NXP TDF8599B 43W汽车音频D类放大方案
NXP 公司的TDF8599B是采用SOI BCDMOS技术的双BTL汽车音频D类放大器,包括有NDMOST-NDMOST 输出级,采用I2C总线控制,工作电压从8V到24V,高效率和低静态电流,具有双4欧姆/2欧姆的BTL通路或单个1欧姆BTL通路,差分输入.本文介绍了TDF8599B的主要特性,方框图以及I2C总线和非I2C总线模式的双BTL应用电路图, I2C总线模式单BTL应用电路图和I2C总线模式主从应用电路图.
TDF8599B:I2C-bus controlled dual channel 43 W/4 W, single channel 85 W/1 W class-D power amplifier with load diagnostics
The TDF8599B is a dual Bridge-Tied Load (BTL) car audio amplifier comprising an NDMOST-NDMOST output stage based on SOI BCDMOS technology. Low power dissipation enables the TDF8599B high-efficiency, class-D amplifier to be used with a smaller heat sink than those normally used with standard class-AB amplifiers.
The TDF8599B can operate in either non-I2C-bus mode or I2C-bus mode. When in I2C-bus mode, DC load detection results and fault conditions can be easily read back from the device. Up to 15 I2C-bus addresses can be selected depending on the value of the external resistor connected to pins ADS and MOD.
When pin ADS is short circuited to ground, the TDF8599B operates in non-I2C-bus mode.Switching between Operating mode and Mute mode in non-I2C-bus mode is only possible using pins EN and SEL_MUTE.
TDF8599B 主要特性:..
