A chip ground detection device includes (i) a current source, (ii) a switching device including one or more switching units, (iii) a voltage monitoring unit coupled to an exposed pad of a chip via the one or more switching units, and (iv) a control unit for controlling the one or more switching units and configured to close the one or more switching units when the current source is operating, such that the voltage monitoring unit obtains a first voltage V.sub.1 on the exposed pad; is configured to close the one or more switching units when the current source is not operating, such that the voltage monitoring unit obtains a second voltage V.sub.2 on the exposed pad; and determines a ground resistance for the exposed pad based on the first voltage V.sub.1 and the second voltage V.sub.2 . An application-specific integrated circuit chip, a method of chip ground detection, and a computer program product are also disclosed.

A control circuit includes: a current detection unit, where the current detection unit is configured to: when being connected to a battery, output a first type signal when detecting that the battery has an overcurrent or a short circuit; and a driver circuit, where an input terminal of the driver circuit is connected to a signal output terminal of the current detection unit, an output terminal of the driver circuit is configured to connect to a safety module in the target loop, and the driver circuit is configured to output, in response to receiving the first type signal transmitted from the current detection unit, a drive signal to drive the safety module to be disconnected, where the target loop is a loop in the battery or a loop in a device in which the battery is located.