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TPA0211是一款2 W单声道桥接负载(BTL)放大器,设计用于驱动低至4Ω阻抗的扬声器。该器件非常适用于小型无线通信器,笔记本电脑,PDA,任何地方都需要单声道扬声器和立体声耳机。从5 V电源开始,TPA0211可为4Ω扬声器提供2 W的功率。
输入级的增益由用户选择的输入电阻和50kΩ内部电阻决定。反馈电阻(A V = -R F /R I )。功率级内部配置为SE模式下增益为-1.25 V /V,BTL模式下增益为-2.5 V /V.因此,放大器的总增益在SE模式下为-62.5kΩ/R I ,在BTL模式下为-125kΩ/R I 。输入端子为高阻抗CMOS输入,可用作求和节点。
TPA0211采用8引脚耐热增强型MSOP-PowerPAD封装(DGN),可在环境温度下工作范围为-40°C至85°C。
Audio Input Type |
Architecture |
Speaker Channels (Max) |
Power Stage Supply (Min) (V) |
Power Stage Supply (Max) (V) |
Output Power (W) |
Load (Min) (ohms) |
SNR (dB) |
THD + N @ 1 kHz (%) |
Iq (Typ) (mA) |
Control Interface |
Closed/Open Loop |
Analog Supply (V) (Min) |
Analog Supply (V) (Max) |
PSRR (dB) |
Operating Temperature Range (C) |
Rating |
TPA0211 | TPA0213 | TPA0233 | TPA0253 |
---|---|---|---|
Analog Input | Analog Input | Analog Input | Analog Input |
Class-AB | Class-AB | Class-AB | Class-AB |
Mono | Mono | Mono | Mono |
2.5 | 2.5 | 2.5 | 2.5 |
5.5 | 5.5 | 5.5 | 5.5 |
2 | 2 | 2 | 1 |
4 | 4 | 4 | 8 |
93 | 93 | 93 | 93 |
0.2 | 0.2 | 0.2 | 0.33 |
4 | 4.2 | 4 | 3.2 |
Hardware | Hardware | Hardware | Hardware |
Open | Closed | Open | Open |
2.5 | 2.5 | 2.5 | 2.5 |
5.5 | 5.5 | 5.5 | 5.5 |
58 | 65 | 58 | 65 |
-40 to 85 | -40 to 85 | -40 to 125 | -40 to 85 |
Catalog | Catalog | Catalog | Catalog |