Datasheet > TPA3156D2DADR

TPA3156D2DADR

更新时间： 2024-11-21 11:15:15

品牌	Logo	应用领域
德州仪器 - TI		放大器音频放大器
页数	文件大小	规格书
41页	3347K
描述
70W 立体声、140W 单声道、4.5V 至 26V、模拟输入 D 类音频放大器，低空闲电流 \| DAD \| 32 \| -40 to 85

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TPA3156D2

SLOS992 –DECEMBER 2017

TPA3156D2 2 x 70-W, Analog Input, Stereo, Class-D Audio Amplifier With Low Idle Power

Dissipation

1 Features

3 Description

The TPA3156D2 has low idle power loss and helps to

extend the battery life of Bluetooth/Wireless speakers

and other battery-powered audio systems. The high

efficiency of the TPA3156D2 device allows it to do 2

× 70 W with external heat sink on a dual layer PCB.

This device integrates an efficiency boost mode,

which dynamically reduces the current ripple of the

external LC filter and the idle current .

•

2 × 70 W Into a 4-Ω BTL Load at 24 V

Wide Voltage Range: 4.5 V to 26 V

Efficient Class-D Operation

–

Very Low Idle Current: <23 mA for

recommended LC filter configurations

–

Greater than 90% Power Efficiency

Adaptive Modulation Schemes based on

Output Power

The TPA3156D2 advanced oscillator/PLL circuit

employs a multiple switching frequency option to

avoid AM interferences, which is achieved together

with an option of either master or slave option,

making it possible to synchronize multiple devices.

•

Multiple Switching Frequencies

–

AM Avoidance

Master and Slave Synchronization

300-KHz to 1.2-MHz Switching Frequency

The TPA3156D2 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.

Feedback Power-Stage Architecture With High

PSRR Reduces PSU Requirements

•

Programmable Power Limit

Parallel BTL Mode and Mono-Channel Mode

Support

Device Information⁽¹⁾

•

Supports Both Single and Dual Power Supply

Modes

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPA3156D2

DAD (32)

11.00 mm × 6.20 mm

Integrated Self-Protection Circuits Including

Overvoltage, Undervoltage, Overtemperature, DC-

Detect, and Short Circuit With Error Reporting

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

•

Thermally Enhanced Packages

Simplified Application Circuit

–

DAD (32-Pin HTSSOP Pad Up)

Çꢀ!3156ꢁ2

Pin to Pin Compatible with TPA3116D2 and

TPA3126D2

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Cilter

2 Applications

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•

Bluetooth/Wireless Speakers

Soundbars

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4.5ë t 26ë

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Mini-Micro Component, Docks

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...41

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