EM1402EVM: EMB1499Q

Malcolm Mcdowell

Part Number: EM1402EVM
Other Parts Discussed in Thread: EMB1499Q

I am using the EM1402 reference design board.

I have found that the emb1499Q is giving a fault of 111. This fault is no listed in the datasheet as a valid fault. Does this mean there are a combination of faults or can only one fault be accounted for at one time?

I am also reading CELLPLUS as a little over 4V where the battery is only ~2.1V. Is there an issue with the AFE?

Thanks,

Malcolm

over 4 years ago

0 Taylor Vogt over 4 years ago

TI__Genius 17370 points

Hi Malcolm,

Please check this thread for your question about the fault code:

https://e2e.ti.com/support/power-management/f/196/p/609664/2244334?tisearch=e2e-sitesearch&keymatch=EM1402%252525252520fault%252525252520111#2244334

As for the cell voltage - we cannot say if it is a connection issue or the device without more details - please probe the connections and check no cell pins are shorted or anything else may cause an issue.

Regards,

Taylor

0 Malcolm Mcdowell over 4 years ago in reply to Taylor Vogt

Intellectual 570 points

Hi Taylor,

Thanks for the update. I was using a scope and saw all three fault lines go high. I will investigate more.

When I check on the EN Pin, it doesn't stay high. It toggles as shown below. Am I correct to assume that the EN pin should stay high and not toggle like the scope capture below:.

0 Leslie Marquez over 4 years ago in reply to Malcolm Mcdowell

TI__Genius 9301 points

Hi Malcolm,

I responded to your question above in this other thread: https://e2e.ti.com/support/power-management/f/196/t/820022#pi320995=2

Best regards,

Leslie

0 Malcolm Mcdowell over 4 years ago in reply to Leslie Marquez

Intellectual 570 points

Hi Leslie,

I did provide a response. Let me know if you have nay thoughts.

Thanks,

Malcolm

0 Taylor Vogt over 4 years ago in reply to Malcolm Mcdowell

TI__Genius 17370 points

Hi Malcolm,

We are looking into your response on the other thread and will get back to you there. I will close this one so to avoid confusion on having multiple threads with the same issue. Please kindly click the "This resolved my issue" button.

Thanks,

Taylor

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EM1402EVM: EMB1499Q