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| Part Number | LM4809LQ/NOPB | LM4809LQX/NOPB | LM4839LQ/NOPB | LM4804LQ/NOPB | LM4805LQ/NOPB | LM4809LD/NOPB |
|---|---|---|---|---|---|---|
| Manufacturer | National Semiconductor | National Semiconductor | Texas Instruments | Texas Instruments | National Semiconductor | Texas Instruments |
| Product Status | Active | Active | Discontinued at Digi-Key | Obsolete | Active | Obsolete |
| Type | Class AB | Class AB | Class AB | Class AB | Class AB | Class AB |
| Output Type | Headphones, 2-Channel (Stereo) | Headphones, 2-Channel (Stereo) | 2-Channel (Stereo) with Stereo Headphones | 1-Channel (Mono) | 1-Channel (Mono) | Headphones, 2-Channel (Stereo) |
| Max Output Power x Channels @ Load | 105mW x 2 @ 16Ohm | 105mW x 2 @ 16Ohm | 2.2W x 2 @ 3Ohm; 95mW x 2 @ 32Ohm | 1.9W x 1 @ 8Ohm | 1.2W x 1 @ 8Ohm | 105mW x 2 @ 16Ohm |
| Voltage - Supply | 2V ~ 5.5V | 2V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 6.1V | 2.7V ~ 6.1V | 2V ~ 5.5V |
| Features | - | - | Bass Boost, Depop, Input Multiplexer, Mute, Shutdown, Thermal Protection, Volume Control | Depop, Short-Circuit and Thermal Protection, Shutdown | Depop, Short-Circuit and Thermal Protection, Shutdown | Depop, Shutdown, Thermal Protection |
| Mounting Type | 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) |
| Supplier Device Package | 8-WQFN (2x2) | 8-WQFN (2x2) | 28-WQFN (5x5) | 28-WQFN (5x5) | 28-WQFN (5x5) | 8-WSON (2.5x2.5) |
| Package / Case | 8-WQFN Exposed Pad | 8-WQFN Exposed Pad | 28-WFQFN Exposed Pad | 28-WFQFN Exposed Pad | 28-WFQFN Exposed Pad | 8-WFDFN Exposed Pad |
