• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 48 subscribers
  • Views 110 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TLV4113: short circuit output current

Yuta Nishie
Genius 5210 points
Part Number: TLV4113


Tool/software:

Hi,

This IC has a short-circuit output current limit.

Am I correct in understanding that this function stops the output when the output current exceeds 800mA? Or does it clamp the output current at 800mA?

The actual continuous load current is 200~300mA, but if this IC can withstand transient load fluctuations up to 800mA, I would like to consider this IC.

Best Regards,

Nishie

  • 0
    Guru 318050 points

    The 800 mA limit is specifed in the absolute maximum ratings table. This means that your circuit is reponsible for ensuring that the limit is not exceeded. If your circuit tries to draw more than 800 mA, the device can get damaged. (And even with smaller currents, you are responsible for cooling it.)

  • 0 in reply to Clemens Ladisch
    Genius 5210 points

    Hi Clemens-san,

    Thank you for your answer.

    From your answer, I understood that the IC can be used without breaking if the transient current does not exceed 800 mA. Is this correct? (However, even if it is 800 mA or less, the IC will break if the temperature exceeds Tj.)

    I apologize for my lack of knowledge. Could you tell me the difference between peak output current and short circuit output current?

    Best Regards,

    Nishie

  • +1 in reply to Yuta Nishie
    TI__Mastermind 28130 points

    Hello Yuta-san,

    I recommend taking a look at the Precision Labs: Input and output limitations - Output swing. It goes over the short circuit current vs the output current for op amps. 

    Looking at the datasheet:

    The output current is usually specified for a specific output voltage. Notice in this case it's saying at 0.5V from the supply rail. It doesn't represent the maximum output current that the op amp can do but it shows what it can do in normal operation. Short circuit output current represents the max current that the device can deliver in a short circuit condition. 

    Best Regards,

    Robert Clifton