R3130N RICOH [RICOH electronics devices division], R3130N Datasheet - Page 29

• Manufacturer Part Number: R3130N
• Description: Low Voltage Detector with Built-in Delay Circuit
• Manufacturer: RICOH [RICOH electronics devices division]

As shown wiring in Figure A and Figure B may cause unstable operation by cross conduction current at
detection of all types of R313xN Series. The detector threshold may shift because of voltage drop by
consumption current of this IC itself.
At the power-on state, if V
initialization may not be finished, and output may be unstable. If the transient time from the minimum input
voltage to the detector threshold level at the power-on state is 30µs or less, fully evaluation is necessary.
GND
V
V
DD
DD
R313xN
Series
Figure A
R
DD
starts up from minimum input voltage (1V) or less very rapidly, the internal
OUT
TECHNICAL NOTES
GND
V
V
DD
DD
R313xN
Series
R1
Figure B
OUT
R3130N/R3131N
R2
29