參數(shù)資料
型號： MC34161
廠商： Motorola, Inc.
英文描述： Single Output LDO, 250mA, Fixed(5.0V), Low Noise, Fast Transient Response 5-SOT-23 -40 to 85
中文描述： 通用電壓監(jiān)視器
文件頁數(shù)： 10/16頁
文件大小： 292K
代理商： MC34161
MC34161 MC33161
10
MOTOROLA ANALOG IC DEVICE DATA
The above figure shows the MC34161 configured as a positive and negative overvoltage detector. As the input voltage increases from ground, the LED will turn ‘ON’
when either –VS1 exceeds V2, or VS2 exceeds V4. With the dashed line output connection, the circuit becomes a positive and negative undervoltage detector. As the
input voltage decreases from the peak towards ground, the LED will turn ‘ON’ when either VS2 falls below V3, or –VS1 falls below V1.
For known resistor values, the voltage trip points are:
For a specific trip voltage, the required resistor ratio is:
Figure 21. Positive and Negative Overvoltage Detector
V
1
R
3
R
4
(V
th1
V
ref
)
V
th1
V
2
R
3
R
4
(V
th1
V
H1
V
ref
)
V
th1
V
H1
V
3
(V
th2
V
H2
)
R
2
R
1
1
V
4
V
th2
R
2
R
1
1
R
3
R
4
(V
1
(V
th1
V
th1
)
V
ref
)
R
3
R
4
(V
2
(V
th1
V
th1
V
H1
V
H1
)
V
ref
)
R
2
R
1
V
4
V
th2
1
R
2
R
1
V
3
V
th2
V
H2
1
+
1.27V
+
1.27V
+
2.8V
+
0.6V
+
–
2.54V
Reference
–
+
–
+
+
–
4
1
7
2
3
5
6
R4
R3
–VS1
VS2
R1
R2
8
VCC
Output
Voltage
Pins 5, 6
Gnd
LED ‘ON’
VHys2
VHys1
VCC
Gnd
Input –VS1
V4
V3
V1
V2
Input VS2
The above figure shows the MC34161 configured as a positive and negative undervoltage detector. As the input voltage decreases toward ground, the LED will turn
‘ON’ when either VS1 falls below V1, or –VS2 falls below V3. With the dashed line output connection, the circuit becomes a positive and negative overvoltage detector.
As the input voltage increases from the ground, the LED will turn ‘ON’ when either VS1 exceeds V2, or –VS1 exceeds V1.
For known resistor values, the voltage trip points are:
For a specific trip voltage, the required resistor ratio is:
Figure 22. Positive and Negative Undervoltage Detector
V
1
(V
th1
V
H1
)
R
4
R
3
1
V
2
V
th1
R
4
R
3
1
V
3
R
1
R
2
(V
th
V
ref
)
V
th2
V
4
R
1
R
2
(V
th
V
H2
V
ref
)
V
th2
V
H2
R
4
R
3
V
2
V
th1
1
R
4
R
3
V
1
V
th1
V
H1
1
R
1
R
2
V
4
V
th2
V
H2
V
H2
V
th2
V
ref
R
1
R
2
V
3
V
th2
V
th2
V
ref
+
1.27V
+
1.27V
+
2.8V
+
0.6V
+
–
–
+
–
+
+
–
4
1
7
2
3
5
6
2.54V
Reference
8
VCC
R3
VS1
R4
R1
R2
–VS2
V2
V1
V3
V4
Gnd
VCC
Gnd
Output
Voltage
Pins 5, 6
Input –VS2
Input VS1
LED ‘ON’
VHys2
VHys1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC34161_06 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Universal Voltage Monitors
MC34161D 功能描述:監(jiān)控電路 Universal Voltage RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MC34161DG 功能描述:監(jiān)控電路 Universal Voltage Monitor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MC34161DG 制造商:ON Semiconductor 功能描述:Voltage Detector / Microprocessor Superv
MC34161DMR2 功能描述:監(jiān)控電路 Universal Voltage RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
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