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TPA3126D2 50-W Stereo, Analog-Input, Class-D Audio Amplifier with Low, 15-mA Idle Current and AM Avoidance
SLOS942
April 2018
TPA3126D2
PRODUCTION DATA.
CONTENTS
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TPA3126D2 50-W Stereo, Analog-Input, Class-D Audio Amplifier with Low, 15-mA Idle Current and AM Avoidance
1
Features
2
Applications
3
Description
Device Images
TPA3126 and TPA3116 Idle Current
Simplified Application Circuit
4
Revision History
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
DC Electrical Characteristics
7.6
AC Electrical Characteristics
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Gain Setting and Master and Slave
8.3.2
Input Impedance
8.3.3
Startup and Shutdown Operation
8.3.4
PLIMIT Operation
8.3.5
GVDD Supply
8.3.6
BSPx and BSNx Capacitors
8.3.7
Differential Inputs
8.3.8
Device Protection System
8.3.9
DC Detect Protection
8.3.10
Short-Circuit Protection and Automatic Recovery Feature
8.3.11
Thermal Protection
8.3.12
Device Modulation Scheme
8.3.12.1
BD Modulation
8.3.13
Efficiency: LC Filter Required with the Traditional Class-D Modulation Scheme
8.3.14
Ferrite Bead Filter Considerations
8.3.15
When to Use an Output Filter for EMI Suppression
8.3.16
AM Avoidance EMI Reduction
8.4
Device Functional Modes
8.4.1
Mono PBTL Mode
8.4.2
Mono BTL Mode (Single Channel Mode)
9
Application and Implementation
9.1
Application Information
9.1.1
Typical Application
9.1.1.1
Design Requirements
9.1.1.2
Detailed Design Procedure
9.1.1.2.1
Select the PWM Frequency
9.1.1.2.2
Select the Amplifier Gain and Master/Slave Mode
9.1.1.2.3
Select Input Capacitance
9.1.1.2.4
Select Decoupling Capacitors
9.1.1.2.5
Select Bootstrap Capacitors
9.1.1.3
Application Curves
10
Power Supply Recommendations
10.1
Power Supply Mode
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
11.3
Heat Sink Used on the EVM
12
Device and Documentation Support
12.1
Device Support
12.1.1
Development Support
12.2
Receiving Notification of Documentation Updates
12.3
Related Documentation
12.4
Community Resources
12.5
Trademarks
12.6
Electrostatic Discharge Caution
12.7
Glossary
13
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
DAD|32
MPDS503A
Thermal pad, mechanical data (Package|Pins)
DAD|32
PPTD344A
Orderable Information
slos942_oa
slos942_pm
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