參數(shù)資料
型號(hào)： TA8263BH
廠商： Toshiba Corporation
英文描述： Max Power 43 W BTL 】 4 ch Audio Power IC
中文描述： 最大功率43糯橋接】4通道音頻功率IC
文件頁(yè)數(shù)： 6/13頁(yè)
文件大小： 252K
代理商： TA8263BH
TA8263BH
2002-02-13
6
5.3
In Case of Appearing Output Offset Voltage by Generating a Large Leakage Current on
the Input Capacitor etc.
NPN transistor (Q2) is turned on while the inverted output voltage level become less than the
threshold level of output offset voltage detector.
t
( ) Amp output
Figure 10 Wave Form
Threshold level
V
CC/2
GND
t
Voltage of point (A)
GND
t
Voltage of point (B)
GND
Figure 9 Application and Detection Mechanism
V
ref
Leak or short
Elec. Vol.
V
ref/2
25
5 V
L.P.F.
A
B
To CPU
V
bias
V
DC voltage of ( ) Amp (at leak)
DC voltage of ( ) Amp (at leak)
V
CC/2
(normal DC voltage)
Offset voltage (at leak)
*: It is possible to detect the abnormal output offset which is appeared by the large leakage of the input capacitor at
V
ref/2
V
bias
(about 1.4 V)
t
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