TPS2113A - About behavior at IN1 and IN2 became the same voltage

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Guru 21045 points

Hi Team,

We are evaluating TPS2113AEVM at the mode1 automatic switching.

Are Q1 and Q2 of this device turned off at the same time if when IN1 and IN2 became the same voltage?

[Background]

We are evaluating TPS2113AEVM at the following condition.

Then, OUT drops if IN1 and IN2 became the same voltage.

We would like to know this cause.

[EVM’s conditions]

Regards,

Kanemaru

over 7 years ago

0 Darwin Fernandez over 7 years ago

TI__Mastermind 40100 points

Hi Kanemaru-san,
There is some hysteresis (0.1-0.2V) that should prevent the output from oscillating back and forth between inputs. This means if the output is currently VIN1, then the output will remain VIN1 even if it's the same as VIN2, until it becomes 0.1-0.2V lower than VIN2.

0 Hide over 7 years ago in reply to Darwin Fernandez

Guru 21045 points

Hi Darwin-san,

Thank you very much for your help.

I understand. Thank you very much.

Regards,

Kanemaru

Power management

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TPS2113A - About behavior at IN1 and IN2 became the same voltage