R3130N16AA-TR 데이터 시트보기 (PDF) - RICOH Co.,Ltd.

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R3130N16AA-TR

Low Voltage Detector with built-in Delay Circuit

RICOH Co.,Ltd. 

R3130N×××A/C, R3131N×××A/C

TIMING CHART

Detector

Supply

Voltage

(VDD)

Threshold

VDET

Minimum Operating

Voltage VSS

Supply

Voltage

(VDD)

Detector

Threshold

VDET

Minimum Operating

Voltage

VSS

Output Voltage

VSS

Tdelay

R3130N Operation Diagram

Output Voltage

VSS

Tdelay

R3131N Operation Diagram

• Output Delay Operation

Output Delay Time, or Tdelay is specified as follows:

1. In the case of Nch Open Drain Output:

The time interval from rising edge of VDD pulse (1.0V→(VDET)+0.1V) to the time at which the output reaches

2.5V under the condition that the output pin (OUT) is pulled up to 5V through a 470kΩ resistor.

2. In the case of CMOS Output

The time interval from rising edge of VDD pulse (1.0V→(VDET)+0.1V) to the time at which the output reaches

VDD/2.

VDET+1.0V

Input Voltage

(VDD)

VDET+1.0V

Input Voltage

(VDD)

1.0V

GND

1.0V

GND

5.0V

Output Voltage 2.5V

GND

Trst Tdelay

Nch Open Drain Output

VDET+0.1V

Output Voltage

(VDET+0.1V)/2

GND

Trst

CMOS Output

Tdelay

3

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