TX75E16: TX75E16

Gavriel Amar1

Prodigy 25 points

Part Number: TX75E16
Other Parts Discussed in Thread: TX7516

Hello,

I am looking for technical support regarding Ultra Sound Pulser.

we're interesting in driving 16 capacitive elements (MEMS) - at the same time.

When the capacitance of each element is: 50pF

The frequency: 400 KHz

And the output voltage (on each element): 50Vp-p, they will be happy if it is possible to reach 80Vp-p.

Note: there is no need for Rx function

Summery table:

Parameter	Min	Nice to have
Capacitance load per 8 output channels (pF)	250	400
Voltage	50	80
Freq. kHz	400	400

Q: Is it possible for the package not to reach the limit of power dissipation on the packaging, and maximum heat at the semiconductor junction?

over 1 year ago

0 Shabbir Amjhera Wala over 1 year ago

TI__Expert 4701 points

Hi,

Above can be supported easily by TX75E16. Since this is NDA restricted part, we request you to reach out at support_us_afe_tx@list.ti.com mail group to get datasheet access.

Thanks!

Regards,

Shabbir

0 Gavriel Amar1 over 1 year ago in reply to Shabbir Amjhera Wala

Prodigy 25 points

Thank you Shabbir,

As you mentioned I still don't have the full data sheets.
I would appreciate it if you could briefly show me the calculation you did that shows that TX75E16 can simultaneously drive 8 (16) capacitor elements load of 50pF at 400Khz and a voltage of 50-80Vp-p
Gavriel

0 Shabbir Amjhera Wala over 1 year ago in reply to Gavriel Amar1

TI__Expert 4701 points

You can get the datasheet access by dropping an email on support_us_afe_tx@list.ti.com . You need to provide company background and project details.

TX7516 can deliver 2A of current per channel. For your case load is 50pf. You can easily generate 400kHz waveform with 2A pulser drive.

Thanks!

Regards,

Shabbir

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TX75E16: TX75E16