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TPA2005D1

更新时间： 2024-09-20 22:42:03

品牌	Logo	应用领域
德州仪器 - TI		放大器功率放大器 LTE
页数	文件大小	规格书
22页	283K
描述
1.1 W MONO FILTER FREE CLASS D AUDIO POWER AMPLIFIER

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数据手册
替代型号

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TPA2005D1 数据手册

www.ti.com

ꢀ ꢁꢂ ꢃꢄꢄ ꢅꢆ ꢇ

SLOS369B – JULY 2002 – REVISED DECEMBER 2002

ꢇꢈ ꢇꢉ ꢊ ꢋꢌ ꢍ ꢌ ꢎ ꢏꢐꢀ ꢑꢒ ꢉꢎ ꢒ ꢑꢑ ꢓ ꢐꢂꢔ ꢔꢉ ꢆ ꢂ ꢕꢆꢏ ꢌ ꢁ ꢌꢊꢑ ꢒ ꢂ ꢋꢁ ꢐꢏ ꢎꢏ ꢑꢒ

FEATURES

APPLICATIONS

Maximum Battery Life and Minimum Heat

– Efficiency With an 8-Ω Speaker:

– 84% at 400 mW

Ideal for Wireless or Cellular Handsets and

PDAs

– 79% at 100 mW

– 2.8-mA Quiescent Current

– 0.5-µA Shutdown Current

DESCRIPTION

The TPA2005D1 is a 1.1-W high efficiency filter-free

class-D audio power amplifier in a MicroStar Junior

BGA package that requires only three external

components.

Only Three External Components

– Optimized PWM Output Stage Eliminates

LC Output Filter

– Internally Generated 250-kHz Switching

Frequency Eliminates Capacitor and

Resistor

– Improved PSRR (–71 dB at 217 Hz) and

Wide Supply Voltage (2.5 V to 5.5 V)

Eliminates Need for a Voltage Regulator

– Fully Differential Design Reduces RF

Rectification and Eliminates Bypass

Capacitor

Features like 84% efficiency, –71-dB PSRR at 217 Hz,

improved RF-rectification immunity, and 15 mm total

PCB area make the TPA2005D1 ideal for cellular

handsets. A fast start-up time of 9 ms with minimal pop

makes the TP2005D1 ideal for PDA applications.

In cellular handsets, the earpiece, speaker phone, and

melody ringer can each be driven by the TPA2005D1.

The device allows independent gain control by

summing the signals from each function while

– Improved CMRR Eliminates Two Input

Coupling Capacitors

minimizing noise to only 48 µV

RMS

APPLICATION CIRCUIT

To Battery

Internal

Oscillator

Actual Solution Size

(MicroStar Junior BGA)

–

IN–

IN+

O+

PWM

H–

Bridge

Differential

Input

O–

2.5 mm

GND

Bias

Circuitry

SHUTDOWN

6 mm

TPA2005D1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments

semiconductor products and disclaimers thereto appears at the end of this data sheet.

MicroStar Junior is a trademark of Texas Instruments.

ꢀꢖ ꢗꢘ ꢙꢚ ꢛ ꢜꢝ ꢞ ꢟꢠ ꢛ ꢚꢟ ꢠꢡ ꢗ ꢟꢘ ꢗ ꢟꢢꢚꢣ ꢝ ꢡꢠꢗ ꢚꢟ ꢚꢟ ꢤꢣ ꢚꢙ ꢜꢛꢠꢘ ꢗꢟ ꢝꢚ ꢣ ꢞ ꢠꢖꢡ ꢟ ꢚꢟꢞ ꢤꢖꢡ ꢘꢞ ꢚꢢ

ꢙꢞ ꢥ ꢞ ꢦ ꢚꢤ ꢝꢞ ꢟ ꢠꢈ ꢀꢖ ꢞ ꢘ ꢠꢡ ꢠ ꢜꢘ ꢚꢢ ꢞꢡ ꢛꢖ ꢙꢞ ꢥꢗꢛ ꢞ ꢗꢘ ꢗꢟꢙ ꢗꢛꢡ ꢠꢞ ꢙ ꢚꢟ ꢠꢖꢞ ꢤꢡ ꢧꢞꢨ ꢘꢩ ꢘꢤ ꢞꢛ ꢗꢢꢪ ꢗꢟꢧ ꢗꢠꢘ

ꢞ ꢦ ꢞꢛ ꢠ ꢣ ꢗꢛ ꢡ ꢦ ꢛ ꢖꢡ ꢣ ꢡ ꢛ ꢠ ꢞ ꢣꢗ ꢘ ꢠꢗ ꢛ ꢘ ꢈ

12 3 4 5 6 7...22

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TPA2005D1 替代型号

型号	品牌	替代类型	描述	数据表
TPA2006D1	TI	功能相似	1.45-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER WITH 1.8-V COMPATIBLE INPUT THRESHOL

与TPA2005D1相关器件

型号	品牌	获取价格	描述	数据表
TPA2005D1DGN	TI	获取价格	1.4-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
TPA2005D1DGNG4	TI	获取价格	1.4-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
TPA2005D1DGNR	TI	获取价格	1.4-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
TPA2005D1DGNRG4	TI	获取价格	1.4-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
TPA2005D1DGNRQ1	TI	获取价格	汽车类 1.4W 单声道、模拟输入 D 类音频放大器 \| DGN \| 8 \| -40 to
TPA2005D1DRBQ1	TI	获取价格	1.4-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
TPA2005D1DRBR	TI	获取价格	1.1 W MONO FILTER FREE CLASS D AUDIO POWER AMPLIFIER
TPA2005D1DRBRG4	TI	获取价格	1.4-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
TPA2005D1DRBRQ1	TI	获取价格	IC 1.45 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8, 3 X 3 MM, GREEN, PLASTIC, SON-8, Audio/Video
TPA2005D1GQYR	TI	获取价格	1.1 W MONO FILTER FREE CLASS D AUDIO POWER AMPLIFIER

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