KB4863

Supply Voltage                               6.0V
Storage Temperature                     −65˚C to +150˚C
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˚C
Solder Information
Small Outline Package
Vapor Phase (60 sec.)                    215˚C
Infrared (15 sec.)                           220˚C

See AN-450 "Surface Mounting and their Effects on Product Reliablilty" for other methods of soldering
surface mount devices. Thermal Resistance

The KB4863 is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.2W to a 4 load (Note 1) or 2.5W to a 3 load (Note 2) with less than 1.0% THD+N. In addition, the headphone input pin allows the amplifiers to operate in single-ended mode when driving stereo headphones.

Boomer audio power amplifiers were designed specifically to provide high quality output power from a surface mount package while requiring few external components. To simplify audio system design, the KB4863 combines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip.

The KB4863 features an externally controlled, low-power consumption shutdown mode, a stereo headphone amplifier mode, and thermal shutdown protection. It also utilizes circuitry to reduce "clicks and pops" during device turn-on.

Note 1: An KB4863MTE or KB4863LQ that has been properly mounted to a circuit board will deliver 2.2W into 4. The other package options for the KB4863 will deliver 1.1W into 8. See the Application Information sections for further information concerning the KB4863MTE and KB4863LQ.
Note 2: An KB4863MTE or KB4863LQ that has been properly mounted to a circuit board and forced-air cooled will deliver 2.5W into 3.