Product Overview The TUSB4041I device is a four-port USB 2.0 hub. This device provides a USB high-speed or full-speed connection on the upstream port. It also provides USB high-speed, full-speed, or low-speed connections on the downstream ports. When the upstream port is connected to an electrical environment that only supports high-speed, full-speed, and low-speed connections, the downstream ports enable USB high-speed, full-speed, and low-speed connections. When the upstream port is connected to an electrical environment that only supports full-speed or low-speed connections, the downstream ports disable USB high-speed connections. The TUSB4041I device supports per-port or ganged power switching and overcurrent protection. This device also supports battery charging applications. A hub with per-port power control turns the power on or off for each downstream port based on the USB host’s requirements. Additionally, when an overcurrent event is detected on a port, only the affected downstream port's power is cut off. A hub with ganged power control supplies power to all downstream ports when any port requires power. The power to the downstream ports is not cut off unless all ports are in a state that allows power removal. Furthermore, when a ganged power-controlled hub detects an overcurrent event, it cuts off power to all downstream ports. The downstream ports of the TUSB4041I device support battery charging applications by providing USB Battery Charging Downstream Port (CDP) handshake support. When the upstream port is not connected, the device also supports Dedicated Charging Port (DCP) mode. DCP mode complies with the USB Battery Charging Specification and the China Communications Industry Standard YD/T 1591-2009. Additionally, autonomous mode provides transparent support for BC devices and charging solutions that support the divider mode when the upstream port is not connected. The TUSB4041I device supports certain features through pin-strapping, including battery charging support, and also provides customization of PID, VID, and port and PHY configurations via OTP ROM, I2C EEPROM, or I2C and SMBus slave interfaces. Custom strings are also supported when using the I2C EEPROM or I2C and SMBus slave interfaces. This device is offered in a 64-pin PAP package and is available in an industrial version operating over a temperature range of -40°C to 85°C.

Product Features Four-Port USB 2.0 Hub USB 2.0 hub with Multiple Transaction Translators (MTT): Four transaction translators Each transaction translator has four asynchronous endpoint buffers Supports USB battery charging CDP mode (upstream port connected) DCP mode (upstream port not connected) DCP mode complies with China Communications Industry Standard YD/T 1591-2009 Supports D+ and D- voltage divider mode Per-port or combined power switching and overcurrent notification input OTP ROM, serial EEPROM, or I2C and SMBus slave interface for custom configuration: VID and PID Customizable ports Manufacturer and product strings (not provided by OTP ROM) Serial number (not provided by OTP ROM) Application feature selection via pin-strapping or EEPROM, I2C, or SMBus slave interface Provides a 128-bit globally unique identifier (UUID) Supports onboard and in-system OTP and EEPROM programming via USB 2.0 upstream port Single clock input, 24 MHz crystal or oscillator DM/DP polarity swap Type C compatible No special drivers required; works seamlessly on any OS with USB stack support 64-pin HTQFP package (PAP) Applications Computer systems Docking stations Monitors Set-top boxes