TLC6C5724-Q1: how to calculate Vcc supply current for TLC6C5724-Q1 and TLC6C5748-Q1

Elec Cheng

Part Number: TLC6C5724-Q1
Other Parts Discussed in Thread: TLC6C5748-Q1,

Hi Expert,

Our customer is considering TLC6C5724-Q1 and TLC6C5748-Q1 for screen displaying. They want to know how to calculate the supply power current. Thus calculating the power dissipation

1. as for TLC6C5748-Q1, what's Icc when output current is 21.4mA? What about 14.5mA? It's not specified in datasheet.

2. as for TLC6C5724-Q1, what's Icc when output current is 34.5mA? What about 24.56mA? It's also not specified in datasheet.

Thanks a lot!

BR,

Elec Cheng

over 2 years ago

0 Zhiqian Wu over 2 years ago

TI__Mastermind 18590 points

Hi, Elec

This is the operation current in the chip. It is hard to calculate this current.

For the power dissipation, this is not the important part, please see the typical current as a reference.

0 Elec Cheng over 2 years ago in reply to Zhiqian Wu

TI__Expert 7055 points

Hi Zhiqian,

Yes, our customer sees the chart. They want to know the supply current under specified output current. Is there a way to know this?

BR,

Elec Cheng

+1 Zhiqian Wu over 2 years ago in reply to Elec Cheng

TI__Mastermind 18590 points

Hi, Elec

It is hard to know this parameter, why they want to know this?

0 Elec Cheng over 2 years ago in reply to Zhiqian Wu

TI__Expert 7055 points

Hi Zhiqian,

They want to evaluate the power consumption. If you really don't have other Icc data, I just let the customer refer to the datasheet example. Thanks!

BR,

Elec Cheng

0 Elec Cheng over 2 years ago in reply to Elec Cheng

TI__Expert 7055 points

Hi Zhiqian,

Is the supply current related to Vout? The example is Vout=0.8V, our customer's case is 3V. thanks a lot!

BR,

Elec Cheng

0 Zhiqian Wu over 2 years ago in reply to Elec Cheng

TI__Mastermind 18590 points

I will reply you in the email and close this topic

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TLC6C5724-Q1: how to calculate Vcc supply current for TLC6C5724-Q1 and TLC6C5748-Q1