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6748上电之后电流回达到1.4A左右,但在外部给了复位信号之后,回复正常为300mA.(板上还有其他芯片,300mA为正常)

Other Parts Discussed in Thread: TPS650250

自己设计的硬件电路,6748的复位信号和EMIFA与FPGA相连,6748启动时,FPGA不给复位信号时,整个板子电流会很大(此时6748能正常工作),但FPGA给了复位信号之后,板子电流恢复正常。电源芯片用的TI的TPS650250,电流很大时,电路板上的其他芯片有时候都不能启动。