Universal Serial Bus

* EZ-USB™ HX3PD is the industry's first 7-port USB 3.1 Gen 2 Type-C Hub with USB Power Delivery 3.0 (PD 3.0), supporting five downstream USB 3.1 Gen 2 ports (three Type-C ports and two Type-A ports) and two downstream USB 2.0 ports. HX3PD is CYPRESS™ most integrated USB hub, integrating a dual-port PD 3.0 controller (which provides PD 3.0 on one US and one DS Type-C port), a 7-port hub, and a Dock Management controller reducing Bill of Material (BOM) cost and solution footprint, making it ideal for USB Type-C docks, monitors, and standalone hubs.
* EZ-PD™ CCG4 Monitor/Dock Solution enables connectivity between a USB Type-C host system on the upstream port and multiple display and data devices on the downstream port. This solution has a USB Type-C receptacle on the upstream port which supports data, power, and display. On the downstream port, this solution supports one USB 3.0 Type-C (display, power, and data) port, three USB 3.0 Type-A ports, two USB 2.0 Type-A ports, one HDMI, and a Gigabit Ethernet port.
* EZ-USB™ HX3C is CYPRESS™ USB 3.0 compliant Hub-controller with Type-C and USB Power Delivery 2.0 supporting three downstream USB 3.0 ports (one Type-C and two Type-A). As HX3C does not support the latest USB and Power Delivery standards (PD 3.0), it is not recommended for new designs. More @here

If you have any further questions, please submit your request via the Infineon myCases portal. This is a direct channel to get fast and easy support for your needs.
To register, Click on "Register for myInfineon” available at the top right corner of the Infineon homepage and follow the instructions.
To take advantage of additional benefits we recommend to register your corporate email address.
To log-in, click on “Login to myInfineon”.
By clicking on the My Cases link, you will be guided to the My Cases Customer Portal.
You can visit the link directly through: https://mycases.infineon.com.

If any questions, please contact our hotline, https://www.infineon.com/call

All you need to know about EZ-USB™ HX3 I2C Slave Mode Operation can be found here.

VBUS_US (pin 17) and VBUS_DS (pin 18) can be powered anytime even if both 3.3 V and 1.2 V power domains are not powered. There is no specific power-up sequencing required for VBUS_US.

Note: The pin voltage changes take effect in Apple Charging sequence only when the Hub reads the status of the pin. The Hub reads the status at bootup and after a power cycling/reset. See AN92554 Implementing Battery Charging Features Using HX3 for details on the Apple Charging sequence. More @here.

The 28-pin package has one PWR# pin and four OVR#[n] pins. When used in Individual mode, the PWR# pin is reserved for Port 1 only. This implies that the PWR# pin will be toggled only if there is an overcurrent condition on Port 1, i.e. if OVR#[1] is toggled and will not be toggled for overcurrent conditions on Port 2, Port 3 and Port 4. So, polyfuses can be used instead of power switches with the OVR# pins to control each VBUS as in the CY4608 / CY4608M DVK schematic. More @here

No, you do not need pull-up resistors to connect the TEST/I2C_SCL pin. TEST/I2C_SCL is a multipurpose pin. If this pin has a pull-up resistor, HX2VL enters TEST mode after RESET is de-asserted (from RESET=0 to RESET=1). HX2VL controls the TEST/I2C and SDA pins to ensure that the I2C protocol spec is followed.

Infineon recommends that you connect the TEST/I2C_SCL pin to the SCL of another IC on the schematic, without the pull-up resistor. HX2VL DVK designs that do not use pull-up resistors have been tested and verified.

The best way to reach out to our Applications Engineers is through our Infineon Developer Community
Our Applications Engineers moderate the community to ensure all questions are answered quickly and accurately, either by others in the community or by our own engineers.

If you have any further questions, please submit your request via the Infineon myCases portal. This is a direct channel to get fast and easy support for your needs.
To register, Click on "Register for myInfineon” available at the top right corner of the Infineon homepage and follow the instructions.
To take advantage of additional benefits we recommend to register your corporate email address.
To log-in, click on “Login to myInfineon”.
By clicking on the My Cases link, you will be guided to the My Cases Customer Portal.
You can visit the link directly through: https://mycases.infineon.com.

If any questions, please contact our hotline, https://www.infineon.com/call.