Integrated high-voltage management unit and high-voltage sampling method thereof

The invention discloses an integrated high-voltage management unit and a high-voltage sampling method thereof. The integrated high-voltage management unit comprises an ADC chip, an MCU processor, a communication bus and a multiplexer. The ADC chip and the MCU processor are in communication connection through a communication bus; two ADC units are integrated in the ADC chip, the first ADC unit is connected to a current input/output point through a current sampling device, and the second ADC unit is divided into a PACK channel, a LINK channel and an insulation channel through a multiplexer and then is connected with a PACK voltage sampler, a LINK voltage sampler and an insulation sampler. According to the invention, through the single ADC chip integrated with the two ADC units and in combination with the multiplexer, the purpose of detecting current, PACK voltage, LINK circuit voltage and insulation at the same time is realized, the detection periodicity of each signal is ensured, a schematic diagram and PCB wi