设为首页 收藏本站
烽火社区 首页 方案 汽车电子 车载娱乐 查看内容
动力系统 底盘与安全 车身电子 车载娱乐 仪表车盘 车联网络

NXPTDF8599B43W汽车音频D类放大方案

2017-11-24 10:56 AM| 发布者: 河源房源信息| 查看: 1411| 评论: 0

摘要: nxp公司的TDF8599B是接纳SOIBCDMOS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 ...

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
图3{京电港论坛}.TDF8599B I2C总线模式双BTL应用电路原理图纸

图4{京电港论坛}.TDF8599B I2C总线模式单BTL应用电路原理图纸

图5{京电港论坛}.TDF8599B I2C总线模式主从(双BTL主和单BTL从)应用电路原理图纸

详情请复制打开此衔接地址:
http://www.nxp.com/acrobat_download/datasheets/TDF8599B_1.pdf


鲜花

握手

雷人

路过

鸡蛋

相关阅读

热点图文
推荐阅读
文章排行
返回顶部