TPA3118D2DAPR中文資料德州儀器數據手冊PDF規(guī)格書

1 Features

1? Supports Multiple Output Configurations

– 2 × 50 W Into a 4-Ω BTL Load at 21 V

(TPA3116D2)

– 2 × 30 W Into a 8-Ω BTL Load at 24 V

(TPA3118D2)

– 2 × 15 W Into a 8-Ω BTL Load at 15 V

(TPA3130D2)

? Wide Voltage Range: 4.5 V to 26 V

? Efficient Class-D Operation

– >90 Power Efficiency Combined With Low

Idle Loss Greatly Reduces Heat Sink Size

– Advanced Modulation Schemes

? Multiple Switching Frequencies

– AM Avoidance

– Master and Slave Synchronization

– Up to 1.2-MHz Switching Frequency

? Feedback Power-Stage Architecture With High

PSRR Reduces PSU Requirements

? Programmable Power Limit

? Differential and Single-Ended Inputs

? Stereo and Mono Mode With Single-Filter Mono

Configuration

? Single Power Supply Reduces Component Count

? Integrated Self-Protection Circuits Including

Overvoltage, Undervoltage, Overtemperature, DCDetect,

and Short Circuit With Error Reporting

? Thermally Enhanced Packages

– DAD (32-Pin HTSSOP Pad Up)

– DAP (32-Pin HTSSOP Pad Down)

? –40°C to 85°C Ambient Temperature Range

2 Applications

? Mini-Micro Component, Speaker Bar, Docks

? After-Market Automotive

? CRT TV

? Consumer Audio Applications

3 Description

The TPA31xxD2 series are stereo efficient, digital

amplifier power stage for driving speakers up to 100

W / 2 Ω in mono. The high efficiency of the

TPA3130D2 allows it to do 2 × 15 W without external

heat sink on a single layer PCB. The TPA3118D2 can

even run 2 × 30 W / 8 Ω without heat sink on a dual

layer PCB. If even higher power is needed the

TPA3116D2 does 2 × 50 W / 4 Ω with a small heatsink

attached to its top side PowerPAD. All three

devices share the same footprint enabling a single

PCB to be used across different power levels.

The TPA31xxD2 advanced oscillator/PLL circuit

employs a multiple switching frequency option to

avoid AM interferences; this is achieved together with

an option of either master or slave option, making it

possible to synchronize multiple devices.

The TPA31xxD2 devices are fully protected against

faults with short-circuit protection and thermal

protection as well as overvoltage, undervoltage, and

DC protection. Faults are reported back to the

processor to prevent devices from being damaged

during overload conditions.