BQ25155: Verification: Output Low Threshold Voltage

David Tandri

Part Number: BQ25155

Hi,

For BQ25155, VOL value under test condition of Load current of 5mA is (0.25 * VIO) V.

If my load current is much lower than 5mA, does this also mean that the VOL of BQ25155 is lower than (0.25 * VIO) as well?

Thanks

over 3 years ago

0 Raheem over 3 years ago

TI__Mastermind 21590 points

The current shows what the load current was during the test. The spec will be the same at lower current.

0 David Tandri over 3 years ago in reply to Raheem

Expert 1355 points

Hi,

I have MCU GPIO that interpret LOW state at maximum voltage (VIL) of 0.42V. Then, I2C maximum LOW state output voltage (VOL) for BQ25155 is 0.525V (0.25*2.1V). VIO of the charging chip is 2.1V.

MCU GPIO might not interpret as LOW because input signal to GPIO is higher than 0.42V.

Any solution to this?

Please advise.

Thanks

0 Raheem over 3 years ago in reply to David Tandri

TI__Mastermind 21590 points

PLease look at conversation below.

https://e2e.ti.com/support/power-management/f/196/t/911158

Power management

Power management forum

BQ25155: Verification: Output Low Threshold Voltage