Drive device for display panel, drive method thereof and display apparatus

A drive method for a drive device, comprising:

• providing, by a power management circuit, a first power supply voltage to a digital power supply terminal;
• and
• converting, by an internal driver circuit, a second power supply voltage provided by a power supply terminal into a third power supply voltage and providing the third power supply voltage to the digital power supply terminal;
• wherein the digital power supply terminal is configured to provide a drive voltage to a display panel.

A display apparatus, comprising a display panel, and a drive device connected to the display panel, the drive device comprising:

• a power management circuit, configured to provide a power supply voltage to a digital power supply terminal;
• and
• an internal driver circuit, configured to convert a second power supply voltage provided by a power supply terminal into a third power supply voltage and provide the third power supply voltage to the digital supply power terminal,
• wherein the digital power supply terminal is configured to provide a drive voltage to the display panel.