TPS55289: thermal shutdown

Kavita Rajaram

Prodigy 380 points

Part Number: TPS55289

Tool/software:

Hi all,

The TPS55289 has a thermal shutdown feature.

Is it possible know when a thermal shutdown has occured?

Do we have access to the registers in thermal shutdown mode? (to the all register map)?

Thank you.

BR,

Kavita

7 months ago

0 Brigitte 7 months ago

TI__Guru 65170 points

Hello Kavita,

According the description in the datasheet https://www.ti.com/document-viewer/TPS55289/datasheet#GUID-CD745FE3-85AA-4F4D-AA9A-8A5391A6B5FE/TITLE-SLVSF01T5657623-47 the internal registers are unchanged in thermal shutdown.

Best regards,
Brigitte

0 Kavita Rajaram 7 months ago in reply to Brigitte

TI__Prodigy 380 points

Hi Brigitte,

But does the thermal shuthdown mode prohibit access to the registers?

thanks,

KR,

Kavita

0 Brigitte 7 months ago in reply to Kavita Rajaram

TI__Guru 65170 points

Hello Kavita,

In general thermal shutdown does not block the communication to devices, but I have to say that I am not the technical expert of this device. Please wait until tomorrow for getting an answer from the technical expert.

Best regards,
Brigitte

0 Kavita Rajaram 6 months ago in reply to Brigitte

TI__Prodigy 380 points

Hi Brigitte,

Thank you.

Waiting for the reply from the expert.

KR,

Kavita

0 Bryce Xun 6 months ago in reply to Kavita Rajaram

TI__Mastermind 27620 points

Hi Kavita,

When thermal shutdown is triggered, all internal registers values will remain unchanged, it will not prohibit access to registers.

BRs,

Bryce

0 Kavita Rajaram 6 months ago in reply to Bryce Xun

TI__Prodigy 380 points

Hi Bryce,

Thank you

Is there a way to track wheter a thermal shutdown has occured?

KR,

Kavira

+1 Bryce Xun 6 months ago in reply to Kavita Rajaram

TI__Mastermind 27620 points

Hi Kavita,

The answer is no. The customer may need to add external solution to monitor the board/device temp.

BRs,

Bryce

0 Kavita Rajaram 6 months ago in reply to Bryce Xun

TI__Prodigy 380 points

Hi Bryce,

Okay.

Thank you.

KR,

Kavita

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TPS55289: thermal shutdown