LSF0204-Q1: Total leakage current

Kurumi Hasegawa

Expert 7891 points

Part Number: LSF0204-Q1

Hi team,

Could you help me calculating the total leakage current in following condition?

Is there other parameter to add to ICCA + ICCB?

Using all 4ch
EN=0V
VREFB=5V　
VREFA=3.3V

Best regards,

Kurumi

over 4 years ago

0 Emrys Maier over 4 years ago

TI__Guru* 97046 points

Hello Hasegawa-san,

Please see this video series - it will explain everything you need to know much faster and easier than I could here.

Please don't hesitate to come back with any questions you might have.

0 Kurumi Hasegawa over 4 years ago in reply to Emrys Maier

TI__Expert 7891 points

Hello Maier-san

Thank you for the information. I’ve checked the video and still confused a little.

Just wanted to confirm, when the EN=0V, the total leakage current is the sum of all below?

I/O input high leakage: 5.0 uA*4ch
Leakage from Vref_B to Vref_A: 3.5 uA
Total current though GND: 0.2 uA*4ch
Power off leakage current: ±1uA*4ch

So in total 27.3±1uA?

0 Emrys Maier over 4 years ago in reply to Kurumi Hasegawa

TI__Guru* 97046 points

Hello Hasegawa-san,

If EN = 0V, the gate of the FETs are at 0V, and they will be in in cutoff. Current through them will be extremely low.

The only specification that applies at 0V supply is this one:

In other words, each pin can have up to 1uA of leakage into or out of it. Typically, this leakage will be in the low nA range, but it can get close to the limit at high temperatures.

0 Kurumi Hasegawa over 4 years ago in reply to Emrys Maier

TI__Expert 7891 points

Hello Maier-san

I understand. Thank you so much for the help!

Best,

Kurumi

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LSF0204-Q1: Total leakage current