dlpc3435: About Recommended Operating Conditions

Hello User,

Thank you for your interest in our DLP Technology.

I agree the current display of the values can be confusing. On our reference design the 3x 1.1V voltages are tied together. Therefore the typical value is measured including all of them.

The max. value shows the value for each supply separately.

I hope this makes sense.

Best regards,

Nadine

Hi,

Thank you for your prompt reply.
We can understand that there is some difference in the measurement condition of typ and max.

Question:
- Can we get the typ value in same measurement condition of max ?

We found the table in "6.5 Electrical Characteristics" from the other DLPC datasheet(DLPS035C) like below.
www.ti.com/.../dlpc3433.pdf

We would appreciate if you provide us the related information of the typ value like this datasheet(DLPS035C) to clarify our customers confusion.

Best regards,

Hello User,

Unfortunately we don't have separate measurement for all 3 1.1 voltages. As previously mentioned these voltages are supplied by one voltage source and therefore no separation is possible.

Best regards,
Nadine

Hi,

 

Thank you for your prompt reply.

 

We understand the situation.

But our customer has already found the difference  in "6.5 Electrical Characteristics" between datasheet  dlpc3435 and dlpc3438.

They sent us a question "Is this typo or not?".

 

For example, As you can see,

  datasheet(dlpc3438) said.

　 V(VDD_PLLM)  typ:4mA , max:7mA  ( Is seems reasonable. )

 

  datasheet(dlpc3435) said.

　 V(VDD_PLLM)  typ:112mA or 85mA , max:6mA  ( It looks pasting the values from upper row.)

 

Please consider the datasheet update to clear the confusion.

 

Best regards,

Hello User,

As mentioned previously the reason for have the same typical values in the DLPC3435 is because of how the current has been measured in this case with one supply.

We can look into it how we can improve that in our next DLPC3435 datasheet release.

Thank you,

Nadine

Hi,

Thank you for your help.
We expect the data sheet update release.

At that time, we'd like to explain the reason to the customer from your explanation.

So, please let me confirm one thing.
We understand "the 3x 1.1V voltages are tied together" which you said means
"V(VDD) + V(VDD_PLLM) + V(VDD_PLLD)" like the description of the data sheet(dlpc3438) "6.5 Electrical Characteristics".
www.ti.com/.../dlpc3438.pdf

If you have any comment, please tell us.

Best regards,

Hello User,

Your understanding is correct all 3 voltages have been measured together for the typical value.

Best regards,

Nadine

Hi,

Thank you for your prompt reply.
This information is very helpful!

Best regards