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参数资料
| 型号： | R3111Q251A |
| 厂商： | Ricoh Co., Ltd. |
| 英文描述： | LOW VOLTAGE DETECTOR |
| 中文描述： | 低电压检测 |
| 文件页数： | 12/20页 |
| 文件大小： | 218K |
| 代理商： | R3111Q251A |
Rev.1.10
- 2 -
s TIMING CHART
tPLH
Supply Voltage
Output Voltage
(OUT)
Minimum Operating Voltage
VSS
Detector Threshold
Hysteresis
(VDD)
Release Voltage +VDET
Detector Threshold -VDET
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 470k
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
5.0V
2.5V
0.7V
Input Voltage
(VDD)
Output Voltage
GND
tPHL
tPLH
+VDET + 2.0V
+VDET+2.0V
0.7V
Input Voltage
(VDD)
Output Voltage
GND
2
GND
tPHL
tPLH
Nch Open Drain Output
CMOS Output
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