Texas Instruments SLOU082 manual Plug-N-Play Platform Power Requirements and Connections

Page 17

Plug-N-Play Platform Power Requirements and Connections

3.2 Plug-N-Play Platform Power Requirements and Connections

The TPA032D03 mono class-D audio power amplifier evaluation module is designed to operate from a supply voltage between 9 V and 14 V. For best performance, the module should be operated at 12 V.

The TI plug-n-play audio amplifier evaluation platform provides several options for powering the TPA032D03 class-D EVM. Table 3±1 shows the platform jumper and switch settings for each power source option (see the User's Guide for the TI plug-n-play audio amplifier platform, TI Literature Number SLOU011 for more information). The TPA032D03 class-D EVM requires no setup for power source selection.

Table 3±1. Platform Jumper and Switch Settings for the TPA032D03 EVM Power Inputs

POWER TYPE (Note 2)

JP1

JP2

JP3

JP4

JP5

JP6

JP7

JP8

S1

S2 (Note 3)

S3

 

 

 

 

 

 

 

 

 

 

 

 

VCC (J1)

ON

OFF

OFF

ON

ON

Mute

X

Lo

ON

OFF

U5

 

 

 

 

 

 

 

 

 

 

 

 

AC/DC (J2)

OFF

ON

OFF

ON

ON

Mute

X

Lo

ON

OFF

U5

Notes: 1) ON = Jumper installed, OFF = Jumper NOT Installed, X = Don't care

2)Install a voltage regulator EVM (SLVP097) in platform socket U6 for VDD power to EVM control inputs.

3)Set to ON when Tone Control Board SLOP109 is installed in U1, otherwise set to OFF.

Although the TPA032D03 amplifier IC draws approximately 1.6 A from the power supply during continuous full power output, peak current draw can be as high as 2.3 A. Any power supply connected to the platform should be capable of providing 2.3 A (peak) to avoid clipping of the output signal during voltage peaks. Current consumption driving speakers at normal listening levels is typically 0.1 A or less.

A VDD supply of 5 V is required for normal operation of the TPA032D03 EVM. VDD can either be applied to the platform VDD power input terminals (J6) or a voltage regulator (SLVP097 or equiv.) can be installed in platform socket U6 to provide VDD from the platform VCC supply.

The platform is equipped with overvoltage and reverse-polarity supply voltage input protection in the form of fused crowbar circuits.

-VDD voltage applied to platform screw terminals J6 MUST NOT exceed the absolute maximum rating for the TPA032D03 amplifier IC installed on

the evaluation module (5.5 V) or damage to the IC may result. In no case

should VDD voltage of the incorrect polarity or in excess of 6.0 V be applied to screw terminals J6 of the platform, or the power protection circuit on the VDD line will trip.

-VCC voltage applied to the platform MUST NOT exceed the maximum voltage input specified for the voltage regulator module installed in socket

U6 (12 V for the SLVP097), or damage to the voltage regulator module

may result. In no case should VCC voltage applied to the platform exceed 15 V, or the overvoltage protection circuit on the VCC bus will trip.

Details 3-3

Page 16 Page 18
Image 17
Page 16 Page 18
Contents Users Guide Important Notice Related Documentation From Texas Instruments PrefacePage Contents Tables FiguresIntroduction Feature Highlights Description Typical TPA032D03 Class-D EVM SpecificationsMaximum JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 Quick StartAudio Power PrecautionsPlatform Preparations Quick Start List for PlatformQuick Start List for Stand-Alone Details ±1. The TI Plug-N-Play Audio Amplifier Evaluation Platform Plug-N-Play Platform Power Requirements and Connections Outputs Plug-N-Play Platform Inputs and OutputsInputs TPA032D03 Class-D EVM Test Points Control and Indicator Circuits1 S1 Ð Shutdown Switch Module Switches2 S2 Ð Mute Switch 3 J1 Ð Headphone Jack Mode SwitchPower Connections Using The TPA032D03 Class-D EVM Stand-AloneOutput Connections Controls and IndicatorsInput Connections ±4. TPA032D03 Class-D EVM Bill of Materials TPA032D03 Class-D EVM Bill of MaterialsTPA032D03 class-D EVM schematic is shown in ±4 TPA032D03 Class-D EVM Schematic10 TPA032D03 Class-D EVM PCB Layers ±5. TPA032D03 Class-D EVM Top Assembly±7. TPA032D03 Class-D EVM Top Layer ±9. TPA032D03 Class-D EVM Third Layer Details

SLOU082 specifications

Texas Instruments SLOU082 is a technical document primarily focused on the TPS7A47 device, which is an enhanced, low-noise linear voltage regulator designed for world-class performance in sensitive analog applications. This document explains the features, technologies, and characteristics that set the TPS7A47 apart in the industry.

One of the main features of the TPS7A47 is its ultra-low output noise, boasting a remarkable specification of just 1.2 μVRMS across a bandwidth of 10 Hz to 100 kHz. This characteristic makes it an ideal choice for high-precision, low-noise applications such as RF and audio signal processing, where minimizing noise is crucial for system performance. Additionally, the device offers a wide output voltage range from 1.4 V to 20 V, providing flexibility in various applications.

The TPS7A47 operates with a maximum output current of 1 A, enabling it to support multiple loads efficiently. Its dropout voltage is impressively low, particularly at light load conditions, ensuring high-efficiency performance in battery-powered applications. This aspect significantly extends battery life, making it suitable for portable devices.

Another highlight is the PowerPAD package offered for the TPS7A47, which enhances thermal performance and simplifies PCB design. The integration of thermal protection ensures the regulator operates safely under various conditions, preventing potential damage due to overheating.

The TPS7A47 also includes features such as reverse current protection, which prevents current from flowing back into the input when the output voltage exceeds the input voltage. This feature enhances reliability and extends the longevity of the device in various circuit configurations.

In terms of control, the TPS7A47 utilizes a low-dropout architecture, ensuring steady voltage regulation with minimal input-to-output voltage differential. It also supports a wide range of capacitor types, which allows for flexibility in component selection in layout design.

Overall, the Texas Instruments SLOU082 document on the TPS7A47 provides detailed insights into one of the most effective voltage regulation solutions available today. With exceptional noise performance, a versatile voltage range, robust thermal management, and reliability characteristics, the TPS7A47 is an exemplary choice for engineers and designers aiming to achieve high-performance analog systems.
Top Page Image Contents