Is it possible to control the base of the transistor using the level shift chip (3.3V / 5V)? I want to use the SN74AHCT125 level shift chip.

Transistor BC337-16

  • 1
    \$\begingroup\$ It is possible to get bad results too unless you are more specific on your configuration and output spec limits., \$\endgroup\$ – Tony Stewart Sunnyskyguy EE75 Dec 26 '18 at 15:04
  • 2
    \$\begingroup\$ Please edit your question to include a schematic of what you're really trying to do. As pointed out in the answer, a level-shifter is almost certainly unnecessary. \$\endgroup\$ – TimWescott Dec 26 '18 at 18:14

There generally is no need to use a level shifter to control a BJT transistor, as long as the high output level is higher than the required \$V_{\rm BE}\$ (1.2V for your BC337-16 transistor, with \$I_{\rm C} = 300 \rm mA\$ and \$V_{\rm CE} = 1 \rm V\$). WHat are you trying/willing to do?


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

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