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| Part Number | LM4891MM/NOPB | LM4893MM/NOPB | LM4894MM/NOPB | LM4898MM/NOPB | LM4895MM/NOPB | LM4892MM/NOPB | LM4897MM/NOPB | LM4899MM/NOPB | LM4891MX/NOPB | LM4881MM/NOPB | LM4890MM/NOPB | LM4891M/NOPB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | National Semiconductor | National Semiconductor | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Obsolete | Obsolete | Active | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Active | Active | Obsolete |
| Type | Class AB | Class AB | Class AB | Class AB | Class AB | Class AB | Class AB | Class AB | Class AB | Class AB | Class AB | Class AB |
| Output Type | 1-Channel (Mono) | 1-Channel (Mono) | 1-Channel (Mono) | 1-Channel (Mono) | 1-Channel (Mono) | 1-Channel (Mono) with Mono Headphones | 1-Channel (Mono) | 1-Channel (Mono) | 1-Channel (Mono) | Headphones, 2-Channel (Stereo) | 1-Channel (Mono) | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 1W x 1 @ 8Ohm | 1.1W x 1 @ 8Ohm | 1.4W x 1 @ 4Ohm | 1.4W x 1 @ 4Ohm | 1.4W x 1 @ 4Ohm | 1W x 1 @ 8Ohm; 90mW x 1 @ 32Ohm | 1.1W x 1 @ 8Ohm | 1.4W x 1 @ 4Ohm | 1W x 1 @ 8Ohm | 300mW x 2 @ 8Ohm | 1W x 1 @ 8Ohm | 1W x 1 @ 8Ohm |
| Voltage - Supply | 2.2V ~ 5.5V | 2.2V ~ 5.5V | 2.2V ~ 5.5V | 2.4V ~ 5.5V | 2.2V ~ 5.5V | 2.2V ~ 5.5V | 2.6V ~ 5.5V | 2.4V ~ 5.5V | 2.2V ~ 5.5V | 2.7V ~ 5.5V | 2.2V ~ 5.5V | 2.2V ~ 5.5V |
| Features | Depop, Shutdown, Thermal Protection | Depop, Shutdown, Thermal Protection | Depop, Differential Inputs, Shutdown, Thermal Protection | Depop, Differential Inputs, Shutdown, Thermal Protection | Depop, Differential Inputs, Shutdown, Thermal Protection | Depop, Shutdown, Thermal Protection | Depop, Shutdown, Thermal Protection | Depop, Differential Inputs, Shutdown, Thermal Protection | Depop, Shutdown, Thermal Protection | Shutdown, Thermal Protection | Depop, Shutdown, Thermal Protection | Depop, Shutdown, Thermal Protection |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | 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) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Supplier Device Package | 8-VSSOP | 10-VSSOP | 10-VSSOP | 10-VSSOP | 10-VSSOP | 8-VSSOP | 10-VSSOP | 10-VSSOP | 8-SOIC | 8-VSSOP | 8-VSSOP | 8-SOIC |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-SOIC (0.154", 3.90mm Width) |
