参数资料
| 型号： | BD5471MUV-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC AMP STEREO SPEAKER 24VQFN |
| 标准包装： | 2,500 |
| 类型： | D 类 |
| 输出类型： | 2 通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 2.3W x 1 @ 4 欧姆 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 特点： | 消除爆音，静音，短路和热保护，待机 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | VQFN024V4040 |
| 封装/外壳： | 24-VFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
1/21
www.rohm.com
2013.11 - Rev.B
2013 ROHM Co., Ltd. All rights reserved.
Small-sized Class-D Speaker Amplifiers
Analog Input
Stereo Class-D Speaker Amplifier
BD5471MUV
●
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 0A 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=4, THD+N=10%, stereo input)
High power 1.5W typ. (VDD=5V, RL=8, 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) [ISD=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
Ratings
Unit
Power Supply Voltage
VDD
7.0
V
Power Dissipation
Pd
0.7 *1
W
2.2 *2
W
Storage Temperature Range
Tstg
-55 ~ +150
℃
Input Voltage Range *3
Vin
-0.3 ~ VDD+0.3
V
Control Terminal
Input Voltage Range *4
Vctl
-0.3 ~ VDD+0.3
V
*1
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
*2
4.2mm×74.2mm×1.6mm, FR4 4-layer glass epoxy board (Copper on bottom 2 and 3 layer 100%)
*3
input Terminal (INL+, INL-, INR+, INR-)
*4
Control Terminal (MUTE, G0, G1, EAPD, BEEP, REG_SD)
●
Operating Conditions
Parameter
Symbol
Ratings
Unit
Power Supply Voltage
VDD
+4.5 ~ +5.5
V
Temperature Range
Topr
-40 ~ +85
℃
* These products aren’t designed for protection against radioactive rays.
No.13101EBT03
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