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LM4652TA

更新时间： 2024-11-22 22:51:51
品牌 Logo 应用领域
美国国家半导体 - NSC 放大器功率放大器
页数 文件大小 规格书
20页 589K
描述
LM4651 & LM4652 Overture⑩ Audio Power Amplifier 170W Class D Audio Power Amplifier Solution

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中文翻译

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LM4652TA 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
包装说明：PLASTIC, TO-220, 15 PINReach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.33.00.01
风险等级：5.84标称带宽：30 kHz
商用集成电路类型：AUDIO AMPLIFIER谐波失真：10%
JESD-30 代码：R-PZFM-T15JESD-609代码：e0
湿度敏感等级：1信道数量：1
功能数量：1端子数量：15
最高工作温度：85 °C最低工作温度：-40 °C
标称输出功率：170 W封装主体材料：PLASTIC/EPOXY
封装代码：TO-220封装形状：RECTANGULAR
封装形式：FLANGE MOUNT峰值回流温度（摄氏度）：260
认证状态：Not Qualified最大供电电压 (Vsup)：22 V
最小供电电压 (Vsup)：11 V表面贴装：NO
温度等级：INDUSTRIAL端子面层：Tin/Lead (Sn85Pb15)
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：40

LM4652TA 数据手册

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August 2000  
™
LM4651 & LM4652 Overture Audio Power Amplifier  
170W Class D Audio Power Amplifier Solution  
General Description  
The IC combination of the LM4651 driver and the LM4652  
power MOSFET provides a high efficiency, Class D sub-  
woofer amplifier solution.  
Key Specifications  
<
n Output power into 4Ω with 10% THD.  
170W (Typ)  
0.3% THD (Typ)  
85% (Typ)  
<
n THD at 10W, 4Ω, 10 − 500Hz.  
n Maximum efficiency at 125W  
n Standby attenuation.  
>
The LM4651 is a fully integrated conventional pulse width  
modulator driver IC. The IC contains short circuit, under  
voltage, over modulation, and thermal shut down protection  
circuitry. It contains a standby function, which shuts down  
the pulse width modulation and minimizes supply current.  
The LM4652 is a fully integrated H-bridge power MOSFET  
IC in a TO-220 power package. Together, these two IC’s  
form a simple, compact high power audio amplifier solution  
complete with protection normally seen only in Class AB  
amplifiers. Few external components and minimal traces  
between the IC’s keep the PCB area small and aids in EMI  
control.  
100dB (Min)  
Features  
n Conventional pulse width modulation.  
n Externally controllable switching frequency.  
n 50kHZ to 200kHz switching frequency range.  
n Integrated error amp and feedback amp.  
n Turn−on soft start and under voltage lockout.  
n Over modulation protection (soft clipping).  
n Short circuit current limiting and thermal shutdown  
protection.  
The near rail-to-rail switching amplifier substantially in-  
creases the efficiency compared to Class AB amplifiers. This  
high efficiency solution significantly reduces the heat sink  
size compared to a Class AB IC of the same power level.  
This two-chip solution is optimum for powered subwoofers  
and self powered speakers.  
n 15 Lead TO−220 isolated package.  
n Self checking protection diagnostic.  
Applications  
n Powered subwoofers for home theater and PC’s  
n Car booster amplifier  
n Self-powered speakers  
Connection Diagrams  
LM4651 Plastic Package  
LM4652 Plastic Package (Note 8)  
DS101277-73  
Isolated TO-220 Package  
Order Number LM4652TF  
See NS Package Number TF15B  
or  
DS101277-72  
Non-Isolated TO-220 Package  
Order Number LM4652TA  
See NS Package Number TA15A  
Top View  
Order Number LM4651N  
See NS Package Number N28B  
Overture® is a registered trademark of National Semiconductor Corporation.  
© 2001 National Semiconductor Corporation  
DS101277  
www.national.com  
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