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TPS92641设计疑问

Other Parts Discussed in Thread: TPS92641

你好,设计上遇到以下疑问,希望得到帮助,十分感谢

请问TPS92641的输入和输出压差最少要求多少伏,系统才能稳定工作?

另外有无针对这芯片的外围在线设计工具?

从芯片的原理图来看,电流检测电阻的负端和灯珠的负端是一起的,这样会不会因为GND的大电流对检测电流产生干扰?设计指导里,是把芯片的GND和散热地单点接地。但这样就能“屏蔽”大电流负端产生的干扰?