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: ISO7821
HelloA static electricity test of 15 kV aerial discharge was conducted on a system using ISO 7821, and the phenomenon occurred that the VOL of OUTB of ISO 7821 became 2.5 V.5 V is applied to Vdd 2.When the power is turned on again, the VOL becomes 0 V without any problem.
What is the mechanism of VOL becoming 2.5 V?
Although 15 kV is not directly applied to ISO 7821, there is a possibility of wraparound. Since the ESD rating of ISO7821 does not correspond to 15 kV, they are planning to take measures against static electricity.Please tell me if there is a recommended countermeasure circuit.Best Regards,Ryuji Asaka
To understand more in detail about the test condition, can you please share the schematic/block diagram explaining the setup, strike point, Earth connection and the blocks before and after ISO7821.
Also, please do share your email address if you wish to share the schematic over mail.
In reply to Tejas Hommaradi:
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. 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 respect to these materials. 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.