TPA3251D2 是一款高性能 D 类功率放大器，它具有 D 类效率并且能够带来真正的高端音质。 该器件特有高级集成反馈设计和专有高速栅极驱动器错误校正功能（PurePath™ 超高清）。 该技术可使器件在整个音频频带内保持超低失真，同时展现完美音质。 该器件最多可驱动 2 个 175W/4Ω 负载和 2 个 220W/3Ω 负载，并且特有一个 2 VRMS 模拟输入接口，支持与高性能 DAC（例如，TI 的 PCM5242）的无缝连接。 除了出色的音频性能外，TPA3251D2 还兼具高功率效率和超低功率级空闲损耗（1W 以下）两大优点。这可以利用 60mΩ MOSFET 以及优化型栅极驱动器方案来实现，该方案相比传统的分立实现方案可显著降低空闲损耗。
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| Power to Bridge Tied Load (Max) (W) |
| Power to Parallel Bridge Tied Load (Max) (W) |
| THD + N @ 1 kHz (%) |
| SNR (dB) |
| Speaker Channels (Max) |
| Power Stage Supply (Max) (V) |
| Analog Supply (V) (Min) |
| Analog Supply (V) (Max) |
| Closed/Open Loop |
| Control Interface |
| Supported Bridge Tied Load (Min) (Ohms) |
| Supported Parallel Bridge Tied Load (Min) (Ohms) |
| Output Power (W) |
| Dynamic Range (dB) |
| Iq (Typ) (mA) |
| Power to Single-Ended Load (Max) (W) |
| TPA3251 | TPA3221 | TPA3244 | TPA3245 | TPA3250 | TPA3255 |
|---|---|---|---|---|---|
| 220 | 145 | 100 | 150 | 130 | 325 |
| 355 | 230 | 160 | 230 | 189 | 600 |
| 0.005 | 0.03 | 0.005 | 0.005 | 0.005 | 0.006 |
| 111 | 108 | 110 | 112 | 110 | 112 |
| 4 | 2 | 4 | 4 | 4 | 4 |
| 36 | 30 | 30 | 30 | 36 | 53.5 |
| 10.8 | 5 | 10.8 | 10.8 | 10.8 | 10.8 |
| 13.2 | 30 | 13.2 | 13.2 | 13.2 | 13.2 |
| Closed | Closed | Closed | Closed | Closed | Closed |
| Hardware | Hardware | Hardware | Hardware | Hardware | Hardware |
| 3 | 4 | 3 | 3 | 4 | 4 |
| 2 | 2 | 2 | 2 | 3 | 2 |
| 175 | 100 | 100 | 115 | 130 | 315 |
| 115 | 112 | 111 | 113 | 112 | 113 |
| 12.5 | 15 | 15 | 12.5 | 24 | |
| 84 | 39 | 55 | 42 | 130 | |
| 立即下单 | 立即下单 | 立即下单 | 立即下单 | 立即下单 | 立即下单 |
