參數(shù)資料
型號： MC34161D
廠商： ON SEMICONDUCTOR
元件分類： 電源管理
英文描述： Universal Voltage Monitors
中文描述： 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝： PLASTIC, SOIC-8
文件頁數(shù)： 9/16頁
文件大小： 292K
代理商： MC34161D
MC34161 MC33161
9
MOTOROLA ANALOG IC DEVICE DATA
The above figure shows the MC34161 configured as a positive voltage window detector. This is accomplished by connecting channel 1 as an undervoltage detector,
and channel 2 as an overvoltage detector. When the input voltage VS falls out of the window established by V1 and V4, the LED will turn ‘ON’. As the input voltage
falls within the window, VS increasing from ground and exceeding V2, or VS decreasing from the peak towards ground and falling below V3, the LED will turn ‘OFF’.
With the dashed line output connection, the LED will turn ‘ON’ when the input voltage VS is within the window.
For known resistor values, the voltage trip points are:
For a specific trip voltage, the required resistor ratio is:
Figure 19. Positive Voltage Window Detector
V
1
(V
th1
V
H1
)
R
3
R
1
R
2
1
V
3
(V
th2
V
H2
)
R
2
R
3
R
1
1
V
2
V
th1
R
3
R
1
R
2
1
V
4
V
th2
R
2
R
3
R
1
1
R
2
R
1
V
3
(V
th2
V
1
(V
th1
V
H2
)
V
H1
)
1
R
3
R
1
V
3
(V
1
V
1
(V
th2
V
th1
V
H1
)
V
H2
)
R
2
R
1
V
4
x V
th2
V
2
x V
th1
1
R
3
R
1
V
4
(V
2
V
2
x V
th2
V
th1
)
+
1.27V
+
1.27V
+
2.8V
+
0.6V
+
–
2.54V
Reference
–
+
–
+
+
–
4
1
7
2
3
5
6
VS
R3
R1
R2
8
VCC
Output
Voltage
Pins 5, 6
Gnd
CH2
CH1
LED ‘ON’
VHys2
VHys1
LED ‘ON’
‘OFF’
LED ‘OFF’
‘ON’
V4
V3
V2
V1
VCC
Gnd
Input VS
The above figure shows the MC34161 configured as a negative voltage window detector. When the input voltage –VS falls out of the window established by V1 and
V4, the LED will turn ‘ON’. As the input voltage falls within the window, –VS increasing from ground and exceeding V2, or –VS decreasing from the peak towards ground
and falling below V3, the LED will turn ‘OFF’. With the dashed line output connection, the LED will turn ‘ON’ when the input voltage –VS is within the window.
For known resistor values, the voltage trip points are:
For a specific trip voltage, the required resistor ratio is:
Figure 20. Negative Voltage Window Detector
V
1
R
1
(V
th2
R
2
V
ref
)
R
3
V
th2
V
2
R
1
(V
th2
V
H2
R
3
V
ref
)
R
2
V
th2
V
H2
V
3
(R
1
R
2
)(V
th1
R
3
V
ref
)
V
th1
V
4
(R
1
R
2
)(V
th1
V
H1
V
ref
)
R
3
V
th1
V
H1
R
1
R
2
R
3
V
1
V
th2
V
th2
V
ref
R
1
R
2
R
3
V
2
V
th2
V
th2
V
H2
V
H2
V
ref
R
3
R
1
R
2
V
th1
V
3
V
ref
V
th1
R
3
R
1
R
2
V
th1
V
4
V
H1
V
H1
V
ref
V
th1
+
1.27V
+
1.27V
+
2.8V
+
0.6V
+
–
–
+
–
+
+
–
4
1
7
2
3
5
6
2.54V
Reference
R3
R1
R2
–VS
8
VCC
Output
Voltage
Pins 5, 6
Gnd
CH2
CH1
V1
V2
V3
V4
VCC
Gnd
Input –VS
LED ‘ON’
LED ‘ON’
‘OFF’
LED ‘OFF’
‘ON’
VHys1
VHys2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
MC34161DMR2G 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
MC34161DR2 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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