Post Go back to editing

ADN8833 current lmit

Hi there,

I have a question about the current limit of ADN8833.

The datasheet mention current limit function using ILIM.

Q1:

What if ILIM pin is no-used?( I mean set as open)

 Does the device still limit 1A?

Q2:

What is the current limit mode (hicup? Shut down? etc..)

Q3:

According to Fig8, I just wonder how people set without current limit?

The datasheet say this device's maximum current is 1A.

But current is going over 1A on this figure.....

Since I'm new to this device, it would be great if somebody give me advice.

Best regards,

Tarzan

Thread Notes

  • Hello,

    Does anyone have any information about this?

    Best regards,

    Tarzan

  • 1.  If you don't want to use the ilim pin and don't mind having the current limits at maximum, use a week pull down (200kOhm) on the ilim pin.

    2.  Hiccup is a disable and recovery mode that is intended to protect the parts against severe over current events.  It temporarily disables the part and attempts to reenable it after 10ms when overcurrent above 2.2 amps is detected from the linear amplifier. 

    3.  The part can source higher than 1A current, but extended operation above 1A is not recommended.