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FT2010 PDF预览

FT2010

更新时间: 2024-01-27 19:09:18
品牌 Logo 应用领域
FANGTEK /
页数 文件大小 规格书
18页 759K
描述
3W Class-D Audio Power Amplifier with Auto-Recovering Short-Circuit Protection

FT2010 数据手册

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ft2010  
3W Class-D Audio Power Amplifier  
with Auto-Recovering Short-Circuit Protection  
GENERAL DESCRIPTION  
FEATURES  
Filterless Class-D operation  
The ft2010 is a high efficiency, filterless, Class-D  
audio amplifier with auto-recovering short-circuit  
protection. It operates from 2.7V to 5.5V supply.  
When powered with 5V supply voltage, the ft2010  
is capable of delivering 3W into a 4Ω load or 1.8W  
into an 8Ω load, with 10% THD+N.  
High efficiency up to 90%  
Maximum output power at 5V supply  
3.0W (4Ω load, 10% THD+N)  
1.8W (8Ω load, 10% THD+N)  
Maximum output power at 3.6V supply  
As a Class-D audio amplifier, the ft2010 features  
90% efficiency and 75dB PSRR at 217Hz which  
make the device ideal for battery-powered  
high-quality audio applications.  
1.5W (4Ω load, 10% THD+N)  
0.9W (8Ω load, 10% THD+N)  
Low THD+N: 0.05%  
(VDD=3.6V, f=1kHz, RL=8Ω, PO=0.5W)  
One of the key benefits of the ft2010 over typical  
Class-D audio power amplifiers is it generates  
much less EMI emissions, thus greatly simplifying  
the system design for portable applications. Also  
included is the over-current and short-circuit  
protection with auto-recovery, which ensures the  
device be operated safely and reliably without the  
need for system interaction.  
Low quiescent current: 2mA @ VDD=3.6V  
Low shutdown current < 0.1µA  
High PSRR: 75dB @ 217Hz  
No bypass capacitor required for the  
common-mode bias  
Under-voltage lockout  
Auto-recovering over-current and  
short-circuit protection  
APPLICATIONS  
Thermal overload protection  
Mobile Phones  
Available in MSOP-8L package  
Portable Navigation Devices  
Multimedia Internet Devices  
MP3/4  
APPLICATION CIRCUIT  
To Battery  
To Battery  
Cs  
Cs  
1uF  
1uF  
VDD  
VDD  
Ci  
Ci  
Ri  
Ri  
INN  
Differential Input  
INP  
INN  
INN  
INN  
VON  
VOP  
VON  
VOP  
Single-ended Input  
ft2010  
ft2010  
INP  
INP  
Ri  
Ri  
Ci  
Ci  
SHDN  
SHDN  
ON  
ON  
GND  
GND  
OFF  
OFF  
Figure 1: Typical Audio Amplifier Application Circuit  
NOV, 2013  
www.fangtek.com.cn  
1

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