This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Part Number: PTH04070W
We would like to control Inhibit(5pin) by Logic signal(High and Low) without Nch MOSFET.
-OUTPUT is Enable at Inhibit pin is High
-OUTPUT is Disable at Inhibit pin is Low
Therefore, I have four questions.
*By the way, we understand that “This control pin has an internal pullup to the input voltage VI”
and “An open-collector or open-drain device is recommended to control this input.”
Can PTH04070WAH receive the voltage more than Input voltage(VI)?
For example, VIN=3.3V, Inhibit =5V
Can PTH04070WAH receive the voltage same as Input voltage(VI)?
For example, VIN=3.3V, Inhibit =3.3V
Could you please let us know ABSOLUTE MAXIMUM RATINGS of Inhibit(5pin) voltage?
Could you please let us know if you have any concern for the following circuit?
There is a footnote (#3) on page 3 that prohibits tying the inhibit pin to Vin (your 3.3V). It should not be tied to a voltage higher than Vin either. Please drive the inhibit pin with an open drain control circuit.
TPSM82810 - new, 6Vin, 4A, high efficiency power module with clock synchronization Now sampling!
We are glad that we were able to resolve this issue, and will now proceed to close this thread.
If you have further questions related to this thread, you may click "Ask a related question" below. The newly created question will be automatically linked to this question.
In reply to Chris Glaser:
Thank you for your prompt reply.
I understand. Thank you very much.
In reply to Hide:
I have one more question.
We would like to connect the inhibit pin to another module's inhibit pin.
Because, we would like to control the inhibit pins by one switch.
(Please refer to the following figure.)
According to datasheet, “Do not tie the inhibit pin to another module's inhibit pin.”.
Therefore, I understand that I can’t use this circuit.
Is my understanding correct?
If yes, could you please let us know the reason?
(For example, if I connect the inhibit pin to another module’s inhibit pin, device is broken / malfunctions etc. )
You are correct. You cannot use this circuit. You must use a switch for each module. The internal circuit which turns on each module is driven from each module's own internal voltages. These voltages must be kept separate.
There may be a newer, better device for your application. What Vin, Vout, and Iout do you need in your application?
Thank you for always kind support.
I would like to use this device because it is very easy to use.
So, I will think about it
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.