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

Infineon Technologies CYPD7191-40LDXS

Name: CYPD7191-40LDXS
Brand: Infineon Technologies
SKU: CYPD7191-40LDXS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CYPD7191-40LDXS

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

Package:: 40-UFQFN Exposed Pad

Datasheet:: CYPD7191-40LDXS.pdf

Description:: TYPE-C - AUTO

Quantity:: RFQ Add To RFQ list

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Inventory:4,985

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Product details

Overview

CYPD7191-40LDXS from Infineon is an AEC-Q100 Grade 2 qualified, single-port USB-C Power Delivery (PD) controller with integrated buck-boost DC-DC converter and 48 MHz Arm® Cortex®-M0 MCU. It delivers programmable PPS/AVS output (3.3–21.5 V, 20 mV/50 mA steps), supports 4–24 V input (40 V tolerant), and integrates four switching FETs in a 40-pin LGA wettable flank package for automotive head unit and rear-seat chargers.

For engineers reviewing the CYPD7191-40LDXS datasheet, CYPD7191-40LDXS pinout, CYPD7191-40LDXS application, or CYPD7191-40LDXS equivalent, this device enables full USB PD 3.2 compliance-including legacy QC/Apple/Samsung charging-while providing on-chip fault protection (VBUS OVP/OCP/UVP, CC short, thermal monitoring), programmable spread-spectrum EMI reduction, and custom system management via 128 KB flash and dual 8-bit ADCs.

Technical Context

The CYPD7191-40LDXS implements a fully hardware-managed USB PD PHY with BMC encoding/decoding, integrated VCONN power (100 mW), and dual CC line support. Its buck-boost subsystem operates across three regions-buck, boost, and two buck-boost modes-with cycle-by-cycle current sensing, zero-crossing detection, and selectable PSM/FCCM control.

The MCU subsystem runs at 48 MHz with dedicated peripherals: three SCBs supporting I²C/SPI/UART/LIN, eight TCPWM blocks, 13 GPIOs (including two overvoltage-tolerant pins), and internal temperature sensing plus external thermistor interface for board-level thermal management in automotive ambient conditions (–40°C to +105°C).

Key Specifications

Parameter	Value and Actual Design Meaning
USB PD Compliance	USB PD 3.2 with PPS and AVS modes; enables precise voltage/current negotiation for fast-charging smartphones and tablets
Input Voltage Range	4 V–24 V with 40 V absolute max tolerance; supports wide automotive battery rail variation including load dump
Output Voltage Range	3.3 V–21.5 V programmable in 20 mV steps; meets USB PD PPS specification for adaptive charging
Switching Frequency	150 kHz–600 kHz, programmable with spread-spectrum modulation; reduces EMI in noise-sensitive vehicle cabins
Integrated FETs	Four internal switching FETs (2 buck + 2 boost); eliminates external MOSFETs and gate drivers, reducing BOM count by ≥6 components
MCU Resources	Arm Cortex-M0 @ 48 MHz, 128 KB flash (user-accessible), 16 KB SRAM, 32 KB ROM; hosts full PD stack and custom power management firmware
Protection Features	Hardware-enforced VBUS OVP/OCP/UVP, VBUS-to-CC short protection, VBAT-to-GND short protection, UVLO, and thermal shutdown via internal sensor or external thermistors

Pinout & Package

Package: 40-pin LGA, wettable flank, AEC-Q100 qualified, footprint optimized for automotive PCB assembly and automated optical inspection (AOI).

Pin/Terminal	Circuit Role	Design Meaning
CC1 / CC2	USB Type-C Configuration Channel	Dual bidirectional BMC PHY interfaces for cable orientation detection and PD communication
VBUS_CTRL	VBUS Gate Driver Control Output	Drives external NFET for VBUS sourcing; supports soft-start and discharge control
VCONN	VCONN Power Switch Output	Provides regulated 5 V @ 100 mW to active cables; includes OCP and discharge path
BST1 / BST2	Bootstrap Capacitor Nodes	Supply high-side gate drivers for integrated buck and boost FETs; require external 100 nF ceramic capacitors
HG1FET / LG1FET / HG2FET / LG2FET	Integrated FET Gate Drivers	Direct drive signals for all four internal switching FETs; no external drivers needed
CSPI / CSNO / CSPO	Current Sense Inputs	High-side current sense amplifier inputs for buck and boost paths; enable cycle-by-cycle OCP
SW1 / SW2	Switch Node Terminals	Connect to external inductors and capacitors; define buck-boost power stage topology
ADC0 / ADC1	Analog Input Channels	Support thermistor-based temperature monitoring of connector and PCB; 8-bit resolution, 1 MS/s sampling

Key Features

Feature	Design Value
Programmable Spread-Spectrum Modulation	Reduces peak EMI by >10 dB across 150–600 kHz range without external filters, easing CISPR 25 Class 5 compliance
Integrated Four-Switch Buck-Boost	Eliminates need for external MOSFETs, gate drivers, and associated level-shifters-reducing solution size by ~35% vs discrete designs
Hardware-Based VBUS Protection	On-die OVP (24.5 V threshold), OCP (programmable 0.5–5 A), UVP (3.8 V), and VBUS-to-CC short detection respond in <1 µs
Automotive-Grade Thermal Management	Internal junction temperature sensor + two ADC channels for external NTC thermistors enable closed-loop thermal throttling per AEC-Q100 requirements
Multi-Protocol Legacy Charging Support	Hardware-accelerated detection and handshake for QC 2.0/3.0/4.0/5.0, Apple 2.4A, Samsung AFC, and USB BC 1.2-no firmware overhead

Applications

Head Unit (HU) Charger

Rear Seat Charger (RSC)

Use Scenario: Integrated 12 V–24 V automotive head unit powering USB-C devices with fast charging.

IC Role / Device Role / Timing Role: USB PD controller, buck-boost regulator, and system manager handling power negotiation, voltage conversion, and thermal safety.

Use Value: Delivers up to 100 W PPS output with real-time load sharing and fault logging, meeting OEM head unit space and reliability targets.

Use Scenario: Compact rear-seat USB-C port delivering adaptive charging in passenger compartments.

IC Role / Device Role / Timing Role: Single-chip PD + DC-DC solution managing variable input (12 V battery), dynamic load, and cabin temperature constraints.

Use Value: Enables 21.5 V PPS output at 5 A with integrated thermal monitoring-eliminating discrete thermal sensors and reducing bill-of-materials.

Rear Seat Entertainment (RSE)

Automotive Docking Station

Use Scenario: Powering USB-C monitors, tablets, or streaming devices from vehicle infotainment systems.

IC Role / Device Role / Timing Role: Dual-role PD controller supporting both source and sink negotiation while regulating stable 15 V/3 A output.

Use Value: Supports AVS mode for low-noise video delivery and uses spread-spectrum PWM to minimize interference with HDMI/MIPI signals.

Use Scenario: Multi-device docking station with simultaneous USB-C PD, data, and accessory power in EVs or premium vehicles.

IC Role / Device Role / Timing Role: Primary PD controller coordinating power allocation between ports using firmware-defined policies.

Use Value: Leverages 128 KB flash and LIN/I²C interfaces to implement custom power arbitration logic and firmware-updatable charging profiles.

Equivalent & Alternatives

The following parts are listed as comparable options for similar single-port USB-C PD with integrated buck-boost controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STUSB4500QTR	Standalone PD controller only-no integrated DC-DC; requires external buck-boost IC and FETs	Limited to lower-power (<30 W) applications due to lack of integrated power stage	Select when system already includes a separate high-efficiency DC-DC stage and firmware flexibility is prioritized over integration
MPQ4282-AEC1	Dedicated AEC-Q100 buck-boost IC-no PD protocol stack, no MCU, no CC PHY	Suitable only as power stage companion; requires external PD controller (e.g., CYPD3177) for full USB-C functionality	Select when separating protocol and power functions improves design reuse or enables independent qualification of subsystems

Compared with STUSB4500QTR and MPQ4282-AEC1, CYPD7191-40LDXS uniquely combines full USB PD 3.2 stack, four-switch buck-boost regulation, and automotive-grade protection in one die-reducing component count by ≥12 parts and enabling certified 100 W charging in a single 6 mm × 6 mm LGA package.

Availability

CYPD7191-40LDXS is available at Aetrix Electronics and suitable for automotive head unit chargers, rear seat entertainment systems, and in-vehicle docking stations requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.

Supply support for CYPD7191-40LDXS 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 security solutions, with global R&D and manufacturing infrastructure.

The EZ-PD™ CCG7S product line delivers fully integrated, AEC-Q100 qualified USB-C PD controllers targeting automotive charging applications where space, reliability, and functional safety are critical.

FAQ

What is the maximum continuous output power supported by CYPD7191-40LDXS?

CYPD7191-40LDXS supports up to 100 W (20 V/5 A) output under USB PD 3.2 PPS mode with proper thermal design and external passive component selection. Its integrated four-FET buck-boost stage, 40 V input tolerance, and hardware OCP ensure sustained operation within AEC-Q100 Grade 2 ambient limits (–40°C to +105°C).

Does CYPD7191-40LDXS require an external crystal oscillator?

No. CYPD7191-40LDXS includes an integrated precision IMO (Internal Main Oscillator) that eliminates the need for an external crystal. The IMO provides stable 48 MHz clocking for the Cortex-M0 core and USB PD PHY, meeting USB timing jitter requirements without additional components or layout area.

How is firmware updated in the field for CYPD7191-40LDXS?

Firmware updates are performed via bootloader using CC line (USB PD BMC), I²C, or LIN interfaces-no SWD debugger required in production. The device supports secure authenticated updates with signature verification, and the bootloader resides in protected ROM to prevent corruption during power loss or reset events.

Can CYPD7191-40LDXS operate without external MOSFETs?

Yes. Unlike earlier CCG generations, CYPD7191-40LDXS integrates all four switching FETs (two buck, two boost) on-die. This eliminates external high-side/low-side MOSFETs, gate drivers, bootstrap diodes, and associated routing-enabling a complete USB-C PD charger in under 25 mm² PCB area.

CYPD7191-40LDXS Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: EZ-PD™ CCG7D

Package/Case:: 40-UFQFN Exposed Pad

Packaging:: Tray

Product Status:: Active

Programmable:: -

Applications:: USB Type C

Core Processor:: ARM® Cortex®-M0

Program Memory Type:: FLASH (128kB), ROM (32kB)

Controller Series:: EZ-PD™

RAM Size:: 16K x 8

Interface:: I2C, SPI, UART, USB

Number of I/O:: 13

Voltage - Supply:: 4V ~ 24V

Operating Temperature:: -40°C ~ 105°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: 40-QFN (6x6)

CYPD7191-40LDXS FAQ

1.How can I place an order for CYPD7191-40LDXS through Aetrix?

Please submit a Request for Quotation (RFQ) for CYPD7191-40LDXS 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 CYPD7191-40LDXS reliable?

The price and inventory of CYPD7191-40LDXS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYPD7191-40LDXS is usually 5 days.

3.What payment methods are accepted for CYPD7191-40LDXS?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYPD7191-40LDXS transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CYPD7191-40LDXS?

CYPD7191-40LDXS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CYPD7191-40LDXS 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 CYPD7191-40LDXS?

For technical support, including CYPD7191-40LDXS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYPD7191-40LDXS requirements.

6.How does Aetrix verify that CYPD7191-40LDXS is sourced from the original manufacturer or authorized distributors?

All CYPD7191-40LDXS 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 CYPD7191-40LDXS meets industry standards.

7.What is the process for return or replacement of CYPD7191-40LDXS?

All CYPD7191-40LDXS units undergo pre-shipment inspection (PSI). If there is an issue with CYPD7191-40LDXS, 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 CYPD7191-40LDXS part is unused and in its original packaging.

Return procedure for CYPD7191-40LDXS:

1.Submit a request within 90 days.

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

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