bq34z100 VEN input high level threshold

K. Sasaki14

Guru 10200 points

I think high level input is needed to VEN pin for detection of push button ON.

So, I want to know the high level threshold.

Please let me know that information.

And I have one more question.

In datasheet circuit, there is 1k ohm resistor betwenn VEN and REG25.

Is it no problem that this resistor is modified to 500 ohm?

over 12 years ago

0 ThomasCosby over 12 years ago

TI__Guru 73830 points

Sasaki-san,

The VEN input detects a current to activate the LEDs. I found the detection threshold to be about 75uA.You can use a 500 ohm resistor, but it will increase the current consumption in the device.

Tom

0 K. Sasaki14 over 12 years ago in reply to ThomasCosby

Guru 10200 points

Tom-san,

Is the VEN pin current detection input?

I think VEN pin detects voltage level. Is my idea wrong?

Or is 75uA necessary for VEN voltage rising up to voltage threshold?

Power management

Power management forum

bq34z100 VEN input high level threshold