GENERAL DESCRIPTION
The device supports a wide range of input sources, including standard USB host ports, USB charging ports and USB compliant adjustable high voltage adapters. The SY20743/C takes the result from a detection circuit in the system, such as a USB PHY device, while the SY20743B takes the detection result from the internal USB port identification circuit thru DP/DM to enable BC1.2 compliance. The SY20743/B/C is compliant with USB 2.0 and USB 3.0 power specification with input current and voltage regulation. The SY20743/B/C meets the USB On-the-go operation power rating specification by supplying 5.15V (programmable) on BUS rail with a programmable current limit of up to 1.2A. The integrated power path management provides the system power supply and regulates the system voltage above 3.5V minimum system voltage (programmable) with high priority, even when battery voltage is low. This architecture allows automatically reducing the charging current when the system load demands more current.
Silergy
