TPS63070: If TPS63070 can be use in TEC application?

Chen Bogey8

Mastermind 9990 points

Part Number: TPS63070
Other Parts Discussed in Thread: PMP9759, , TPS63020

Hi Sir

My customer want to design TI power in TEC application,

We search TI web and find PMP9759 have similar design. because we first time to design TEC.

As attached is our customer TEC spec.

And want to design cooling 40 degree and heating 40 degree. Can TPS63070 can support this spec? if yes, how to design it?

If no, is there have any suggestion part?

Performance for 9500-035-040B TH=50.pdf

over 6 years ago

0 Brigitte over 6 years ago

TI__Guru 65170 points

Hello Chen,

Personally I did not test the application with TPS63070, but I expect that this is working as well. Please have a look to this application for the design:

0 Chen Bogey8 over 6 years ago in reply to Brigitte

Mastermind 9990 points

Hi Sir

Form reference design tidrc95, TPS63020 seems just control TEC voltage(it seems Vout -Vin, am i right?)

But how can we control follow TEC current?

Bogey

0 Brigitte over 6 years ago in reply to Chen Bogey8

TI__Guru 65170 points

Hello Chen,

Please excuse me, but I overlooked that a colleague measured as well on TPS63070, see here PMP9796.

As far as I understand TEC modules, the current is directly proportional to the applied voltage, so when you control the voltage, you as well control the current.

Best regards,
Brigitte

0 Chen Bogey8 over 6 years ago in reply to Brigitte

Mastermind 9990 points

Hi Sir

VIN is 12 V, VOUTmin is 8 V and VOUTmax is 16 V, may we have suggestion solution?May we need concern Iout capacity?
Bogey

0 Brigitte over 6 years ago in reply to Chen Bogey8

TI__Guru 65170 points

Hello Chen,

Please review this app note for the detailed calculations.

The device limits the output current by itself. But you need to take care that the IC does not overheat at full load.

Best regards,

Brigitte

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TPS63070: If TPS63070 can be use in TEC application?