产品详情

General Description

The G3703 is a combination of current-limited USB port power switch with a USB 2.0 high-speed data line (D+/D-) switch and a USB charging port identification circuit. The wide bandwidth data-line switch also features low capacitance and low on resistance, allowing signals to pass with minimum edge and phase distortion. The G3703 monitors D+ and D-, providing the correct hand-shaking protocol with compliant client devices.

The G3703 supports the following charging logic schemes:

■ USB 2.0 BC1.2

■ Chinese Telecom Standard YD/T 1591-2009

■ Divider Mode, compliant with Apple devices such as iPod® and iPhone®

In addition to charging popular devices, the G3703 also supports two distinct power management features, namely, power wake and port power management (PPM) via the STATUS pin. Power wake allows for power supply control in S4/S5 charging and PPM the ability to manage port power in a multi-port application. Additionally, system wake up (from S3) with a mouse/keyboard (both low speed and full speed) is fully supported in the G3703. High electrostatic discharge (ESD) protection is enhanced on the DP and DM inputs up to ±8kV Human Body Model (HBM).

The G3703 is available in the TQFN3X3-16 package.

Applications

■ Notebook Computers

■ Battery-Powered Systems