GENERAL DEscriptION

The SGM4863 is a dual bridge-connected audio power amplifier which operates from 2.8V to 5.5V supply voltage. It can deliver 2.5W into a 3Ω load or 2.1W into a 4Ω load from 5V supply at THD+N = 1%. It is designed for portable applications. When driving stereo headphones, the amplifiers can operate in single-ended mode at the headphone input pin.

The SGM4863 integrates dual bridge speaker amplifier and stereo headphone amplifier on one chip to simplify design.

The SGM4863 has pop/click suppression circuitry, low power consumption shutdown mode and thermal shutdown protection.

The SGM4863 is available in Green TSSOP-20 (Exposed Pad), TQFN-3×3-20L, TSSOP-16 (Exposed Pad), SOIC-16 and DIP-16 packages. It operates over an ambient temperature range of -40℃ to +85℃.

FEATURES

• Supply Voltage Range: 2.8V to 5.5V

• 2.5W into 3Ω Load from 5V Power Supply at THD+N = 1% (Typical, per Channel)

• 2.1W into 4Ω Load from 5V Power Supply at THD+N = 1% (Typical, per Channel)

• 1.3W into 8Ω Load from 5V Power Supply at THD+N = 1% (Typical, per Channel)

• Shutdown Current: 0.03μA (TYP)

• Stereo Headphone Amplifier Mode

• Pop/Click Suppression Circuitry

• Unity-Gain Stable

• Thermal Shutdown Protection

• -40℃ to +85℃ Operating Temperature Range

• Available in Green TSSOP-20 (Exposed Pad), TQFN-3×3-20L, TSSOP-16 (Exposed Pad), SOIC-16 and DIP-16 Packages

APPLICATIONS

TVs

Multimedia Monitors

Portable and Desktop Computers