R311H151C データシートの表示（PDF） - RICOH Co.,Ltd.

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R311H151C

LOW VOLTAGE DETECTOR

RICOH Co.,Ltd. 

s TIMING CHART

Release Voltage +VDET

Supply Voltage Detector Threshold -VDET

(VDD)

Minimum Operating Voltage

VSS

Detector Threshold

Hysteresis

Output Voltage

(OUT)

VSS

tPLH

s DEFINITION OF OUTPUT DELAY TIME

Output Delay Time tPLH is defined as follows:

1. In the case of Nch Open Drain Output:

Under the condition of the output pin (OUT) is pulled up through a resistor of 470kΩ to 5V, the time interval between the

rising edge of VDD pulse from 0.7V to (+VDET)+ 2.0V and becoming of the output voltage to 2.5V.

2. In the case of CMOS Output:

The time interval between the rising edge of VDD pulse from 0.7V to (+VDET)+ 2.0V and becoming of the output voltage to

(VDD/2) V.

+VDET + 2.0V

Input Voltage

(VDD)

+VDET + 2.0V

Input Voltage

(VDD)

0.7V

GND

0.7V

GND

Output Voltage

5.0V

2.5V

+VDET+2.0V

Output Voltage

+VDET+2.0V

2

GND

tPHL

tPLH

Nch Open Drain Output

GND

tPHL

tPLH

CMOS Output

Rev.1.10

-2-

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