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I have some questions about TPS84320 ,i can not sure.
For the simple use the chip of TPS84320 , according to the datasheet about TPS84320, i can float these pins as followed :"INH/UVLO","SS/TR","PWRGD" ,can i ?
But how can i deal with the pins of "PH" ? The pin is described that "Phase switch node.These pins should be connected to a small copper island under the device for
thermal relief.Do not place any external component on this pin or tie it to a pin of another function.".Can i float it or connect it to the GND ? Followed is the schematic:
Is it right ?
You cannot connect that to GND or any other signal. It must be tied to a small copper area. Since that signal is not tied to any other you can consider it floating.
BSR-CCP LV/MV DC/DC Applications
The PH node must not be connected to GND or any other potential. The PH pins must be connected to one another using a copper island beneath the device.
The INH/UVLO, SS/TR, & PWRGD can be left floating.
In reply to JohnTucker:
Thanks for your reply !
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