DRV425EVM: Table 2 in SLOU410A is incorrect

shawn mccaslin

Part Number: DRV425EVM
Other Parts Discussed in Thread: DRV421EVM

Table 2 in SLOU410A is incorrect. You can tell by examining the traces in Figure 5, or Figure 6, that the pin assignments shown in that table are not correct.

Additional comments:

-- Seems odd that the default value of R1 is 100 ohms. With a 5V supply, that limits the max field to 0.5 mT.

-- I much prefer the layout of the DRV421evm. Much easier to embed the evm, and make sensitivity tests.

over 4 years ago

0 Javier Contreras4 over 4 years ago

TI__Mastermind 29600 points

Shawn,

Thanks for pointing this out. I will take a look at it and get back to you in a day.

0 Javier Contreras4 over 4 years ago in reply to Javier Contreras4

TI__Mastermind 29600 points

Shawn,

Thanks again for pointing out the error. I will have it corrected. I don't have an accurate time because at this time there are some delays. I will update you when done.

Regarding your other comments

-The changing of the R1 resistor should not be too difficult. We chose a value that was between trying to measure very low magnetic field and the full scale range possible. This of course is a trade-off.

-This is also a tradeoff attempting to make the overall EVM smaller. This EVM can be placed in many locations for variation of application and the smaller overall size of the EVM was what was considered to be more beneficial. I can see where are are coming from and sorry our EVM is not fit your needs specifically.

0 Javier Contreras4 over 4 years ago in reply to Javier Contreras4

TI__Mastermind 29600 points

Shawn,

Thanks again for pointing out the error. It has been fixed and online.

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DRV425EVM: Table 2 in SLOU410A is incorrect