Battery protection circuit, battery pack and electronic device

A battery protection circuit, comprising:

• a power supply terminal, a power ground terminal, an overcharge voltage protection sub-circuit, an over-discharge voltage protection sub-circuit, a discharge over-current protection sub-circuit, a reference voltage generation sub-circuit, a frequency generation sub-circuit, a controller and a first switch sub-circuit;
• wherein the power supply terminal and power ground terminal are respectively configured to be electrically connected to a battery, the controller is respectively connected to the overcharge voltage protection sub-circuit, the over-discharge voltage protection sub-circuit, the discharge over-current protection sub-circuit, the frequency generation sub-circuit and the first switch sub-circuit, the battery protection circuit is configured to provide an overcharge protection, an over-discharge protection, and an over-current protection for the battery, the first switch sub-circuit is configured to control the battery to supply power to a system circuit;
• wherein the battery protection circuit further comprises a shipping input terminal, the battery protection circuit is configured to enter a shipping mode when a first signal is received at the shipping input terminal, and at least one sub-circuit of the battery protection circuit is powered off in the shipping mode;
• and
• wherein the first switch sub-circuit is switched off in the shipping mode, to enable the battery to stop supplying power to the system circuit.