參數資料
| 型號： | BH7881EFV-E2 |
| 廠商： | Rohm Semiconductor |
| 文件頁數： | 1/9頁 |
| 文件大小： | 0K |
| 描述： | IC AMP HDPH/SPEAKER LV 24HTSSOP |
| 標準包裝： | 2,000 |
| 類型： | AB 類 |
| 輸出類型： | 2 通道（立體聲） |
| 在某負載時最大輸出功率 x 通道數量： | 2W x 2 @ 4 歐姆 |
| 電源電壓： | 3.3 V ~ 5.5 V |
| 特點： | 低音增強模式，靜音，短路和熱保護，待機 |
| 安裝類型： | 表面貼裝 |
| 供應商設備封裝： | 24-HTSSOP-B |
| 封裝/外殼： | 24-VSSOP（0.220"，5.60mm 寬）裸露焊盤 |
| 包裝： | 帶卷 (TR) |
1/9
www.rohm.com
2010.06 - Rev.A
2010 ROHM Co., Ltd. All rights reserved.
Class-AB Speaker Amplifiers
2W + 2W Stereo
Speaker / Headphone Amplifier
BH7881EFV
●Description
The BH7881EFV is a low voltage, low noise, high output speaker/headphone amplifier IC, in which a Bi-CMOS process is
used. An on-chip speaker amplifier circuit that is capable of 2W+2W output can be used as a headphone amplifier by
switching the operating mode. This makes it possible to configure an audio system using few external devices.
With a built-in, low saturation regulator with programmable output voltage and output current, clear tone quality is obtained
even when directly connected to a digital power supply. A peripheral analog circuit can also be regulator driven. Furthermore,
the BH7881EFV provides speaker output and VREG output short-circuit detection functions, a thermal shutdown function with
hysteresis, and a speaker protection function.
●Features
1) Built-in low saturation type regulator (Digital power supply driver, voltage and current variable, short circuit detection)
2) Bass boost mode, gain switching functions
3) Speaker MUTE function (Headphone mode)
4) Built-in line amplifier output (gain adjustment, LPF setting) active/suspend function (TTL input control pin)
5) Hysteretic thermal shutdown function (Set for approximately 150℃ /90℃)
6) IC protection function (SP pin VCC/GND short circuit detection)
7) Speaker protection function (Output voltage amplitude control)
●Applications
Notebook computers, LCD TVs, etc.
●Absolute maximum ratings (Ta=25℃)
Parameter
Ratings
Unit
Supply voltage
+6.0
V
Power dissipation
1100 *1
mW
Storage temperature
-55～+125
℃
Operating temperature
-10～+70
℃
*1 Reduced by 11 mW/℃ at 25℃ or higher, when mounting on a 70mmX70mmX1.6mm PCB board).
●Operating Conditions (Ta=25℃)
Parameter
Ratings
Unit
Supply voltage
+3.3～+5.5
V
* This IC is not designed to be radiation-resistant.
No.10077EAT05
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相關代理商/技術參數 |
參數描述 |
|---|---|
| BH7884EFV | 制造商:ROHM 制造商全稱:Rohm 功能描述:1W+1W Stereo Speaker / Headphone Amplifier |
| BH7884EFV_05 | 制造商:ROHM 制造商全稱:Rohm 功能描述:1W+1W Stereo Speaker / Headphone Amplifier |
| BH7884EFV_10 | 制造商:ROHM 制造商全稱:Rohm 功能描述:1W+1W Stereo Speaker / Headphone Amplifier |
| BH7884EFV-E2 | 功能描述:音頻放大器 1W SPEAKER/HEADPHONE AMPLIFIER RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| BH-800 | 制造商:Energizer Battery Company 功能描述:Spring Clip Holder |
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