TPS62866: VIN related questions

Hello Kazuhiko-san,

Let us come back to you before mid of this week.

Thank you!

Regards,
Dorian 

Hi Kazuhiko-san,

1)  EN pin is a digital pin, that is pulled high to enable the device. However, after applying the input voltage, there is a time delay before the device actually starts switching. 

2) When Vin< UVLO, the slew rate should be slower than 10mV/us.

3) If the Vin falling slew rate is higher than the recommended value when Vin<UVLO, it may happen that the gate driver cannot turn off the High-side FET completely and it may cause a large inrush current into the output when the input voltage starts recovery again during the new startup.

Please let me know if you have further questions on this.

Thank you!

Best regards

Sneha

Sneha,

Thank you for your response.
Let me reconfirm 1).
After all, VIN and EN can be connected, or not?
In other word, anything would go wrong if VIN and EN are connected?

Best regards,

K.Hirano

Sneha,

Thank you for your confirmation.

Best regards,

K.Hirano

Hi Kazuhiko-san,

Thanks a lot for hitting "Resolved" . If you do not have further questions on this thread. I will go ahead and close this thread. 

Thank you!

Best regards

Sneha