I recently came into the possession of a (Sanyo) LA4645N quad / BTL chip amp. I figured it would be a good Sunday project to see if I could get it working as a stand-alone amp. I was able to download the data sheet for the chip but the only version available seems to be incomplete - that is, there are several pages missing. I wanted to configure the chip in its BTL format but the incomplete data sheet does not show that configuration; it only shows the quad configuration. I have contacted Sanyo but they simply blow me off saying "the chip is no longer being technically supported". Thank you Sanyo!! I can provide the incomplete data sheet if anyone is interested in helping me. All suggestions and advice would be greatly appreciated.
The audio amplifier E2E forum would be pleased to help you use a Texas Instruments audio power amplifier in BTL mode. I doubt that they would be interested in supporting Sanyo's obsolete product.
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