20W audio amplifier eliminates need for external heatsink
Operating at an efficiency of up 95%, the PAM8320 20W mono Class D audio amplifier has been announced today by Diodes Inc. Coming in a space-saving SOP16 exposed pad surface mount package, the PAM8320 eliminates the need for an external heatsink, saving system space and reducing BOM cost.
The PAM8320’s low impedance drive capability enables it to deliver 20W into a 4Ω bridge-tied-load speaker, making it suitable for a variety of high power, small enclosure speakers in wireless headphones, PCs and docking station products. PAM8320’s wide 4.5V to 15V supply range also means it will cater equally well for battery cell and mains-driven consumer audio systems.
To help increase product reliability, the amplifier features a suite of safeguard circuitry, comprising over-voltage and under-voltage lockout protection, thermal and short circuit protection with auto recovery, as well as anti-pop circuitry to keep the speaker safe during power-on and power-off sequences.
The PAM8320 20W mono Class D amplifier from Diodes Incorporated is priced at $0.5 USD each in 10k quantities.
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