Hi all,
I purchased this driver and when connected it seems its output, per segment, is in the range of uA, while my understanding reading the tech datasheet is that it could provide 100mA.
Driving a 7 segments display CC WL-T7DS.
Supply to the IC is 5V, plenty of current headroom.
See snips below:

My power supplies are fine, the 7-seg digit is fine when powered directly from the 5V.
Did I misinterpret it?
Thanks!

 

Datasheet states that absolute maximum supply voltage is 6V. Do not exceed this.
5 V is the typical supply voltage.

The ICM7218 driver can supply 25 mA per segment if required to do so.
The segment will take what it needs which will normally be much lower than 25 mA.
If the segment needs only 10 μA, then that is what it will take.

Can you restate your question? It is not clear what you are asking.

 

Datasheet states that absolute maximum supply voltage is 6V. Do not exceed this.
5 V is the typical supply voltage.

The ICM7218 driver can supply 25 mA per segment if required to do so.
The segment will take what it needs which will normally be much lower than 25 mA.
If the segment needs only 10 μA, then that is what it will take.

Can you restate your question? It is not clear what you are asking.

Sorry
I want to drive 6 of the above 7 segment digits. I'm using an Arduino nano for the logic and this driver to multiplex the signals.
I've been using these digits for a while and work well when powered directly by the Arduino, nice and bright.
But when I set up the 7218 they were very dim, barely visible. I check the applied voltage and it looked fine. When I measured the current it was around 20uA per segment. When I measure the current they can draw from a different source then it goes to 20mA and they are nice and bright.
What am I doing wrong?

 

You will have to read the manufacturer's data sheet for ICM7218BI common cathode 7-segment LED driver. Make sure all the conditions are satisfied.

I don't have the time right now to look this over for you.

 

Thanks.
I managed to sort it out and things are definitely better.
Anyway the current output is still lower than what I need, is there any way to boost the current output maintaining the same voltage? I can't find any equivalent IC with more output A.
Thanks.