate to VBUS_IN + 8 V (clamped), enabling high-side switch control with fast turn-on/turn-off
Operating Temperature	–40 °C to +105 °C industrial grade; validated for continuous operation in enclosed power adapter environments
Package	24-pin QFN (4 mm × 4 mm, 0.5 mm pitch); EPAD-connected ground for thermal dissipation in compact adapters

Pinout & Package

Supplied in a thermally enhanced 24-pin QFN package (4 mm × 4 mm, 0.5 mm pitch) with exposed pad (EPAD) for ground connection and improved heat transfer in sealed power adapter enclosures.

Pin/Terminal	Circuit Role	Design Meaning
VSS (Pins 2, 15)	Ground reference	Dual ground pins reduce impedance for analog and digital return paths; EPAD provides additional low-inductance ground path
CC1 / CC2 (Pins 14, 13)	USB PD Configuration Channel	Integrated BMC transceiver with programmable Rp termination; requires external 390 pF capacitor per pin
FB / EA_OUT (Pins 9, 8)	CV error amplifier interface	FB = 0.744 V reference node; EA_OUT sinks/sourses current proportional to CV error for opto-coupler or resistor-divider feedback
CSP / CSN (Pins 11, 10)	LSCSA inputs	High-accuracy current sense inputs supporting 5 mΩ shunt; internal gain selectable for 1–3 A CC range
VBUS_CTRL (Pin 19)	NFET gate driver output	Drives external high-side NFET gate to VBUS_IN + 8 V (clamped); enables precise VBUS switching control
VBUS_C (Pin 18)	VBUS monitor input	Analog-sensed VBUS at Type-C connector; used for OVP/UVP and feedback loop monitoring
GPIO0–GPIO3 (Pins 5, 6, 12, 3)	Configurable I/O	Four dedicated GPIOs (plus DP_GPIO5/DM_GPIO4 multiplexed) support temperature sensing, status signaling, or custom logic

Key Features

Feature	Design Value
Dual independent error amplifiers	Separate CV and CC regulation paths enable simultaneous precision control of output voltage and current per USB PD PPS requirements
Integrated LSCSA with offset cancellation	5–150× programmable gain and active calibration ensure ±1% current sense accuracy over temperature for reliable CC mode
Opto-coupler or direct feedback support	EA_OUT current-source/sink architecture works with standard opto-isolators or resistor dividers-no external op-amps required
Full USB PD transceiver with collision avoidance	BMC encoder/decoder, Rp/Rd switching, and half-duplex arbitration eliminate need for external PHY or discrete termination resistors
6 GPIOs with flexible configuration	GPIO0–GPIO3 + DP_GPIO5/DM_GPIO4 allow system-level functions like thermal shutdown, LED indication, or legacy charger detection

Applications

USB PD 3.0 PPS Adapter

Quick Charge 4.0 Wall Charger

Use Scenario: Compact 45 W laptop adapter dynamically adjusting output from 5 V/3 A to 20 V/2.25 A under USB PD 3.0 PPS negotiation.

IC Role / Device Role / Timing Role: Secondary-side port controller executing real-time CV/CC regulation, BMC communication, and VBUS switching via NFET gate driver.

Use Value: Eliminates external error amplifiers, current sense ICs, and discrete PD PHY-reducing BOM count by ≥7 components versus discrete solutions.

Use Scenario: Multi-protocol wall charger delivering up to 28 W to smartphones using QC4+ while maintaining USB BC 1.2 and Apple charging compatibility.

IC Role / Device Role / Timing Role: Legacy charge detect block on DP_GPIO5/DM_GPIO4 identifies proprietary protocols; CC1/CC2 handle PD fallback negotiation.

Use Value: Single-chip support for 7+ charging standards avoids firmware complexity and PCB space penalty of dual-controller designs.

Universal Travel Adapter

Industrial USB-C Power Module

Use Scenario: Dual-input (AC/DC) travel adapter accepting 100–240 V AC or 12 V DC input, delivering 5–20 V PPS output via single secondary-side controller.

IC Role / Device Role / Timing Role: High-voltage regulator (VBUS_IN: 3.3–21.5 V) enables direct use of unregulated DC bus; VBUS_CTRL drives robust NFET for universal input handling.

Use Value: Input voltage flexibility reduces need for auxiliary bias rails-simplifying design for multi-source power systems.

Use Scenario: DIN-rail mounted 60 W USB-C power module for factory automation, powering vision cameras and PLC interfaces with strict thermal limits.

IC Role / Device Role / Timing Role: Integrated OTP, OCP, SCP, UVP, and OVP protection circuits autonomously shut down VBUS within <10 µs during fault events.

Use Value: Self-contained protection eliminates external supervisor ICs and reduces failure modes in mission-critical embedded power supplies.

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	Single-channel USB PD 3.0 controller without integrated LSCSA or NFET gate driver; requires external current sense amplifier and MOSFET driver	Targeted at cost-sensitive, lower-power (≤30 W) adapters where CC regulation is not required	Select when BOM cost is prioritized over integration and CC/PPS capability is unnecessary
MPQ4282GQ-A	Monolithic USB PD 3.0 controller with integrated buck converter; lacks independent CC regulation and opto-feedback EA_OUT architecture	Designed for primary-side regulated, fixed-output adapters-not suitable for secondary-side PPS or variable CC applications	Select only for fixed-output, non-PPS designs where integrated DC-DC replaces external flyback controller

Compared with STUSB4500QTR and MPQ4282GQ-A, CYPD3173P-24LQXQ uniquely combines secondary-side PPS-compliant CV/CC regulation, opto-coupler-ready EA_OUT, and NFET gate driving in one 24-QFN package-enabling compact, high-fidelity USB PD 3.0 PPS adapter designs without external analog signal conditioning.

Availability

CYPD3173P-24LQXQ is available at Aetrix Electronics and suitable for USB PD 3.0 PPS power adapters, Quick Charge 4.0 wall chargers, and industrial USB-C power modules requiring stable component supply, long-term lifecycle support, and qualified automotive-grade thermal performance.

Supply support for CYPD3173P-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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and connectivity solutions with emphasis on energy efficiency and reliability.

CYPD3173P-24LQXQ belongs to Infineon's EZ-PD™ CCG3PA product line, engineered specifically for high-integration, secondary-side controlled USB Type-C power adapters supporting USB PD 3.0 PPS, QC4+, and multi-protocol charging.

FAQ

What feedback topologies does CYPD3173P-24LQXQ support?

CYPD3173P-24LQXQ supports both opto-coupler-based and direct resistor-divider feedback. Its EA_OUT pin sources or sinks current proportional to CV or CC error, driving standard PC817/PC818 opto-isolators. For direct feedback, internal IDACs adjust the FB node voltage to regulate VBUS without isolation components.

Does CYPD3173P-24LQXQ require external termination resistors on CC1/CC2?

No. CYPD3173P-24LQXQ integrates all USB PD-compliant Rp and Rd termination resistors with programmable switching. Only a 390 pF capacitor is required externally on each CC pin for ESD filtering and signal integrity-no pull-up/down resistors needed.

Can CYPD3173P-24LQXQ regulate both voltage and current simultaneously?

Yes. It uses two independent analog control loops: one CV error amplifier (FB/EА_OUT) and one CC error amplifier (CC_COMP_GPIO2/LSCSA). These operate concurrently to maintain precise output voltage and current per USB PD PPS specifications, with seamless transition between CV and CC modes.

What is the maximum VBUS_IN voltage the internal HV regulator can accept?

The internal HV regulator accepts VBUS_IN up to 21.5 V. At inputs from 5.5 V to 21.5 V, it delivers a stable 5 V VDDD output. Below 5.5 V, VDDD = VBUS_IN – 300 mV. This allows operation across common adapter intermediate bus voltages without external regulators.

CYPD3173P-24LQXQ Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: EZ-PD™

Package/Case:: 24-UFQFN Exposed Pad

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Applications:: Power Adaptor

Core Processor:: ARM® Cortex®-M0

Program Memory Type:: FLASH (64kB)

Controller Series:: CYPD3x

RAM Size:: 4K x 8

Interface:: PWM

Number of I/O:: 6

Voltage - Supply:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 24-QFN (4x4)

CYPD3173P-24LQXQ FAQ

1.How can I place an order for CYPD3173P-24LQXQ through Aetrix?

Please submit a Request for Quotation (RFQ) for CYPD3173P-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 CYPD3173P-24LQXQ reliable?

The price and inventory of CYPD3173P-24LQXQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYPD3173P-24LQXQ is usually 5 days.

3.What payment methods are accepted for CYPD3173P-24LQXQ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYPD3173P-24LQXQ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CYPD3173P-24LQXQ?

CYPD3173P-24LQXQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CYPD3173P-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 CYPD3173P-24LQXQ?

For technical support, including CYPD3173P-24LQXQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYPD3173P-24LQXQ requirements.

6.How does Aetrix verify that CYPD3173P-24LQXQ is sourced from the original manufacturer or authorized distributors?

All CYPD3173P-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 CYPD3173P-24LQXQ meets industry standards.

7.What is the process for return or replacement of CYPD3173P-24LQXQ?

All CYPD3173P-24LQXQ units undergo pre-shipment inspection (PSI). If there is an issue with CYPD3173P-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 CYPD3173P-24LQXQ part is unused and in its original packaging.

Return procedure for CYPD3173P-24LQXQ:

1.Submit a request within 90 days.

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

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