R3111D501B-TR-F 데이터 시트보기 (PDF) - RICOH Co.,Ltd.
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R3111D501B-TR-F Datasheet PDF : 44 Pages
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• Voltage level Indicator Circuit (lighted when the power runs out)
(Nch Open Drain Output)
VDD
VDD
R3111xxxxA
Series
OUT
GND
R3111x
• Detector Threshold Adjustable Circuit
(Nch Open Drain Output)
OUT
R3111xxxxA
Series
VDD
+
C
VDD
Ra
Rb
GND
Adjusted Detector Threshold
=(−VDET)×(Ra+Rb)/Rb
Hysteresis Voltage
=(VHYS)×(Ra+Rb)/Rb
∗) If the value of Ra is set excessively large, voltage
drop may occur caused by the supply current of IC
itself, and detector threshold may vary.
• Window Comparator Circuit
(Nch Open Drain Output)
VDD
R3111xxxxA OUT
Series
VDET1
GND
VDD
R3111xxxxA
Series
GND
OUT
VDD
OUT
• Over-charge Preventing Circuit
VDD
VDET1 VDET2
VSS
OUT
VSS
Light
R1 R2
D1
R4
VDD
R3111xxxxC
R3 OUT Series
GND
25
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