Patent ID: 8564251

Claim:
A switch embedded IC for battery protection, comprising: a MOSFET coupled between a first pin and a second pin of the switch embedded IC and having a body diode, wherein the first pin is to couple with an terminal of a battery, and the second pin is to couple with a load or a charger; a first switch coupled to an anode of the body diode and controlled to couple the anode of the body diode to the first pin or the second pin; a second switch coupled to a cathode of the body diode and controlled to couple the cathode of the body diode to the first pin or the second pin; a control logic circuit coupled to the MOSFET, the first switch, and the second switch, for controlling the MOSFET, the first switch, and the second switch according to a detection signal; and a detection circuit coupled to the control logic circuit, the first pin, and a third pin of the switch embedded IC, for monitoring a voltage between the first pin and the third pin to determine the detection signal, wherein the third pin is to couple with another terminal of the battery.