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| Part Number | TDA7451 | TDA7454 | TDA7481 | TDA7851 |
|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete |
| Type | Class AB | Class AB | Class D | Class AB |
| Output Type | 2-Channel (Stereo) or 4-Channel (Quad) | 4-Channel (Quad) | 1-Channel (Mono) | 4-Channel (Quad) |
| Max Output Power x Channels @ Load | 32W x 2 @ 4Ohm; 9.5W x 4 @ 4Ohm | 60W x 4 @ 2Ohm | 18W x 1 @ 4Ohm | - |
| Voltage - Supply | - | 8V ~ 18V | ±10V ~ 25V | - |
| Features | Depop, Mute, Short-Circuit and Thermal Protection, Standby | Mute, Short-Circuit and Thermal Protection, Standby | Mute, Short-Circuit and Thermal Protection, Standby | - |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Operating Temperature | -40°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | 0°C ~ 70°C (TA) | - |
| Supplier Device Package | 25-Flexiwatt (Vertical) | 25-Flexiwatt (Vertical) | 15-Multiwatt | 25-Flexiwatt (Horizontal) |
| Package / Case | 25-Flexiwatt (Formed Leads) | 25-Flexiwatt (Formed Leads) | Multiwatt-15 (Vertical, Bent and Staggered Leads) | 25-Flexiwatt (Formed Leads) |
