TPA3118D2DAPR中文资料德州仪器数据手册PDF规格书

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.