bq24104 change ISET1 with NMOS and resistor

PAN-M

There was a part of the answer of my question in the following URL.

I have some questions additionally.
1) Is a capacitor for FET parallel denoising necessary?
2) Is the control timing no problem anytime?
3) When changing ISET1, is control of /CE necessary?
If you have any other comment, please teach me.

Regards,
PAN-M

over 9 years ago

0 Smriti B over 9 years ago

TI__Expert 5565 points

1. A capacitor is only necessary if there is noise. It will depend upon your application.
2. I am not sure what you mean by this. Could you explain?
3. It is not necessary to toggle /CE while changing ISET1 if the voltage transition does not have ringing. Otherwise, I would recommend disabling charge via /CE when changing the ISET1 voltage.

0 PAN-M over 9 years ago in reply to Smriti B

Mastermind 8375 points

2. About ISET1 change timing, is it may at any timing ?
Regards,
PAN-M

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bq24104 change ISET1 with NMOS and resistor