nxp 公司的TDF8599B是接纳SOI BCDMOS技能的双BTL汽车音频D类放大器,包罗有NDMOST-NDMOST 输出级,接纳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.本京电港论坛文章先容了TDF8599B的主要特点,方框架图以及I2C总线和非I2C总线模式的双BTL应用电路原理图纸, I2C总线模式单BTL应用电路原理图纸和I2C总线模式主从应用电路原理图纸. 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 主要特点: High-efficiency Low quiescent current Operating voltage from 8 V to 24 V Two 4ohm/2ohm capable BTL channels or one 1 ohm capable BTL channel Differential inputs I2C-bus mode with 15 I2C-bus addresses or non-I2C-bus mode operation Clip detect Independent short circuit protection for each channel Advanced short circuit protection for load, GND and supply Load dump protection Thermal foldback and thermal protection DC offset protection Selectable AD or BD modulation Parallel channel mode for high current drive capability Advanced clocking: Switchable oscillator clock source: internal for Master mode or external for Slave mode Spread spectrum mode Phase staggering Frequency hopping No ‘pop noise’ caused by DC output offset voltage I2C-bus mode: DC load detection AC load detection Thermal pre-warning diagnostic level setting Identification of activated protections or warnings Selectable diagnostic information available using pins DIAG and CLIP Qualified in accordance with AEC-Q100 TDF8599B应用: Car audio 图1{京电港论坛}.TDF8599B方框架图 图2{京电港论坛}.TDF8599B非I2C总线模式的双BTL应用电路原理图纸 详情请复制打开此衔接地址: |