VL812 Просмотр технического описания (PDF) - Unspecified

Номер в каталоге

Компоненты Описание

производитель

VL812

VIA VL812 - SuperSpeed USB 3.0 Hub Controller

Unspecified 

VL812 System Overview

VL812 USB 3.0 Hub Controller (B1)

VIA Lab’s VL812 is an advanced 4-port USB 3.0 Hub controller featuring fully-integrated voltage

regulators, low power consumption, and comprehensive USB Charging support. The integrated 5V DC-DC

switching regulator enables VL812 to be powered directly from 5V USB VBus, reducing BOM cost while

offering high power efficiency. The custom in-house USB PHY supports USB power management and

gives VL812 excellent signal integrity characteristics and improved backwards compatibility. VL812 also

features a flexible firmware architecture, providing a framework for custom functions in addition to

in-field updates.

VL812 based hub devices work under Windows, Mac OS X, and various Linux kernels without additional

drivers. Since USB 3.0 hubs do not require additional drivers, VL811+ is also compatible with non-x86

devices and platforms that support USB hub functions such as smart phones, tablets, and set-top boxes.

It is well suited for all USB hub applications such as stand alone USB hubs, Notebook/Ultrabook docking

stations/port-replicators, desktop PC front panel, motherboard on-board hub, and USB hub compound

devices.

With well-planned pinout and a high level of integration, VL812 based devices enjoy easy layout and

simplified BOM. Sideband signal pins are available for showing power enable, over current, GPIO, and

LED status control. The SPI interface supports external EEPROM/Flash ROM which can be updated over

USB. VL812 is available in QFN 76L green package (9x9x0.85 mm) to fit small form-factor designs.

Figure 1 – VL812 Block Diagram

-5-

Share Link: