TPS2121: UVLO Process vs Temperature Variation

Srdjan Najhart

Part Number: TPS2121

Hello,

I have multiple TPS2121 devices cascaded and I need to know what is the process variation on UVLO.

In the datasheet UVLO is specified as 2.5 to 2.8 C (rising), 2.4 to 2.7 V (falling) from -40 to 125 oC.

However, all my devices will be at the same temperature so what kind of variation in UVLO can I expect from device to device at the same temperature, say 25 oC?

Thank you.

over 4 years ago

0 dimitri james over 4 years ago

TI__Genius 10652 points

Sdrjan,

We don't have published UVLO spec data published for only one temperature. I recommend to use the same UVLO spec as currently in the datasheet.

Best

Dimitri

0 Srdjan Najhart over 4 years ago in reply to dimitri james

Prodigy 40 points

Thanks Dimitri,

Does this mean that process variation in Vref is also unknown? The datasheet only specifies Vref over temperature.

-Srdjan

0 dimitri james over 4 years ago in reply to Srdjan Najhart

TI__Genius 10652 points

Srdjan,

The range in the datasheet includes both process variation and temperature variation. This is +/-6sigma condition or even more extreme than.

100% of the ICs are guaranteed to fall within this range, across process and temperature.

Best

Dimitri

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TPS2121: UVLO Process vs Temperature Variation