keyboard_arrow_up

Q: How do I connect an FT-X series (X-Chip) for battery charge detection over USB?

A: FT-X devices have a special feature to support the USB-IF Battery Charging Specification, v1.2. Circuitry inside the FT-X detects when the device is connected to a dedicated charging port.

A simplified schematic for the charging circuit is shown below, further details can be found at: http://www.edocr.com/doc/181442/an-175-battery-charging-over-usb-ftex-devices