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Infineon Technologies CYPD7291-68LDXS
- Part No.:
- CYPD7291-68LDXS
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
CYPD7291-68LDXS.pdf
- Description:
- TYPE-C - AUTO
- Quantity:
- Payment:
- Shipping:
Inventory:3,666
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Product details
Overview
CYPD7291-68LDXS from Infineon is a dual-port automotive USB Type-C Power Delivery (PD) controller with integrated 2× buck-boost converters, Arm® Cortex®-M0 MCU (48 MHz, 128 KB flash), AEC-Q100-qualified 68-pin QFN package, and support for USB PD 3.2 including PPS (3.3–21.5 V, 20-mV/50-mA steps). It delivers system-level protection (VBUS OVP/OCP/UVP, VBUS-to-CC short, VBAT-to-GND short) and operates across –40°C to +105°C ambient.
For engineers reviewing the CYPD7291-68LDXS datasheet, CYPD7291-68LDXS pinout, CYPD7291-68LDXS application in infotainment or rear-seat charging, or CYPD7291-68LDXS equivalent for automotive USB PD designs, this page provides verified technical context, validated pin functions, real-world application mappings, and confirmed alternative options aligned with OEM power delivery requirements.
Technical Context
The CYPD7291-68LDXS implements two independent USB PD 3.2 PHYs with BMC encoding, configurable Rp/Rd resistors, and hardware-controlled VCONN (100 mW) for EMCA support. Each port integrates a dedicated buck-boost controller with programmable switching frequency (150–600 kHz), soft-start, spread-spectrum modulation, and phase-shift capability between ports to reduce EMI.
Its Cortex-M0 subsystem runs custom firmware for dynamic power management-including load sharing, temperature monitoring via 3× 8-bit ADCs and external thermistors, fault logging, and legacy charging detection (QC 2.0–5.0, Apple 2.4A, AFC, BC 1.2). All protection logic (VBUS OVP/OCP/UVP, VBUS-to-CC short, VBAT-to-GND short) is implemented in hardware with user-configurable thresholds and retry behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB PD Compliance | USB PD Revision 3.2, including full PPS support (3.3–21.5 V output, 20-mV voltage / 50-mA current resolution) |
| Buck-Boost Controllers | Two independent controllers; 5.5–24 V input (40-V tolerant), 3.3–21.5 V output, selectable PSM/FCCM modes |
| MCU Core | Arm® Cortex®-M0 @ 48 MHz; 128 KB flash (user-accessible), 16 KB SRAM, 32 KB ROM for drivers/crypto |
| Analog Peripherals | 3× 8-bit SAR ADCs; integrated temperature sensor + external thermistor support for board/connector thermal monitoring |
| Digital Interfaces | 4× SCBs supporting I²C/SPI/UART/LIN; 4× 16-bit TCPWMs; 19 GPIOs including 2 overvoltage-tolerant pins |
| Protection Features | Hardware-enforced VBUS OVP/OCP/UVP, VBUS-to-CC short, VBAT-to-GND short, UVLO, and thermal shutdown |
| Package & Qualification | 68-pin wettable flank QFN; AEC-Q100 Grade 2 (–40°C to +105°C ambient, 125°C junction) |
Pinout & Package
68-pin QFN package with wettable flanks, optimized for automotive reflow and automated optical inspection (AOI). Exposed thermal pad supports efficient heat dissipation in high-power dual-port charging applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1_0, CC2_0 | USB Type-C Configuration Channel | Dedicated differential pair for port 0 PD communication and plug orientation detection per USB Type-C spec |
| DP_0, DM_0 | USB 2.0 Data Lines | Full-speed USB 2.0 interface for legacy data path; not used in pure charging applications but retained for RSE use cases |
| BST1_0, HGT1_0, SW1_0, LGT1_0 | Buck-Boost Controller 0 Power Stage | High-side/low-side gate drivers and switch node for first buck-boost converter; supports up to 24 V input and 21.5 V output |
| VCONN_0 | VCONN Power Supply Output | Integrated 100-mW regulated supply for electronically marked cables; includes OCP and auto-retry on fault |
| VDDD, VCCD | Digital Core & I/O Power Rails | 1.8 V core (VDDD) and 3.3 V I/O (VCCD) supplies generated internally from 5 V LDO; decoupling required per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Dual PD Stack | Firmware-upgradable USB PD 3.2 stack with extended messaging (260-byte chunks) and PPS negotiation-enables field updates for new standards or OEM-specific policies |
| Hardware-Controlled Protection | On-die VBUS OVP/OCP/UVP with configurable thresholds and retry count; eliminates need for external protection ICs in cost-sensitive automotive modules |
| EMI-Optimized Power Conversion | Programmable spread-spectrum modulation + inter-port phase shift reduces peak EMI by >10 dB compared to fixed-frequency operation-critical for CISPR 25 Class 5 compliance |
| Automotive Thermal Management | Integrated die temperature sensor + two external thermistor inputs allow closed-loop thermal throttling across connector, PCB, and FETs-prevents derating in confined head-unit enclosures |
| Legacy Charging Compatibility | Dedicated charger detection blocks for QC 2.0–5.0, Apple 2.4A, Samsung AFC, and USB BC 1.2-ensures backward compatibility without host MCU intervention |
Applications
| Head Unit Charger | Rear Seat Charger (RSC) |
|---|---|
Use Scenario: Integrated USB-C charging port in vehicle infotainment head unit, supplying up to 100 W to smartphones/tablets while coexisting with audio/video processing. IC Role / Device Role / Timing Role: Dual-port PD controller managing VBUS arbitration, buck-boost regulation, and protocol negotiation-acts as source for both ports with priority-based power allocation. Use Value: Eliminates discrete PD controllers and external buck-boost ICs; reduces BOM count by ≥7 components and PCB area by 35% versus multi-chip solutions. | Use Scenario: Compact dual-port charger mounted under rear seat, powering passenger devices during travel with robust thermal and EMI performance. IC Role / Device Role / Timing Role: Independent port control with staggered startup and phase-shifted switching to minimize input ripple and conducted emissions in shared 12 V rail. Use Value: Enables 45 W per port (90 W total) at <15 mm² footprint; meets ISO 11452-2/4 immunity and CISPR 25 radiated emission limits without shielding. |
| Rear Seat Entertainment (RSE) | Automotive Docking Station |
Use Scenario: In-seat tablet docking system delivering power, data (USB 2.0), and video (via alternate mode negotiation) through single USB-C cable. IC Role / Device Role / Timing Role: PD controller handling structured VDMs for DisplayPort Alt Mode discovery and configuration while maintaining stable 15 V/3 A power delivery. Use Value: Integrates DP Alt Mode handshake logic and power control in one die-removes need for companion USB switch or level shifter in RSE BOM. | Use Scenario: Centralized vehicle docking station supporting simultaneous charging of multiple devices (phone, earbuds, smartwatch) with intelligent load balancing. IC Role / Device Role / Timing Role: System manager coordinating power distribution across ports using firmware-defined policies (e.g., prioritize fast-charge on port 0 when port 1 detects low-battery accessory). Use Value: Enables adaptive power throttling and fault logging via on-chip Cortex-M0-replaces external microcontroller and reduces firmware development effort by ~40%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port automotive USB PD controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STUSB4500QTR | Single-port USB PD 3.0 controller with no integrated power conversion; requires external buck-boost ICs and MCU for system management | Limited to ≤60 W per port; lacks PPS, legacy charging blocks, and thermal monitoring peripherals | Select when only basic PD 3.0 source functionality is needed and BOM cost is secondary to design simplicity |
| TPS65988DHAR | Dual-port PD 3.1 controller with integrated 5 V/3 A LDO only; buck-boost conversion must be implemented externally with TPS6598x companion ICs | No native support for QC/AFC/Apple charging; no on-die temperature sensor or thermistor interfaces | Prefer for non-automotive applications where AEC-Q100 qualification and wide-input buck-boost integration are not required |
Compared with STUSB4500QTR and TPS65988DHAR, CYPD7291-68LDXS uniquely integrates dual buck-boost converters, legacy charging detection, automotive-grade thermal sensing, and full PPS-reducing total solution size by ≥40% and eliminating 3–5 external ICs in head-unit and RSC designs.
Availability
CYPD7291-68LDXS is available at Aetrix Electronics and suitable for automotive infotainment head unit chargers, rear seat chargers, and rear seat entertainment systems requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.
Supply support for CYPD7291-68LDXS 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 manufacturing and R&D centers.
CYPD7291-68LDXS belongs to the EZ-PD™ CCG7D product line, designed specifically for automotive USB-C power delivery applications requiring high integration, functional safety readiness, and compliance with USB PD 3.2 and CISPR 25 EMI standards.
FAQ
What is the maximum continuous output power supported per port?
CYPD7291-68LDXS supports up to 45 W per port (90 W total) with its integrated buck-boost controllers operating from 5.5–24 V input. At 12 V nominal input, it delivers 20 V/2.25 A (45 W) per port with PPS fine-resolution control. Thermal derating begins above 85°C ambient unless active cooling or layout optimization is applied.
Does CYPD7291-68LDXS require an external crystal oscillator?
No. CYPD7291-68LDXS includes an integrated precision oscillator that eliminates the need for an external crystal or resonator. This reduces BOM cost and PCB area while improving reliability in automotive vibration environments. The internal oscillator supports all USB PD timing requirements, including BMC encoding jitter tolerance per USB PD 3.2 specification.
How is VBUS overvoltage protection implemented?
VBUS OVP is implemented using internal resistor dividers feeding a comparator with user-configurable threshold (typically 22.5 V) and response time (≤1 µs). Upon detection, the device disables the high-side NFET gate driver within 200 ns and initiates controlled VBUS discharge via integrated discharge FETs. Recovery requires physical disconnect and reconnect of the USB-C cable.
Can the Cortex-M0 firmware be updated in-system?
Yes. Firmware updates are performed via SWD interface using Infineon's ModusToolbox™ and EZ-PD™ Configuration Utility. The bootloader supports secure firmware updates over I²C or UART, with signature verification and rollback protection. Field updates preserve customer-specific configurations stored in protected flash sectors.
CYPD7291-68LDXS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- EZ-PD™ CCG7D
- Package/Case:
- 68-VFQFN 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:
- 19
- Voltage - Supply:
- 4V ~ 24V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 68-QFN (10x10)
CYPD7291-68LDXS FAQ
1.How can I place an order for CYPD7291-68LDXS through Aetrix?
Please submit a Request for Quotation (RFQ) for CYPD7291-68LDXS 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 CYPD7291-68LDXS reliable?
The price and inventory of CYPD7291-68LDXS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYPD7291-68LDXS is usually 5 days.
3.What payment methods are accepted for CYPD7291-68LDXS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYPD7291-68LDXS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYPD7291-68LDXS?
CYPD7291-68LDXS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYPD7291-68LDXS 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 CYPD7291-68LDXS?
For technical support, including CYPD7291-68LDXS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYPD7291-68LDXS requirements.
6.How does Aetrix verify that CYPD7291-68LDXS is sourced from the original manufacturer or authorized distributors?
All CYPD7291-68LDXS 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 CYPD7291-68LDXS meets industry standards.
7.What is the process for return or replacement of CYPD7291-68LDXS?
All CYPD7291-68LDXS units undergo pre-shipment inspection (PSI). If there is an issue with CYPD7291-68LDXS, 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 CYPD7291-68LDXS part is unused and in its original packaging.
Return procedure for CYPD7291-68LDXS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYPD7291-68LDXS Tags
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CYPD3175-24LQXQ
Infineon Technologies
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SLB9672VU20FW1523XTMA1
Infineon Technologies
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SLB9670VQ20FW785XTMA1
Infineon Technologies
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SLB9672XU20FW1523XTMA1
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SLB9673XU20FW2613XTMA1
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AT97SC3204-U2A1A-20
Microchip Technology
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AT97SC3204-U2A1A-10
Microchip Technology
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SLM9670AQ20FW1311XTMA1
Infineon Technologies
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SLB9672XU20FW1613XTMA1
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SLB9672AU20FW1613XTMA1
Infineon Technologies
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SLB9673AU20FW2613XTMA1
Infineon Technologies
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