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I have a simple question. I'm looking at using http://www.ti.com/lit/ds/symlink/cd4013b.pdf for my project and I need to be able to draw ~500ma from the 'Q' or '!Q' pin on the flipflop. How much current can I draw? I looked at the datasheet and couldn't find that information.

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marked as duplicate by Dmitry Grigoryev, PeterJ, winny, Voltage Spike, DoxyLover Jul 6 '18 at 7:46

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    \$\begingroup\$ "How much can I draw from the output of a flip flop?" However much the datasheet says you can draw. This really should have been obvious. -1 for the dumb question. \$\endgroup\$ – Olin Lathrop Jun 29 '18 at 10:43
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    \$\begingroup\$ You should also indicate what kind of load you have. If it is an inductive load (solenoid, motor, ...), there needs to be some protection. \$\endgroup\$ – dim Jun 29 '18 at 10:44
  • \$\begingroup\$ @ti_chris Looks like you'll need an amplifier then, or a switch that can handle that kind of current \$\endgroup\$ – Voltage Spike Jul 5 '18 at 18:58
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Take a look at page 6 of the datasheet. The values for different V_o are in the range < 3..4 mA. So you have to take a nmost or pmos switch!

schematic

simulate this circuit – Schematic created using CircuitLab

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