ZHCSCN9E June 2014 – June 2016 TUSB8041
PRODUCTION DATA.
- 1 特性
- 2 應(yīng)用
- 3 說(shuō)明
- 4 修訂歷史記錄
- 5 說(shuō)明 （續(xù)）
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3 Feature Description
- 8.4 Device Functional Modes
- 8.5
Register Maps
- 8.5.1 Configuration Registers
- 8.5.2 ROM Signature Register
- 8.5.3 Vendor ID LSB Register
- 8.5.4 Vendor ID MSB Register
- 8.5.5 Product ID LSB Register
- 8.5.6 Product ID MSB Register
- 8.5.7 Device Configuration Register
- 8.5.8 Battery Charging Support Register
- 8.5.9 Device Removable Configuration Register
- 8.5.10 Port Used Configuration Register
- 8.5.11 Device Configuration Register 2
- 8.5.12 USB 2.0 Port Polarity Control Register
- 8.5.13 UUID Registers
- 8.5.14 Language ID LSB Register
- 8.5.15 Language ID MSB Register
- 8.5.16 Serial Number String Length Register
- 8.5.17 Manufacturer String Length Register
- 8.5.18 Product String Length Register
- 8.5.19 Serial Number String Registers
- 8.5.20 Manufacturer String Registers
- 8.5.21 Product String Registers
- 8.5.22 Additional Feature Configuration Register
- 8.5.23 Device Status and Command Register
-
9 Applications and Implementation
- 9.1 Application Information
- 9.2
Typical Application
- 9.2.1
Discrete USB Hub Product
- 9.2.1.1 Design Requirements
- 9.2.1.2
Detailed Design Procedure
- 9.2.1.2.1 Upstream Port Implementation
- 9.2.1.2.2 Downstream Port 1 Implementation
- 9.2.1.2.3 Downstream Port 2 Implementation
- 9.2.1.2.4 Downstream Port 3 Implementation
- 9.2.1.2.5 Downstream Port 4 Implementation
- 9.2.1.2.6 VBUS Power Switch Implementation
- 9.2.1.2.7 Clock, Reset, and Misc
- 9.2.1.2.8 TUSB8041 Power Implementation
- 9.2.1.3 Application Curves
- 9.2.1
Discrete USB Hub Product
- 10Power Supply Recommendations
- 11Layout
- 12器件和文檔支持
- 13機(jī)械、封裝和可訂購(gòu)信息
封裝選項(xiàng)
請(qǐng)參考 PDF 數(shù)據(jù)表獲取器件具體的封裝圖。
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- RGC|64
散熱焊盤(pán)機(jī)械數(shù)據(jù) (封裝 | 引腳)
訂購(gòu)信息
9 Applications and Implementation
NOTE
Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality.
9.1 Application Information
The TUSB8041 is a four-port USB 3.0 compliant hub. It provides simultaneous SuperSpeed USB and high-speed/full-speed connections on the upstream port and provides SuperSpeed USB, high-speed, full-speed, or low speed connections on the downstream port. The TUSB8041 can be used in any application that needs additional USB compliant ports. For example, a specific notebook may only have two downstream USB ports. By using the TUSB8041, the notebook can increase the downstream port count to five.
9.2 Typical Application
9.2.1 Discrete USB Hub Product
A common application for the TUSB8041 is as a self powered standalone USB hub product. The product is powered by an external 5V DC Power adapter. In this application, using a USB cable TUSB8041’s upstream port is plugged into a USB Host controller. The downstream ports of the TUSB8041 are exposed to users for connecting USB hard drives, cameras, flash drives, and so forth.
Figure 4. Discrete USB Hub Product
9.2.1.1 Design Requirements
Table 48. Design Parameters
9.2.1.2 Detailed Design Procedure
9.2.1.2.1 Upstream Port Implementation
The upstream of the TUSB8041 is connected to a USB3 Type B connector. This particular example has GANGED pin and FULLPWRMGMTZ pin pulled low which results in individual power support each downstream port. The VBUS signal from the USB3 Type B connector is feed through a voltage divider. The purpose of the voltage divider is to make sure the level meets USB_VBUS input requirements
Figure 5. Upstream Port Implementation
9.2.1.2.2 Downstream Port 1 Implementation
The downstream port 1 of the TUSB8041 is connected to a USB3 Type A connector. With BATEN1 pin pulled up, Battery Charge support is enabled for Port 1. If Battery Charge support is not needed, then pull-up resistor on BATEN1 should be uninstalled.
Figure 6. Downstream Port 1 Implementation
9.2.1.2.3 Downstream Port 2 Implementation
The downstream port 2 of the TUSB8041 is connected to a USB3 Type A connector. With BATEN2 pin pulled up, Battery Charge support is enabled for Port 2. If Battery Charge support is not needed, then pull-up resistor on BATEN2 should be uninstalled.
Figure 7. Downstream Port 2 Implementation
9.2.1.2.4 Downstream Port 3 Implementation
The downstream port3 of the TUSB8041 is connected to a USB3 Type A connector. With BATEN3 pin pulled up, Battery Charge support is enabled for Port 3. If Battery Charge support is not needed, then pull-up resistor on BATEN3 should be uninstalled.
Figure 8. Downstream Port 3 Implementation
9.2.1.2.5 Downstream Port 4 Implementation
The downstream port 4 of the TUSB8041 is connected to a USB3 Type A connector. With BATEN4 pin pulled up, Battery Charge support is enabled for Port 4. If Battery Charge support is not needed, then pull-up resistor on BATEN4 should be uninstalled.
Figure 9. Downstream Port 4 Implementation
9.2.1.2.6 VBUS Power Switch Implementation
This particular example uses the Texas Instruments TPS2561 Dual Channel Precision Adjustable Current-Limited power switch. For details on this power switch or other power switches available from Texas Instruments, refer to the Texas Instruments website.
Figure 10. VBUS Power Switch Implementation
9.2.1.2.7 Clock, Reset, and Misc
The PWRCTL_POL is left unconnected which results in active high power enable (PWRCTL1, PWRCTL2, PWRCTL3, and PWRCTL4) for a USB VBUS power switch. The 1 µF capacitor on the GRSTN pin can only be used if the VDD11 supply is stable before the VDD33 supply. The depending on the supply ramp of the two supplies the capacitor may have to be adjusted.
9.2.1.3 Application Curves
