The mobile phone tail strap ic is a charge management chip. Mobile phone tail plug itself does not have ic, the general mobile phone ic is welded on the mobile phone tail plug small board, the mobile phone tail plug small board generally has a mobile phone signal part, there are many originals, there are small ics are generally protective originals, charging tail plug small board is a charging protection original, generally have a small chip.
Refers to the phone's tail jack (usually a 3.5mm headphone jack) with an integrated circuit (IC) to control the audio input and output. This IC can improve the quality and stability of audio, while also implementing some special audio functions, such as noise reduction, bass enhancement, and so on.
IC is an integrated circuit, the IC in the charger is to control and detect the current and voltage when charging, and some also check the temperature when charging, so that the charger can charge the battery in the best state.