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.
Can the DRV8662 be used to drive a piezo buzzer as an alarm?
The traditional alarm circuit uses an inductor or auto transformer in parallel with the piezo buzzer to resonate and generate a high voltage.
Is the DRV8662 a suitable alternative?
See the schematic at the top of page 6 for the existing approach to driving the piezo buzzer:
See also the schematic:
The question is whether the TI IC can replace the T1 autotransformer which is a physically large part?
from software perspective, you may need some PWM or DAC output to feed the DRV8662.
please check the below diagrams.
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.
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.