TB2905HQ 的典型应用是一款专为汽车音频应用而开发的高效 KB 级功率放大器 IC,包含四个 BTL 放大器通道。它采用纯互补DMOS输出级,由P沟道上部和N沟道下部组成,提供47W的最大输出功率(POUT)。在正常工作条件下,KB 类(键控 BTL)放大器产生的热量不到同类 AB 类解决方案的一半。因此,可以设计更小的散热器并保持汽车音响较低的内部温度
说明
-
Typical Application for TB2905HQ is a high-efficiency class KB power amplifier IC developed for car audio applications that incorporates four BTL amplifier channels. It employs a pure complementary DMOS output stage consisting of P-ch upper and N-ch lower sections, offering a maximum output power (POUT) of 47W. Class KB (keyed BTL) amplifiers exhibit less than half the heat generation of comparable class AB solutions under normal operating conditions. Therefore, it is possible to design a smaller heatsink and maintain lower internal temperature in the car audio sets