The DK3125 is a power management chip with multiple pin functions. These include positive and negative power input pins, battery charge management pins, system power output pins, and external control pins.
The positive and negative power input pins are used for input power supply, and the battery charge management pins can be used for charge current control and battery condition monitoring. The system power output pin provides power to other components, and the external control pin can realize the control operation of the chip. Through these pins, the DK3125 implements power supply and management functions to meet the needs of a variety of application scenarios.