LM4914

If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications.
Supply Voltage ..........................................................6.0V
Storage Temperature............................. −65 to +150
Input Voltage.................................... −0.3V to V_DD +0.3V
Power Dissipation (Note 4).................. Internally Limited
ESD Susceptibility (Note 5) ....................................2000V
ESD Susceptibility (Note 6)...................................... 200V
Junction Temperature ............................................150
Solder Information
Small Outline Package
Vapor Phase (60sec)............................................. 215
Infrared (15sec).................................................... 220
See AN-450 "Surface Mounting
and their Effects on Product
Reliability" for other methods of
soldering surface-mount devices.
Thermal Resistance
JA (typ) - MXF10A .............................................46/W

The unity-gain stable LM4914 is both a mono differential output (for bridge-tied loads, or BTL) audio power amplifier and a single-ended (SE) stereo headphone amplifier. Operating on a single 5V supply, the mono BTL mode delivers 1W into an 8 load. In SE stereo mode, the amplifier delivers 85mW to 32 loads. The LM4914 features circuitry that suppresses output transients ("clicks and pops").

The LM4914 is designed for notebook and other handheld portable applications. It delivers high quality output power from a surface-mount package and requires few external components. The LM4914 is pin and functionally compatible with the TPA0253.

Other features include an active-low micro-power shutdown mode and thermal shutdown protection.

The LM4914 is available in a space efficient 10-lead exposed-DAP TSSOP package.