LM4858

Supply Voltage..............  6.0V
Storage Temperature ..−65°C to +150°C
ESD Susceptibility (Note 4) ...... 3.5kV
ESD Machine model (Note 7) .....  250V
Junction Temperature (TJ) ...... 150°C
Solder Information (Note 1)
Small Outline Package
Vapor Phase (60 sec.) .........215°C
Infrared (15 sec.) ............220°C
Thermal Resistance
JA (typ)-MUB10A ......... 194°C/W
JC (typ)-MUB10A.......... 52°C/W
JA (typ)-LDA14A (Note 10) ....56°C/W
JC (typ)-LDA14A ..........4.3°C/W

The LM4858 is an audio power amplifier capable of delivering 1.5W (typ) of continuous average power into a mono 4 bridged-tied load (BTL) with 1% THD+N or 95mW per channel of continuous average power into stereo 32 singleended (SE) loads with 1% THD+N, using a 5V power supply.

The LM4858 can automatically switch between mono BTL and stereo SE modes utilizing a headphone sense pin. It is ideal for any system that provides both a monaural speaker output and a stereo line or headphone output Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4858 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The LM4858 features an externally controlled, micropower consumption shutdown mode and thermal shutdown protection. The unity-gain stable LM4858's gain is set by external gain-setting resistors