I wanted to design a circuit where the LED turns on when the voltage is in the range of 4.9 to 5V and same to that of charge with the range of 0.5 to 0.52. Can anyone help me with a basic circuit?

  • 1
    \$\begingroup\$ If you can live with >4.9V and <0.52V, look up window comparators. \$\endgroup\$
    – Matt Young
    Commented Feb 21, 2020 at 0:19
  • \$\begingroup\$ By 'charge' could you possibly mean current? \$\endgroup\$ Commented Feb 21, 2020 at 0:28
  • \$\begingroup\$ YES sir , it would be current \$\endgroup\$ Commented Feb 21, 2020 at 0:45

1 Answer 1


One Example for the voltage detection circuit:

Detailed design procedure is in section 8.2.2 of the datasheet:
enter image description here

The outputs are active low. I am doubtful about the accuracy though.There are some points in the doc, where by sacrificing little more power consumption, accuracy can be better.


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