R3112Q15A-TR 데이터 시트보기 (PDF) - RICOH Co.,Ltd.

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R3112Q15A-TR

LOW VOLTAGE DETECTOR WITH OUTPUT DELAY

RICOH Co.,Ltd. 

s TECHNICAL NOTES

VDD

R

VDD

R1

VDD

R1

R3112x

R2

Series OUT

VDD

R3112X

Series OUT

VDD

R311 2x

Series

R2

OUT

GND

GND

GND

Figure A

Figure B

Figure C

When R3112XXX1A (Nch Open Drain Output Type) is used in Figure A or Figure B, if Impedance of

Voltage Supply pIn, VDD and VDD of this IC is large, detector threshold level would shift by voltage

dropdown caused by the consumption current of the IC itself. Released voltage may also shift and delay

time for start-up might be generated by this usage.

When R3112XXX1C (CMOS Output Type) is used in Figure A or Figure B, Output level could be

unstable by throughout current which is generated at detector threshold level or at released voltage

level, therefore, do not use R3112XXX1C with the connection in Figure A or Figure B.

The connection in Figure C may cause the oscillation in both R3112XXX1C (CMOS Output) and

R3112XXX1A (Nch Open Drain Output), therefore do not use R3112XXX1X Series with the connection

in Figure C.

Rev. 1.10

- 16 -

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