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| Part Number | LM4855ITL/NOPB | LM4857ITL/NOPB | LM4856ITL/NOPB | LM4855ITLX/NOPB | LM4845ITL/NOPB | LM4851ITL/NOPB | LM4852ITL/NOPB | LM48555TL/NOPB | LM48557TL/NOPB |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | National Semiconductor | Texas Instruments | Texas Instruments | National Semiconductor | Texas Instruments | National Semiconductor | National Semiconductor | Texas Instruments |
| Product Status | Obsolete | Active | Obsolete | Obsolete | Active | Obsolete | Obsolete | Active | Active |
| Type | Class AB | Class AB | Class AB | Class AB | - | Class AB | Class AB | Class AB | Class AB |
| Output Type | 1-Channel (Mono) with Stereo Headphones | 2-Channel (Stereo) with Mono and Stereo Headphones | 1-Channel (Mono) with Stereo Headphones | 1-Channel (Mono) with Stereo Headphones | - | 1-Channel (Mono) with Stereo Headphones | 1-Channel (Mono) with Stereo Headphones | 1-Channel (Mono) | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 1.5W x 1 @ 4Ohms; 115mW x 2 @ 32Ohms | 1.6W x 2 @ 4Ohm | 1.5W x 1 @ 4Ohm; 60mW x 2 @ 32Ohm | 1.5W x 1 @ 4Ohms; 115mW x 2 @ 32Ohms | - | 1.5W x 1 @ 4Ohms; 115mW x 2 @ 32Ohms | 1.5W x 1 @ 4Ohm; 60mW x 2 @ 32Ohm | - | - |
| Voltage - Supply | 2.6V ~ 5V | 2.7V ~ 5.5V | 2.6V ~ 5V | 2.6V ~ 5V | - | 2.6V ~ 5V | 2.6V ~ 5.5V | 2.7V ~ 9V | 2.7V ~ 4.5V |
| Features | Depop, Mute, Shutdown, SPI, Thermal Protection, Volume Control | - | Depop, I²C, Mute, Shutdown, Thermal Protection, Volume Control | Depop, Mute, Shutdown, SPI, Thermal Protection, Volume Control | - | Depop, Shutdown, SPI, Thermal Protection, Volume Control | Depop, I²C, Mute, Shutdown, Thermal Protection, Volume Control | - | Depop, Differential Inputs, I²C, Mute, Shutdown, Volume Control |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | - | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | - | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Supplier Device Package | 18-DSBGA | 30-DSBGA | 18-DSBGA | 18-DSBGA | - | 18-DSBGA | 18-uSMD (1.97x2.23) | 12-DSBGA (2x2.5) | 16-DSBGA |
| Package / Case | 18-WFBGA | 30-WFBGA, DSBGA | 18-WFBGA | 18-WFBGA | - | 18-WFBGA | 18-WFBGA | 12-WFBGA, DSBGA | 16-WFBGA, DSBGA |
