LM5176: Clarification on Op-amp part number for Application Note: Bidirectional TEC Driver Design for 40-W TEC

Gael Garcia

Part Number: LM5176
Other Parts Discussed in Thread: MSPM0G3507

Tool/software:

Dear Sir/Madam,

I am referring to the application note titled "Bidirectional TEC Driver Design for 40-W TEC". In the block diagram (Figure 2-1), there appears to be an op-amp with a resistor connected between its inverting and non-inverting inputs, which is then routed to the ADC_IN pin of the MSPM0G3507.

However, the document does not provide details about this op-amp or the resistor. Could you please provide the part number of the op-amp and any relevant electrical characteristics it should meet? Additionally, I would appreciate guidance on the purpose and recommended value of the resistor between the op-amp inputs.

Thank you very much for your assistance.

Best regards,
Gael Garcia

2 months ago

0 Stefan Schauer 2 months ago

TI__Guru 58641 points

Hi Gael,

let me check with the author of this report and come back later this week.

Best regards,

Stefan

+1 Matthew Chen 2 months ago in reply to Stefan Schauer

TI__Intellectual 1400 points

Hi Gael,

Thanks for interesting with our solution.

For the amplifiers in the schematic we suggest to use TI current sense amplifiers. You can select either analog or digital INA according to you application. For analog, you can check INA241.

Let us know if you have any question.

Matthew

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LM5176: Clarification on Op-amp part number for Application Note: Bidirectional TEC Driver Design for 40-W TEC