The FA7671A is a low RDS(ON), eFuse with 30V high voltage rating, and is able to drive 5A continuous Current. The over current function protects the power source from over current or short circuit conditions. The power switch is controlled by an on/off input, which is capable of interfacing directly with low-voltage control signals. In FA7671A, an on-chip load resistor is added for output fast discharge when switch is disable. The FA7671A also supports Fast Role Swap as defined in the USB Power Delivery specification.
The power path supports OCP, SCP, OVP, RCP, and OTP features. The FLAGb signal remains asserted to indicate all above description fault events until the fault condition is removed and the device resumes normal operation. The FA7671A is designed to eliminate false fault reporting by using an internal deglitch circuit. Other features include a power-OK (POK) output that signals when the output voltage is ready.