ZHCSH28B
September 2017 – December 2017
TPA3221
PRODUCTION DATA.
1
特性
2
应用
3
说明
简化原理图
4
修订历史记录
5
Device Comparison Table
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Audio Characteristics (BTL)
7.7
Audio Characteristics (PBTL)
7.8
Typical Characteristics, BTL Configuration, AD-mode
7.9
Typical Characteristics, PBTL Configuration, AD-mode
8
Parameter Measurement Information
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagrams
9.3
Feature Description
9.3.1
Internal LDO
9.3.1.1
Input Configuration, Gain Setting And Master / Slave Operation
9.3.2
Gain Setting And Master / Slave Operation
9.3.3
AD-Mode and HEAD-Mode PWM Modulation
9.3.4
Oscillator
9.3.5
Input Impedance
9.3.6
Error Reporting
9.4
Device Functional Modes
9.4.1
Powering Up
9.4.1.1
Startup Ramp Time
9.4.2
Powering Down
9.4.2.1
Power Down Ramp Time
9.4.3
Device Reset
9.4.4
Device Soft Mute
9.4.5
Device Protection System
9.4.5.1
Overload and Short Circuit Current Protection
9.4.5.2
Signal Clipping and Pulse Injector
9.4.5.3
DC Speaker Protection
9.4.5.4
Pin-to-Pin Short Circuit Protection (PPSC)
9.4.5.5
Overtemperature Protection OTW and OTE
9.4.5.6
Undervoltage Protection (UVP), Overvoltage Protection (OVP) and Power-on Reset (POR)
9.4.5.7
Fault Handling
10
Application and Implementation
10.1
Application Information
10.2
Typical Applications
10.2.1
Stereo BTL Application
10.2.1.1
Design Requirements
10.2.1.2
Detailed Design Procedures
10.2.1.2.1
Decoupling Capacitor Recommendations
10.2.1.2.2
PVDD Capacitor Recommendation
10.2.1.2.3
BST capacitors
10.2.1.2.4
PCB Material Recommendation
10.2.2
Typical Application, Differential (2N), AD-Mode PBTL (Outputs Paralleled before LC filter)
10.2.2.1
Design Requirements
10.2.3
Typical Application, Differential (2N), AD-Mode PBTL (Outputs Paralleled after LC filter)
10.2.3.1
Design Requirements
11
Power Supply Recommendations
11.1
Power Supplies
11.1.1
VDD Supply
11.1.2
AVDD and GVDD Supplies
11.1.3
PVDD Supply
11.1.4
BST Supply
12
Layout
12.1
Layout Guidelines
12.2
Layout Examples
12.2.1
BTL Application Printed Circuit Board Layout Example
12.2.2
PBTL (Outputs Paralleled before LC filter) Application Printed Circuit Board Layout Example
12.2.3
PBTL (Outputs Paralleled after LC filter) Application Printed Circuit Board Layout Example
13
器件和文档支持
13.1
文档支持
13.2
接收文档更新通知
13.3
社区资源
13.4
商标
13.5
静电放电警告
13.6
Glossary
14
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
DDV|44
MPDS169G
散热焊盘机械数据 (封装 | 引脚)
DDV|44
PPTD233A
订购信息
zhcsh28b_oa
zhcsh28b_pm
1
特性
7V 到 30V 宽电源电压操作
立体声 (2 x BTL) 和单声道 (1 x PBTL) 操作
THD+N 为 10% 时的输出功率
105W/4Ω,BTL 立体声配置
112W/3Ω,BTL 立体声配置
208W/2Ω,PBTL 单声道配置
THD+N 为 1% 时的输出功率
88W/4Ω,BTL 立体声配置
100W/3Ω,BTL 立体声配置
170W/2Ω,PBTL 单声道配置
用于可选单电源操作的 5V 栅极驱动器或内置 LDO
闭环反馈设计
高达 100kHz 的信号带宽,用于高清源的高频成分
1W/4Ω 时的 THD+N 为 0.02%
PSRR 为 60dB(BTL,无输入信号)
输出噪声(A 加权)< 75µV
SNR(A 加权)> 108dB
AD 或 HEAD 调制方案
低功耗操作模式
待机模式:静音,< 1mA 关断
低空闲电流 HEAD 调制方案
单通道 BTL 操作
多输入操作,可简化前置放大器设计
差动或单端模拟输入
可选增益:18dB、24dB、30dB、34dB
集成式保护:欠压、过压、逐周期电流限制、短路、削波检测、过热警告和关断以及直流扬声器保护
90% 高效 D 类操作 (4Ω)
散热垫位于封装的底部
具有电压和功率级别选项的引脚兼容系列器件