Constant-current driving control circuit, constant-current driving control system and chip

The embodiment of the invention provides a constant-current driving control circuit, a constant-current driving control system and a chip. The constant-current driving control circuit comprises a power supply module, a control module and a constant-current driving module, the input end of the control module is electrically connected with the positive electrode of the LED, the output end of the control module is electrically connected with the control end of the power supply module, the output end of the power supply module is electrically connected with the first input end of the constant-current driving module, the second input end of the constant-current driving module is electrically connected with reference voltage, and the current output end of the constant-current driving module is electrically connected with the positive electrode of the LED; the control module is used for collecting the input voltage of the LED and controlling the output voltage of the power supply module to fluctuate near the target