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TB2905HQ PDF预览

TB2905HQ

更新时间： 2024-10-30 03:28:59
品牌 Logo 应用领域
东芝 - TOSHIBA 消费电路商用集成电路音频放大器视频放大器功率放大器信息通信管理局域网
页数 文件大小 规格书
17页 280K
描述
Class KB High-Efficiency, Low-Frequency Power Amplifier IC Maximum Power: 47 W x 4 Channels

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中文翻译

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TB2905HQ 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：ZIP包装说明：1 MM PITCH, PLASTIC, HZIP-25
针数：25Reach Compliance Code：unknown
风险等级：5.58Is Samacsys：N
标称带宽：20 kHz商用集成电路类型：AUDIO AMPLIFIER
增益：26 dB谐波失真：10%
JESD-30 代码：R-PZFM-T25信道数量：4
功能数量：1端子数量：25
最高工作温度：85 °C最低工作温度：-40 °C
标称输出功率：55 W封装主体材料：PLASTIC/EPOXY
封装形状：RECTANGULAR封装形式：FLANGE MOUNT
峰值回流温度（摄氏度）：240认证状态：Not Qualified
最大供电电压 (Vsup)：18 V最小供电电压 (Vsup)：9 V
表面贴装：NO技术：BICMOS
温度等级：INDUSTRIAL端子形式：THROUGH-HOLE
端子位置：ZIG-ZAG处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

TB2905HQ 数据手册

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TB2905HQ  
TOSHIBA Bi-CMOS Digital Integrated Circuit Silicon Monolithic  
TB2905HQ  
Class KB High-Efficiency, Low-Frequency Power Amplifier IC  
Maximum Power: 47 W × 4 Channels  
The TB2905HQ is a high-efficiency class KB power amplifier  
IC developed for car audio applications that incorporates four  
BTL amplifier channels.  
It employs a pure complementary DMOS output stage  
consisting of P-ch upper and N-ch lower sections, offering a  
maximum output power (P  
) of 47 W.  
OUT  
Class KB (keyed BTL) amplifiers exhibit less than half the  
heat generation of comparable class AB solutions under normal  
operating conditions. Therefore, it is possible to design a smaller  
heatsink and maintain lower internal temperature in the car  
audio sets.  
Weight: 7.7 g (typ.)  
Additionally, the TB2905HQ has many built-in functions for car audio, such as standby switching, muting,  
protective circuits, and self diagnosis.  
Features  
•
High output power  
: P  
: P  
: P  
: P  
: P  
: P  
MAX (1) = 47 W (typ.)  
= 14.4 V, f = 1 kHz, JEITA max, R = 4 Ω)  
MAX (2) = 43 W (typ.)  
= 13.7 V, f = 1 kHz, JEITA max, R = 4 Ω)  
Pout MAX (3) = 80 W (typ.)  
= 14.4V, f = 1 kHz, JEITA max, R = 2 Ω)  
(1) = 29 W (typ.)  
= 14.4 V, f = 1 kHz, THD = 10%, R = 4 Ω)  
OUT  
(V  
CC  
L
OUT  
(V  
CC  
L
OUT  
(V  
CC  
L
OUT  
(V  
CC  
L
(2) = 25 W (typ.)  
= 13.2 V, f = 1 kHz, THD = 10%, R = 4 Ω)  
(3) = 55 W (typ.)  
OUT  
(V  
CC  
L
OUT  
(V  
CC  
= 14.4 V, f = 1 kHz, THD = 10%,R = 2 Ω)  
L
•
•
Low distortion ratio  
: THD = 0.03% (typ.)  
(V  
CC  
= 13.2 V, f = 1 kHz, G = 26dB, P  
= 2 W, R = 4 Ω)  
OUT L  
V
Low noise  
: V = 120 µVrms (typ.)  
NO  
(V  
CC  
= 13.2 V, G = 26dB, Rg = 0 Ω, BW = 20 Hz~20 kHz, R = 4 Ω)  
V L  
•
•
•
•
Built-in standby (pin 4) and muting (pin22) functions  
Built-in offset/clipping detection (pin 25)  
Protective circuits: Thermal shutdown, overvoltage, out to GND, out to V , out to out short  
CC  
Operating supply voltage: V  
(opr) = 9 to 18 V (R = 4 Ω)  
L
CC  
Note 1: Some pins of this product are sensitive to electrostatic discharge. When handling this product, ensure that  
the environment is protected against electrostatic discharge.  
Note 2: Install the product correctly. Otherwise, the product or connected equipment may get damaged or degrade.  
Note 3: These protective features are intended to temporarily prevent an output short circuit or other abnormal  
conditions from occurring. Toshiba does not guarantee that they prevent the IC from being damaged.  
If the product is operating outside any of the guaranteed operating ranges, these protective features may  
not operate and an output short circuit may result in the IC being damaged.  
1
2005-08-17  
1234567...17

中文翻译

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