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MC34161 데이터시트 PDF




Motorola Semiconductors에서 제조한 전자 부품 MC34161은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 MC34161 기능
기능 UNIVERSAL VOLTAGE MONITORS
제조업체 Motorola Semiconductors
로고 Motorola Semiconductors 로고


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MC34161 데이터시트, 핀배열, 회로
Universal Voltage Monitors
The MC34161/MC33161 are universal voltage monitors intended for use
in a wide variety of voltage sensing applications. These devices offer the
circuit designer an economical solution for positive and negative voltage
detection. The circuit consists of two comparator channels each with
hysteresis, a unique Mode Select Input for channel programming, a pinned
out 2.54 V reference, and two open collector outputs capable of sinking in
excess of 10 mA. Each comparator channel can be configured as either
inverting or noninverting by the Mode Select Input. This allows over, under,
and window detection of positive and negative voltages. The minimum
supply voltage needed for these devices to be fully functional is 2.0 V for
positive voltage sensing and 4.0 V for negative voltage sensing.
Applications include direct monitoring of positive and negative voltages
used in appliance, automotive, consumer, and industrial equipment.
Unique Mode Select Input Allows Channel Programming
Over, Under, and Window Voltage Detection
Positive and Negative Voltage Detection
Fully Functional at 2.0 V for Positve Voltage Sensing and 4.0 V for
Negative Voltage Sensing
Pinned Out 2.54 V Reference with Current Limit Protection
Low Standby Current
Open Collector Outputs for Enhanced Device Flexibility
Order this document by MC34161/D
MC34161
MC33161
UNIVERSAL VOLTAGE
MONITORS
SEMICONDUCTOR
TECHNICAL DATA
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
Simplified Block Diagram
(Positive Voltage Window Detector Application)
VCC
8
1 2.54V
Reference
VS 7
2
+
++
2.8V
+–
1.27V
3
+
++
0.6V
+–
1.27V
6
5
4
MOTOROLA ANALOG IC DEVICE DATA
PIN CONNECTIONS
Vref 1
Input 1 2
Input 2 3
Gnd 4
8 VCC
7 Mode Select
6 Output 1
5 Output 2
(TOP VIEW)
ORDERING INFORMATION
Device
MC34161D
MC34161P
Operating
Temperature Range
TA = 0° to +70°C
Package
SO–8
Plastic DIP
MC33161D
MC33161P
TA = –40° to +85°C
SO–8
Plastic DIP
© Motorola, Inc. 1998
Rev 1.1
1




MC34161 pdf, 반도체, 판매, 대치품
MC34161 MC33161
Figure 7. Reference Voltage
versus Supply Voltage
Figure 8. Reference Voltage
versus Ambient Temperature
2.8 2.610
2.4 Vref Max = 2.60 V
2.578
2.0
1.6 2.546
Vref Typ = 2.54 V
1.2 2.514
0.8
VCC = 5.0 V
VMode = Gnd
0.4
VMode = Gnd
TA = 25°C
2.482
Vref Min = 2.48 V
0 2.450
0 10 20 30 40
–55 –25 0
25 50 75
100 125
VCC, SUPPLY VOLTAGE (V)
TA, AMBIENT TEMPERATURE (°C)
Figure 9. Reference Voltage Change
versus Source Current
0
–2.0
–4.0
VCC = 5.0 V
VMode = Gnd
–6.0
–8.0
–10
0
1.0 2.0 3.0 4.0 5.0 6.0 7.0
Iref, REFERENCE SOURCE CURRENT (mA)
8.0
Figure 10. Output Saturation Voltage
versus Output Sink Current
0.5
VCC = 5.0 V
VMode = Gnd
0.4
TA = 85°C
0.3 TA = 25°C
0.2 TA = –40°C
0.1
0
0 4.0 8.0 12 16
Iout, OUTPUT SINK CURRENT (mA)
Figure 11. Supply Current versus
Supply Voltage
0.8
0.6
VMode = Gnd
Pins 2, 3 = 1.5 V
VMode = VCC
Pins 2, 3 = Gnd
VMode = Vref
0.4 Pin 1 = 1.5 V
Pin 2 = Gnd
0.2
ICC measured at Pin 8
TA = 25°C
0
0 10 20 30 40
VCC, SUPPLY VOLTAGE (V)
Figure 12. Supply Current
versus Output Sink Current
1.6
1.2
0.8
VCC = 5.0 V
0.4 VMode = Gnd
TA = 25°C
0
0 4.0 8.0 12 16
Iout, OUTPUT SINK CURRENT (mA)
4 MOTOROLA ANALOG IC DEVICE DATA

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MC34161 전자부품, 판매, 대치품
MC34161 MC33161
Input VS
V2
V1
Gnd
Output VCC
Voltage
Pins 5, 6 Gnd
Figure 15. Dual Postive Overvoltage Detector
VCC
8
VHys
LED ‘ON’
VS1
R2
VS2 R1
R2
R1
1
7
+
2+
1.27V
+
3+
1.27V
2.54V
Reference
++
2.8V
++
0.6V
6
5
4
The above figure shows the MC34161 configured as a dual positive overvoltage detector. As the input voltage increases from ground, the LED will turn ‘ON’ when
VS1 or VS2 exceeds V2. With the dashed line output connection, the circuit becomes a dual positive undervoltage detector. As the input voltage decreases from the
peak towards ground, the LED will turn ‘ON’ when VS1 or VS2 falls below V1.
For known resistor values, the voltage trip points are:
+ * ǒ ) Ǔ + ǒ ) ǓV1
(Vth
VH)
R2
R1
1
V2
Vth
R2
R1
1
For a specific trip voltage, the required resistor ratio is:
+ * *R2
R1
V1
Vth VH
1
+ *R2
R1
V2
Vth
1
Input VS
V2
V1
Gnd
Output VCC
Voltage
Pins 5, 6 Gnd
Figure 16. Dual Postive Undervoltage Detector
VCC
8
VHys
LED ‘ON’
VS1
R2
VS2
R1
R2
R1
2.54V
1 Reference
7
+
2+
1.27V
+
3+
1.27V
++
2.8V
++
0.6V
4
6
5
The above figure shows the MC34161 configured as a dual positive undervoltage detector. As the input voltage decreases towards ground, the LED will turn ‘ON’
when VS1 or VS2 falls below V1. With the dashed line output connection, the circuit becomes a dual positive overvoltage detector. As the input voltage increases from
ground, the LED will turn ‘ON’ when VS1 or VS2 exceeds V2.
For known resistor values, the voltage trip points are:
+ * ǒ ) Ǔ + ǒ ) ǓV1
(Vth
VH)
R2
R1
1
V2
Vth
R2
R1
1
For a specific trip voltage, the required resistor ratio is:
+ * *R2
R1
V1
Vth VH
1
+ *R2
R1
V2
Vth
1
MOTOROLA ANALOG IC DEVICE DATA
7

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