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| Part Number | LM4841LQ/NOPB | LM4842LQ/NOPB | LM4851LQ/NOPB | LM4840LQ/NOPB |
|---|---|---|---|---|
| Manufacturer | National Semiconductor | National Semiconductor | Texas Instruments | National Semiconductor |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete |
| Type | Class AB | Class AB | Class AB | Class AB |
| Output Type | 2-Channel (Stereo) with Stereo Headphones | 2-Channel (Stereo) with Stereo Headphones | 1-Channel (Mono) with Stereo Headphones | 2-Channel (Stereo) with Stereo Headphones |
| Max Output Power x Channels @ Load | 2.2W x 2 @ 3Ohm; 95mW x 2 @ 32Ohm | 2.2W x 2 @ 3Ohm; 95mW x 2 @ 32Ohm | 1.5W x 1 @ 4Ohms; 115mW x 2 @ 32Ohms | 2.2W x 2 @ 3Ohm; 95mW x 2 @ 32Ohm |
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.6V ~ 5V | 2.7V ~ 5.5V |
| Features | Depop, Mute, Shutdown, Thermal Protection, Volume Control | Depop, Mute, Shutdown, Thermal Protection, Volume Control | Depop, Shutdown, SPI, Thermal Protection, Volume Control | Depop, Input Multiplexer, Mute, Shutdown, Thermal Protection, Volume Control |
| Mounting Type | 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) |
| Supplier Device Package | 28-WQFN (5x5) | 28-WQFN (5x5) | 24-WQFN (4x5) | 28-WQFN (5x5) |
| Package / Case | 28-FQFN Exposed Pad | 28-FQFN Exposed Pad | 24-WFQFN Exposed Pad | 28-FQFN Exposed Pad |
