TB2903HQ 데이터 시트보기 (PDF) - Toshiba
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TB2903HQ Datasheet PDF : 17 Pages
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TB2903HQ
4. Off-set detection function
In case of Appearing output offset voltage by Generating a Large Leakage Current on the input
Capacitor etc.
Vref
Elec. vol
Leak or short
RS1
Vref/2
Vbias
V
DC Voltage (+) Amp (at leak) (RS1)
VCC/2 (normal DC voltage)
DC Voltage (−) Amp (at short) (RS2)
+
Offset voltage (at leak or short)
5V
−
25
A
L.P.F.
To CPU
B
Figure 6 Application and Detection Mechanism
(+) Amp output
GND
Voltage of
point (A)
GND
Voltage of
point (B)
GND
Threshold level (RS1)
VCC/2
Threshold level (RS2)
t
t
RS2
t
Figure 7 Wave Form
5
2006-04-28
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