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: TLV2402
We are using a TLV2402IDR in a battery balance circuit and VCC is connected to +12V and GND is connected to ground in our setup. While testing the board, the amplifier was outputting +4V and when a tech probed the board to look at a signal, pin 8 (VCC) was shorted to pin 7 (OUT) momentarily. I could not specifically find a mention of output short circuit protection for this device, so I am not sure if the part was stressed at all. It appears to still be working fine, but we will replace it if there is any possibility of damage. I have read that other amplifiers have protections such that any short to a voltage between VCC and ground is OK, but if you exceed VCC or GND there may be damage.
Thanks for any information,
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 Tushar Jog:
Yes, the tech touched pins 7 and 8, so that connected +12V to the output on pin 7. It was not clear in the datasheet if that +12V supply, which can source several amps of current, would harm that output.
In reply to Gary Gravante:
This is a micro-power device. The datasheet curves show that the output has current limiting (Figs 11-16). Current limit is above 250uA.
Damage usually occurs due to power dissipation (overheating of the die). 12V*250uA = 3mW. Shorting the output for a few seconds would not cause the die to heat up enough to do any damage.
I would not expect it to do any damage - but you may replace the device if there are any doubts.
Regards,Paul GroheTI Comparators (LAMPS-CMPS) Applications Group
In reply to Paul Grohe:
Thank you Paul - I appreciate the information! It was much less than 1 second, so I think we will be fine.
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.