The SGM4863 is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.1W into a 4Ω load or 2.5W into a 3Ω load with typically 1% THD+N. In addition, the headphone input pin allows the amplifiers to operate in single-ended mode when driving stereo headphones.
To simplify audio system design, the SGM4863 combines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip.
The SGM4863 features a low power consumption shutdown mode and thermal shutdown protection. It also utilizes circuitry to reduce “pop/click” during device turn-on.
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℃.
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)
Low Shutdown Current: 0.03μA
Operation Supply Voltage: 2.8V to 5.5V
Stereo Headphone Amplifier Mode
“Pop/Click” Suppression Circuitry
Unity-Gain Stable
Thermal Shutdown Protection Circuitry
-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
Multimedia Monitors
Portable and Desktop Computers
Portable Televisions
| Part Number | Status | Package | Pins | Pb-Free | Temp Range |
| SGM4863YPTS20G/TR | Production | TSSOP-20 (Exposed Pad) | 20 | Y | -40℃ to +85℃ |
| SGM4863YTQG20G/TR | Production | TQFN-3×3-20L | 20 | Y | -40℃ to +85℃ |
| SGM4863YPTS16/TR | Production | TSSOP-16 (Exposed Pad) | 16 | Y | -40℃ to +85℃ |
| SGM4863YS16/TR | Production | SOIC-16 | 16 | Y | -40℃ to +85℃ |
| SGM4863YP16 | Production | DIP-16 | 16 | Y | -40℃ to +85℃ |
