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TDA8931 PDF预览

TDA8931

更新时间: 2024-11-07 21:54:55
品牌 Logo 应用领域
恩智浦 - NXP 比较器
页数 文件大小 规格书
31页 161K
描述
Power comparator 1 X 20 W

TDA8931 数据手册

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TDA8931  
Power comparator 1 × 20 W  
Rev. 01 — 14 January 2004  
Preliminary data sheet  
1. General description  
The TDA8931 is a switching power stage for high efficiency class-D audio power amplifier  
systems.  
It contains a Single-Ended (SE) power stage, drive logic, protection control logic, a full  
differential input comparator and a HVP charger to charge the SE capacitor. With this  
amplifier a compact 1 × 20 W closed loop self-oscillating digital amplifier system can be  
built. The TDA8931 has a high efficiency so that a heat sink is not required up to  
20 W (RMS). The system operates on an asymmetrical and a symmetrical supply voltage.  
2. Features  
High efficiency  
Operating voltage asymmetrical from 12 V to 35 V  
Operating voltage symmetrical from ±6 V to ±17.5 V  
Thermally protected  
No heat sink required  
Charger for single-ended capacitor  
No pop sound  
3. Applications  
Flat panel television sets  
Flat panel monitors  
Multimedia systems  
Wireless speakers  
Micro systems  
4. Quick reference data  
Table 1:  
Quick reference data  
Symbol Parameter  
General  
Conditions  
Min  
Typ  
Max Unit  
VP  
operating supply  
voltage  
asymmetrical  
12  
±6  
-
22  
35  
V
symmetrical  
±11  
20  
±17.5 V  
Iq  
quiescent current  
standby current  
sleep current  
Operating mode; VP = 22 V  
Standby mode; VP = 22 V  
Sleep mode; VP = 22 V  
30  
mA  
Istb  
Isleep  
-
10  
15  
mA  
-
100  
200  
µA  

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