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TPS2660 FLT问题

mick huang
Intellectual 425 points
Other Parts Discussed in Thread: TPS2660

TPS2660 FLT 在规格书中是要加上电阻接到OUTPUT
但FLT 是TPS2660有问题时才会动作,加上是OPEN Drain
所以我就把FLT 加上PULL UP 电阻 , PULL UP 电阻 接到3.3V
但这样常常会有误动作的情况發生, 常常没有问题时
FLT 都会报ERROR ,请问为何一定要接到OUTPUT