双路音频放大器 Dual Audio Amplifier
The TPA0122 is a stereo audio power amplifier in a 24-pin TSSOP thermally enhanced package capable of delivering 2.6 W of continuous RMS power per channel into 3- loads. This device minimizes the number of external components needed, simplifying the design, and freeing up board space for other features. When driving 1 W into 8- speakers, the TPA0122 has less than 0.5% THD+N across its specified frequency range.
Included within this device is integrated depop circuitry that virtually eliminates transients that cause noise in the speakers.
Amplifier gain is internally configured and controlled by two terminals GAIN0 and GAIN1. BTL gain settings of 2, 6, 12, and 24 V/V are provided, while SE gain is always configured as 1 V/V for headphone drive. An internal input MUX allows two sets of stereo inputs to the amplifier. In notebook applications, where internal speakers are driven as BTL and the line outputs often headphone drive are required to be SE, the TPA0122 automatically switches into SE mode when the SE/BTL\ input is activated and reduces the gain to 1 V/V.
The TPA0122 consumes only 18 mA of supply current during normal operation. A miserly shutdown mode reduces the supply current to less than 150 µA.
The PowerPAD package PWP delivers a level of thermal performance that was previously achievable only in TO-220-type packages. Thermal impedances of approximately 35°C/W are truly realized in multilayer PCB applications. This allows the TPA0122 to operate at full power into 8- loads at an ambient temperature of 85°C.
供电电流 25 mA
电路数 1
耗散功率 2700 mW
静态电流 18.0 mA
输出功率 2.6 W
工作温度Max 85 ℃
工作温度Min -40 ℃
耗散功率Max 2700 mW
电源电压 4.5V ~ 5.5V
安装方式 Surface Mount
引脚数 24
封装 HTSSOP-24
长度 7.8 mm
宽度 4.4 mm
高度 1.15 mm
封装 HTSSOP-24
工作温度 -40℃ ~ 85℃ TA
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
TPA0122PWPR TI 德州仪器 | 当前型号 | 当前型号 |
TPA0122PWP 德州仪器 | 完全替代 | TPA0122PWPR和TPA0122PWP的区别 |
TPA0122PWPG4 德州仪器 | 完全替代 | TPA0122PWPR和TPA0122PWPG4的区别 |