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TPS63001: TPS63031 Datasheet question

Yue Chen
Prodigy 120 points
Part Number: TPS63001
Other Parts Discussed in Thread: TPS63031

Hi all,

         I have a question about the datasheet of TPS63031: 

      

From the above figures(captured from datasheet), you can see the EN pin don’t connect with high voltage, in other word, the chip is disabled. So should I wired EN pin with VIN?

 

 

Thanks, best regards

 

Yue Chen

  • 0
    TI__Expert 5425 points
    In the schematic picture you captured from the datasheet EN and PS/SYNC are connected to VINA. If you check the block diagram on page 8 of the datasheet you can see that VINA is internally connected to VIN with a resistor. This means VINA has the same voltage as VIN and the device is enabled if an appropriate voltage source is connected at VIN.