TI E2E Community
Audio Amplifiers Forum
TCA 2465 power opamp replacement needed MANY 1000's
so i was thinking i could use an OPA2544 on a mini pcba "pin swapper" and appropriate connections for pins that differ from the TCA 2465 to get a 9 pin sip package (5 tca’s were used and whomever designed the circuity that used it simply MONKEYED it!!!!!!!!!!!! Used as fan motor drivers, and environmental control (flapper) contol. They fail like mad and the TCA’s are just not available anymore so I think I could use this chip as a replacement or does anyone have a better thought(s)
HELP -pleeeeeeze! 1000's of units each using 5 tca's (or) opa's
It does look like the OPA2544 is a similar IC, albeit with some better specifications. Without knowing your design requirement details, it looks like the OPA2544 has a higher current limit, slew rate and supply voltage and probably most importantly a lower package thermal resistance for driving power. Based on these specs compared to the TCA 2465, I'm sure that the OPA2544 would perform more than adequately. Another option that you may also want to consider is the LM1876. This is a similar part to the OPA2544 with the added benefit of having a highly protected output stage through its SPiKe Protection. There are some slight specification pluses and minuses with the LM1876 over the OPA2544, so I'll let you evaluate their differences, but either part could replace the TCA2465.
I hope this helps.
Well thanks JD i'll look over the alternate part you suggested - R
The beefed output protection is a welcome addition since whomever designed the darn thing musta had a deal with the chip maker - try to find any?
Thanks a bunch...i'm a laser dude...
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.