Hello, I have some valuable information regarding the TPA3251 chip. I am currently working on designing a speaker system, and I would like to inquire about the technical feasibility of my project before proceeding with an order. I am seeking the assistance of an expert firm.
My design concept involves utilizing the TPA3251 as a base to create three speakers using a single chip. The configuration would consist of one speaker equipped with a tweeter and a mid/bass driver, another with two parallel mid/bass drivers, and the last one with three parallel mid/bass drivers. This last arrangement would result in a final impedance of 2.66 ohms.
Ideally, I would like to know if there are any issues that may arise when operating the speakers in the 2.66 ohm configuration, considering the datasheet specifies a minimum impedance of 2.7 ohms. Additionally, the nominal impedance Re of the drivers would be 6.4 ohms, so minimal impedance of 2.13 ohms, and power requirements ranging from 30-40W for the tweeter and 120-140W for the other speakers. Each Mid bass need max 40-50w in every config.
I would greatly appreciate your expert opinion on whether the TPA3251 can handle this configuration effectively and if it meets the power requirements while operating in BTL mode. I search to have a single base to made the 3 version to reduce dev cost and order more of the same unit in factory.Thank you in advance for your assistance.
