0
\$\begingroup\$

I have a design which will include the optional use case of boosting up to 7V from a li-ion battery. I can't seem to find any drivers dedicated to li-ion for this? There seem to be a few buck boost that can generate 3V3. Should I use that 3V3 and boost using a standard boost converter? The Li-ion battery is also going straight into an IC which includes li-ion charge and protection circuitry.

I know this is wasteful use of the battery but will only be used if the user sets the jumper in that position as an additional (but limited) design feature.

\$\endgroup\$
  • 1
    \$\begingroup\$ Just use a boost converter to take the battery voltage and output 7 volts. \$\endgroup\$ – Andy aka Jul 6 '18 at 11:59
  • \$\begingroup\$ Why not use 2 batteries in series ? The nominal Li-ion voltage is 3.7, that will make you 7.4 without anything else. At full charge, you get 8.4, at low charge you get 6.6V. Should be fine for most applications. \$\endgroup\$ – Overmind Jul 23 '18 at 12:40

Your Answer

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Browse other questions tagged or ask your own question.