0
\$\begingroup\$

I have a doubt about the function of the diode D6 shown in this schematic

enter image description here

The schematic is for a battery management system and the diode is between the +,- terminals of the total voltage:

enter image description here

I do not know about that diode since I could not find its datasheet and I also looked for different diode symbols but no succeed, I guess it is a kind of schottky diode and it is to protect against reverse polarity when charging the battery pack.

Could somebody explain me please?

\$\endgroup\$

1 Answer 1

3
\$\begingroup\$

D6 is an TVS diode. It's an ESD supressor, as PACK+ signal is placed in the connector, it's susceptible to receive and ESD if someone touch the pin or something. For that reason, a TVS is placed to avoid damage other circuitry because of that event. It's a safety feature. Here is the datasheet of the diode if you want to have a look to it: https://eu.mouser.com/datasheet/2/115/DIOD_S_A0000285740_1-2541913.pdf ;)

\$\endgroup\$
2
  • \$\begingroup\$ Could I supress that diode from my schematic? since in the datasheet of the integrated circuit BMS it is not included in the typical application? \$\endgroup\$
    – imt_blake
    Commented Mar 21, 2023 at 14:58
  • 2
    \$\begingroup\$ Yes, you can. It does not add any funcionality and should not affect, unless you have an ESD event. \$\endgroup\$
    – Alber
    Commented Mar 21, 2023 at 15:15

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.