Datasheet > BD5471MUV_10

BD5471MUV_10

更新时间： 2024-11-26 06:41:55

品牌	Logo	应用领域
罗姆 - ROHM		放大器
页数	文件大小	规格书
22页	516K
描述
Analog Input Stereo Class-D Speaker Amplifier

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BD5471MUV_10 数据手册

Small-sized Class-D Speaker Amplifiers

Analog Input

Stereo Class-D Speaker Amplifier

BD5471MUV

No.10101EAT03

●Description

BD5471MUV is a low voltage drive class-D stereo speaker amplifier that was developed for note-book PC, cellular phone,

mobile audio products and the others. LC filters of speaker outputs are unnecessary, and only 7 external components are

needed for speaker system. Also, 3.3V regulator in BD5471MUV can use power supply for audio-codec. BD5471MUV, that

is high-efficiency, low consumption, is suitable for application by using battery. Shutdown current is 0µA typically. Also,

start-up time is fast from shutdown to active mode. BD5471MUV can use for some applications that change mode between

“shutdown state” and “active state”.

●Features

1) High power 2.3W typ. (VDD=5V, RL=4Ω, THD+N=10%, stereo input)

High power 1.5W typ. (VDD=5V, RL=8Ω, THD+N=10%, stereo input)

2) Gain selectable by the external control (6, 12, 18, 24dB)

3) Pop noise suppression circuitry

4) Standby function (Mute function) [I_SD=0uA]

5) Protection circuitry (Short protection [Audio, REG], Thermal shutdown, Under voltage lockout)

6) Built-in 3.3V regulator

7) Built-in BEEP detect circuitry

8) Very small package VQFN024V4040

●Applications

Notebook computers,Mobile electronic applications,Mobile phones,PDA etc.

●Absolute Maximum Ratings(Ta=+25℃)

Parameter

Symbol

VDD

Ratings

7.0

Unit

Power Supply Voltage

0.7 *1

2.2 *2

℃

Power Dissipation

Storage Temperature Range

Input Voltage Range *3

Tstg

Vin

-55 ~ +150

-0.3 ~ VDD+0.3

Control Terminal

Input Voltage Range *4

Vctl

74.2mm×74.2mm×1.6mm, FR4 1-layer glass epoxy board(Copper on top layer 0%)

Derating in done at 5.6mW/℃ for operating above Ta=25℃. There are thermal via on the board

4.2mm×74.2mm×1.6mm, FR4 4-layer glass epoxy board (Copper on bottom 2 and 3 layer 100%)

input Terminal (INL+, INL-, INR+, INR-)

Control Terminal (MUTE, G0, G1, EAPD, BEEP, REG_SD)

●Operating Conditions

Parameter

Symbol

VDD

Ratings

Unit

Power Supply Voltage

Temperature Range

+4.5 ~ +5.5

Topr

-40 ~ +85

℃

* These products aren’t designed for protection against radioactive rays.

www.rohm.com

2010.06 - Rev.A

1/21

12 3 4 5 6 7...22

中文翻译

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