Infineon Technologies CYPD7299-68LDXS

Overview

CYPD7299-68LDXS from Infineon Technologies is an AEC-Q100 qualified dual-port USB Type-C Power Delivery (PD) controller with integrated 2× buck-boost regulators, Arm® Cortex®-M0 MCU (48 MHz, 128 KB flash), and hardware-based VBUS protection. It delivers programmable PPS (3.3–21.5 V, 20-mV/50-mA steps), supports USB PD 3.2, and operates across automotive ambient temperatures (–40°C to +105°C). Used in infotainment head unit chargers and rear-seat entertainment systems.

For engineers reviewing the CYPD7299-68LDXS datasheet, CYPD7299-68LDXS pinout, CYPD7299-68LDXS application, or CYPD7299-68LDXS equivalent, key selection criteria include dual-port PPS regulation capability, integrated 48-MHz Cortex-M0 for custom power management firmware, AEC-Q100 qualification, 4–24 V input (40-V tolerant), and wettable-flank 68-pin QFN packaging for automotive reflow inspection.

Technical Context

The CYPD7299-68LDXS implements two independent USB PD 3.2 PHYs with BMC encoding, configurable Rp/Rd resistors, and integrated VCONN (100 mW) supply with OCP. Each port includes dedicated CC logic, charger detection for BC1.2/Apple/QC/AFC, and hardware-enforced VBUS fault protection (OVP/OCP/UVP/SCP/VBUS-to-CC short).

Its dual buck-boost controllers operate from 150–600 kHz with selectable PSM/FCCM modes, soft-start, spread-spectrum modulation, and programmable phase shift between ports to reduce EMI. Output regulation supports 3.3–21.5 V at 20-mV voltage and 50-mA current resolution for PPS compliance.

Key Specifications

Pinout & Package

68-pin QFN (7 mm × 7 mm, 0.4 mm pitch) with wettable flank leads, optimized for automotive reflow and AOI. Pinout verified per Infineon datasheet 002-28172 Rev. *O (pages 17–21).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-port automotive USB PD controller applications.

Compared with STUSB4500QTR and TPS65988DHAR, CYPD7299-68LDXS uniquely combines AEC-Q100 qualification, dual independent PPS-capable buck-boost controllers, and a user-programmable Cortex-M0 - enabling fully autonomous, thermally adaptive, and safety-compliant automotive charging without external MCUs or protection ICs.

Availability

CYPD7299-68LDXS is available at Aetrix Electronics and suitable for automotive head unit chargers, rear seat entertainment systems, and vehicle docking stations requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.

Supply support for CYPD7299-68LDXS 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 automotive qualification expertise.

The EZ-PD™ CCG7D product line is designed specifically for automotive USB-C power delivery applications, integrating PD protocol stacks, buck-boost regulation, and MCU-based system management into a single AEC-Q100 qualified device.

FAQ

What is the maximum continuous output current per port?

The CYPD7299-68LDXS does not define a fixed maximum current in its datasheet; instead, it supports up to 5 A per port when paired with appropriately rated external FETs and inductors. Current limit is set via firmware-controlled current-sense amplifier gain and ADC thresholds, allowing flexible configuration for 3 A, 4.5 A, or 5 A operation depending on thermal design and component selection.

Does it support USB-C cable orientation detection?

Yes - the device integrates configurable Rp and Rd resistors on both CC1 and CC2 lines per port, enabling automatic plug orientation detection and source/sink role establishment per USB Type-C specification. The hardware automatically selects the active CC line based on physical connection, with no firmware intervention required for basic detection.

Can the Cortex-M0 be used to implement custom communication protocols?

Yes - the 128-KB flash and 16-KB SRAM provide ample space for customer firmware implementing custom protocols over the four SCB interfaces (I²C/SPI/UART/LIN). Example implementations include LIN-based thermal reporting to body control modules or SPI-based communication with display timing controllers.

Is external crystal required for operation?

No - the device includes a fully integrated oscillator that meets USB PD timing accuracy requirements. An external crystal is optional and only needed if higher clock precision (e.g., <±100 ppm) is required for specific LIN or audio synchronization use cases; default internal oscillator achieves ±1.5% accuracy across temperature.