MP7758 Bridged Mono Out

Applications
1

I want to drive an 8 ohm load at precisely 20W. The datasheet gives 0.8V PLIMIT as 5W output for a single channel.

If the same mono input signal was fed to both L and R inputs, could the 8 ohm load be driven to 20W (4 * 5W) at 0.8V PLIMIT by connecting across 1A and 2B output while sending 1B and 2A to GND?

2

Hi D.O.

It is not recommended to do that. Is there a reason why a higher power solution that can support 20W not ok for your application?

Please see the MP7751 | 5V to 26VDD, 2x 20W, Fixed-Frequency Stereo BTL Class-D Audio Amplifier | MPS (monolithicpower.com)

Regards,
Vinh Tran