TPS65094: PROCHOT polarity and power PAD VIA

Antony Lin

Genius 13480 points

Part Number: TPS65094

Hi,

For TPS650944, can you double confirm if PROCHO is high-active or low-active?

Regarding the VIA implementation for power pad, what is the minimum requirement we have here?

Thanks!

Antony

over 8 years ago

0 Jari Niemela13 over 8 years ago

TI__Genius 13850 points

Hi Antony,

I have assigned the thread to the expert of this device.

Best regards,

Jari Niemelä

0 Kevin LaRosa over 8 years ago

TI__Genius 17380 points

Hey Antony,

Thank you for posting to E2E.

PROCHOT signal is active high (pulled high when PMIC temp > THOT). Processor wants PROCHOT_B (active low), hence the inverter.

The datasheet recommends 0.2 mm (8 mil) hole size. This matches what we use on the EVM. There is no specification for minimum or maximum, this is just the recommendation. The intention is to ensure good connection from PMIC power pad to ground.

0 Antony Lin over 8 years ago in reply to Kevin LaRosa

TI__Genius 13480 points

Hi Kevin,

THanks for the reply. Do we specify the minimum number of GND VIA required for power pad?

Thanks!

Antony

0 Kevin LaRosa over 8 years ago in reply to Antony Lin

TI__Genius 17380 points

Hi Antony,

We just recommend 16 per the mechanical info in the datasheet, no specification here either.

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TPS65094: PROCHOT polarity and power PAD VIA