LM4731
Description
The LM4731 is a stereo audio amplifier capable of delivering typically 25W per channel of continuous average output power into a 4Ω or 8Ω load with less than 10% THD+N from 20Hz
- 20k Hz. Each amplifier has an independent smooth transition fadein/out mute and a power conserving standby mode which can be controlled by external logic. The LM4731 has short circuit protection and a thermal shut down feature that is activated when the die temperature exceeds 150˚C. The LM4731 also has a under voltage lock out feature for click and pop free power off and on. The LM4731 has a wide operating supply range from +/-10V
- +/-28V allowing for lower cost unregulated power supplies to be used.
Key Specifications j Output Power into 4Ω or 8Ω, 10% THD+N j THD+N at 1k Hz with 2 x 1W into 8Ω j Mute Attenuation j PSRR with f RIPPLE = 120Hz,
25W (typ) 0.02% (typ) 85d B (typ) 50d B (typ) 18V/µs (typ) 4.8m A (typ)
VRIPPLE = 1VRMS j Slew Rate j Standby Current (+/-22V)
Features n Minimal amount of...
