參數(shù)資料
型號: TB2904HQ
元件分類: 音頻/視頻放大
英文描述: 26 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25
封裝: 1 MM PITCH, PLASTIC, HZIP-25
文件頁數(shù): 14/18頁
文件大?。?/td> 360K
代理商: TB2904HQ
TB2904HQ
2006-04-28
5
4.
Off-set detection function
In case of Appearing output offset voltage by Generating a Large Leakage Current on the input
Capacitor etc.
Figure 6
Application and Detection Mechanism
Vref
Elec. vol
25
5 V
L.P.F.
To CPU
+
V
Offset voltage (at leak or short)
DC Voltage (
) Amp (at short) (RS2)
DC Voltage (
+) Amp (at leak) (RS1)
VCC/2 (normal DC voltage)
Leak or short
Vbias
Vref/2
A
B
R
S2
RS1
(
+) Amp output
Threshold level (RS1)
VCC/2
GND
t
GND
Voltage of
point (A)
Voltage of
point (B)
Threshold level (RS2)
t
RS2
Figure 7
Wave Form
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