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| Part Number | LM4891M/NOPB | LM4892M/NOPB | LM4891MM/NOPB | LM4891MX/NOPB | LM4881M/NOPB | LM4890M/NOPB |
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Active | Active |
| Type | Class AB | Class AB | Class AB | Class AB | Class AB | Class AB |
| Output Type | 1-Channel (Mono) | 1-Channel (Mono) with Mono Headphones | 1-Channel (Mono) | 1-Channel (Mono) | Headphones, 2-Channel (Stereo) | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 1W x 1 @ 8Ohm | 1W x 1 @ 8Ohm; 90mW x 1 @ 32Ohm | 1W x 1 @ 8Ohm | 1W x 1 @ 8Ohm | 300mW x 2 @ 8Ohm | 1W x 1 @ 8Ohm |
| Voltage - Supply | 2.2V ~ 5.5V | 2.2V ~ 5.5V | 2.2V ~ 5.5V | 2.2V ~ 5.5V | 2.7V ~ 5.5V | 2.2V ~ 5.5V |
| Features | Depop, Shutdown, Thermal Protection | Depop, Shutdown, Thermal Protection | Depop, Shutdown, Thermal Protection | Depop, Shutdown, Thermal Protection | Shutdown, Thermal Protection | 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-SOIC | 8-SOIC | 8-VSSOP | 8-SOIC | 8-SOIC | 8-SOIC |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
