Driving chip, control method thereof and electronic equipment

The invention provides a driving chip, a control method thereof and electronic equipment, and the control method comprises the steps: firstly, determining the duty ratio of a PWM driving signal in an initial state according to the initial electrical parameter of the driving chip, and after the driving chip works, determining the duty ratio of the PWM driving signal according to the positive correlation change relation between the junction temperature value of the driving chip and the output current; the duty ratio of the PWM driving signal is indirectly adjusted according to the junction temperature value, then the output power of the driving chip is adjusted, a current detection circuit does not need to be additionally arranged outside the driving chip, power adjustment and line loss compensation can be completed by adopting a detection unit in the driving chip, the overall structure of the driving circuit is simplified, and the design cost is reduced. 本发明提出一种驱动芯片及其控制方法、电子设备，控制方法中，首先根据驱动芯片的初始电参数确定初始状态下的PWM驱动