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LOW VOLTAGE DETECTOR
R3113D SERIES
OUTLINE
NO. EA-115-0506
The R3113D series are CMOS-based voltage detector ICs with high detector threshold accuracy and ultra-low supply current, which can be operated at an extremely low voltage and is used for system reset as an example. Each of these ICs consists of a voltage reference unit, a comparator, resistors for detector threshold setting, an output driver and a hysteresis circuit. The detector threshold is fixed with high accuracy internally and does not require any adjustment. Two output types, Nch open drain type and CMOS type are available. Since the package is ultra-small SON1408-3 (MFPAK), high density mounting on board is possible .
FEATURES
* Ultra-low Supply Current .................................................................Typ. 1.4A (VDET>1.5V: VDD=VDET+1.0V) * Wide Range of Operating Voltage ...............................................0.6V to 6.0V (VDET=3.0V, Topt=25C) * Detector Threshold ............................................................................Stepwise setting with a step of 0.1V in the range from 1.2V to 4.5V is possible. * High Accuracy Detector Threshold..............................................2.0% * Low Temperature-Drift Coefficient of Detector Threshold...Typ. 100ppm/C * Two Output Types ..............................................................................Nch Open Drain and CMOS * Ultra-small Package..........................................................................SON1408-3
APPLICATIONS
* * * * * * CPU and Logic Circuit Reset Battery Checker Window Comparator Wave Shaping Circuit Battery Back-up Circuit Power Failure Detector
1
R3113D
BLOCK DIAGRAMS
R3113Dxx1A
VDD OUT
R3113Dxx1C
VDD
OUT
Vref GND
Vref GND
TIMING CHART
Release Voltage +VDET Supply Voltage Detector Threshold -VDET (VDD) Minimum Operating Voltage VSS
Detector Threshold Hysteresis
Output Voltage (OUT) VSS tPLH
2
R3113D
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 0.85V to (+VDET)+ 1.0V 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 0.85V to (+VDET)+ 1.0V and becoming of the output voltage to (VDD/2) V.
+VDET + 1.0V Input Voltage (VDD) 0.85V GND 5.0V Output Voltage 2.5V
+VDET + 1.0V Input Voltage (VDD) 0.85V GND +VDET+1.0V Output Voltage +VDET+1.0V 2 GND
tPHL tPLH
GND
tPHL
tPLH
Nch Open Drain Output
CMOS Output
SELECTION GUIDE
The detector threshold, the output type and the taping type of R3113 Series can be designated at the users' request by specifying the part number as follows;
R3113xxx1x-xx
ab Code a b c cd
Part Number
Contents Designation of Package Type; SON1408-3 Setting Detector Threshold (-VDET); Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V is possible. Designation of Output Type; A: Nch Open Drain C: CMOS Designation of Packing or Taping Type; Ex.TR prescribed as standard directions. (Refer to Taping Specifications.) Antistatic bag for samples: C
d
3
R3113D
PIN CONFIGURATION
SON1408-3
3 (mark side) 1 2
PIN DESCRIPTION
*
R3113D
Pin No. 1 2 3 Symbol OUT VDD GND Output Pin Input Pin Ground Pin Description
ABSOLUTE MAXIMUM RATINGS
Symbol VDD VOUT1 VOUT2 IOUT PD Topt Tstg Tsolder Supply Voltage Output Voltage (CMOS) Output Voltage (Nch) Output Current Power Dissipation
Note1
Item
Rating 6.5 VSS-0.3 to VDD+0.3 VSS-0.3 to 6.5 20 250 -40 to 85 -55 to 125 260C, 10s
Unit V V V mA mW C C
Operating Temperature Range Storage Temperature Range Lead temperature (Soldering)
Note 1: Applied to SON1408-3 at mounted on board PD depends on conditions of mounting on board. This specification is based on the measurement at the condition below: Measurement Conditions Environment: Mounted on board (Wind velocity 0m/s) Board Material: FR-4 (2-layer) Board dimensions: 40mm x 40mm x t1.6mm Copper Area: 50%(Both Sides) Tab pin (Pin 3) land pattern width is same as the lead, connected to the GND plane.
4
R3113D
*
ELECTRICAL CHARACTERISTICS
R3113D121A/C
Symbol -VDET VHYS ISS VDDH VDDL Item Detector Threshold Detector Threshold Hysteresis Supply Current Maximum Operating Voltage Minimum Operating VoltageNote1 Topt=25C -40C Topt 85C Nch VDS=0.05V, VDD=0.85V VDS=0.50V, VDD=1.10V Pch VDS=-2.1V, VDD=4.5V -40C
< = < = < = < =
Topt=25C
Conditions
Min. 1.176 0.036
Typ. 1.200 0.060 0.8 1.1 0.65
Max. 1.224 0.084 2.0 2.7 6 0.85 0.95
Unit V V A V V
VDD= (-VDET)-0.1V (-VDET)+1.0V
IOUT
Output Current (Driver Output Pin) Output Delay TimeNote2 Detector Threshold Temperature Coefficient
0.2 1.0 2.0
0.3 2.2 5.0 100
mA mA s ppm/C
Topt=25C
tPLH -VDET/T
Topt
85C
100
*
R3113D181A/C
Symbol -VDET VHYS ISS VDDH VDDL Item Detector Threshold Detector Threshold Hysteresis Supply Current Maximum Operating Voltage Minimum Operating VoltageNote1 Topt=25C -40C
< =
Conditions
Min. 1.764 0.054
Typ. 1.800 0.090 1.3 1.4 0.45
Max. 1.836 0.126 3.3 3.6 6 0.70 0.80
Unit V V A V V
VDD= (-VDET)-0.1V (-VDET)+1.0V
Topt
< =
85C 0.05 2.00 2.0 0.13 5.00 5.0
IOUT
Output Current (Driver Output Pin) Output Delay TimeNote2 Detector Threshold Temperature Coefficient
Nch VDS=0.05V, VDD=0.70V VDS=0.50V, VDD=1.50V Pch VDS=-2.1V, VDD=4.5V -40C
< = < =
mA mA 100 s ppm/C
tPLH -VDET/T
Topt
85C
100
5
R3113D
*
R3113D271A/C
Symbol -VDET VHYS ISS VDDH VDDL Item Detector Threshold Detector Threshold Hysteresis Supply Current Maximum Operating Voltage Minimum Operating VoltageNote1 Topt=25C -40C
< =
Topt=25C
Conditions
Min. 2.646 0.081
Typ. 2.700 0.135 1.3 1.4 0.45
Max. 2.754 0.189 3.3 3.6 6 0.70 0.80
Unit V V A V V
VDD= (-VDET)-0.1V (-VDET)+1.0V
Topt
< =
85C 0.05 2.00 2.0 0.13 5.00 5.0
IOUT
Output Current (Driver Output Pin) Output Delay TimeNote2 Detector Threshold Temperature Coefficient
Nch VDS=0.05V,VDD=0.70V VDS=0.50V,VDD=1.50V Pch VDS=-2.1V,VDD=4.5V -40C
< = < =
mA mA 100 s ppm/C
tPLH -VDET/T
Topt
85C
100
*
R3113D361A/C
Symbol -VDET VHYS ISS VDDH VDDL Item Detector Threshold Detector Threshold Hysteresis Supply Current Maximum Operating Voltage Minimum Operating VoltageNote1 Topt=25C -40C Topt 85C Nch VDS=0.05V, VDD=0.70V VDS=0.50V, VDD=1.50V Pch VDS=-2.1V, VDD=4.5V -40C
< = < = < = < =
Topt=25C
Conditions
Min. 3.528 0.108
Typ. 3.600 1.3 1.4 0.45
Max. 3.672 3.3 3.6 6 0.70 0.70
Unit V V A V V
0.180 0.252
VDD= (-VDET)-0.1V (-VDET)+1.0V
IOUT
Output Current (Driver Output Pin) Output Delay TimeNote2 Detector Threshold Temperature Coefficient
0.05 2.00 2.0
0.13 5.00 5.0 100
mA mA s ppm/C
tPLH -VDET/T
Topt
85C
100
6
R3113D
*
R3113D451A/C
Symbol -VDET VHYS ISS VDDH VDDL Item Detector Threshold Detector Threshold Hysteresis Supply Current Maximum Operating Voltage Minimum Operating VoltageNote1 Topt=25C -40C
< =
Topt=25C
Conditions
Min. 4.410 0.135
Typ. 4.500 0.225 1.3 1.4 0.45
Max. 4.590 0.315 3.3 3.6 6 0.70 0.80
Unit V V A V V
VDD= (-VDET)-0.1V (-VDET)+1.0V
Topt
< =
85C 0.05 2.00 2.5 0.13 5.00 6.0
IOUT
Output Current (Driver Output Pin) Output Delay TimeNote2 Detector Threshold Temperature Coefficient
Nch VDS=0.05V, VDD=0.70V VDS=0.50V, VDD=1.50V Pch VDS=-2.1V, VDD=6.0V -40C
< = < =
mA mA 100 s ppm/C
tPLH -VDET/T
Topt
85C
100
Note1: The Minimum operating voltage means the value of input voltage when output voltage maintains 0.1V or less. (In the case of Nch Open Drain Output type, the output pin is pulled up with a resistance of 470k to 5.0V.) Note2: In the case of CMOS Output type: The time interval between the rising edge of VDD input pulse from 0.85V to (+VDET) +1.0V and output voltage level becoming to VDD/2.
7
R3113D
ELECTRICAL CHARACTERISTICS BY DETECTOR THRESHOLD
*
R3113D121x to R3113D451x
Detector Threshold Part Number Min 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 Detector Threshold Hysteresis VHYS[V] Max. 1.224 1.326 1.428 1.530 1.632 1.734 1.836 1.938 2.040 2.142 2.244 2.346 2.448 2.550 2.652 2.754 2.856 2.958 3.060 3.162 3.264 3.366 3.468 3.570 3.672 3.774 3.876 3.978 4.080 4.182 4.284 4.386 4.488 4.590 Min. 0.036 0.039 0.042 0.045 0.048 0.051 0.054 0.057 0.060 0.063 0.066 0.069 0.072 0.075 0.078 0.081 0.084 0.087 0.090 0.093 0.096 0.099 0.102 0.105 0.108 0.111 0.114 0.117 0.120 0.123 0.126 0.129 0.132 0.135 Typ. 0.060 0.065 0.070 0.075 0.080 0.085 0.090 0.095 0.100 0.105 0.110 0.115 0.120 0.125 0.130 0.135 0.140 0.145 0.150 0.155 0.160 0.165 0.170 0.175 0.180 0.185 0.190 0.195 0.200 0.205 0.210 0.215 0.220 0.225 Max. 0.084 0.091 0.098 0.105 0.112 0.119 0.126 0.133 0.140 0.147 0.154 0.161 0.168 0.175 0.182 0.189 0.196 0.203 0.210 0.217 0.224 0.231 0.238 0.245 0.252 0.259 0.266 0.273 0.280 0.287 0.294 0.301 0.308 0.315 Condition Supply Current 1 ISS1[A] Typ. 0.8 Max. 2.0 Condition Supply Current 2 ISS2[A] Typ. 1.1 Max. 2.7
-VDET[V]
Typ. 1.200 1.300 1.400 1.500 1.600 1.700 1.800 1.900 2.000 2.100 2.200 2.300 2.400 2.500 2.600 2.700 2.800 2.900 3.000 3.100 3.200 3.300 3.400 3.500 3.600 3.700 3.800 3.900 4.000 4.100 4.200 4.300 4.400 4.500
R3113D121x R3113D131x R3113D141x R3113D151x R3113D161x R3113D171x R3113D181x R3113D191x R3113D201X R3113D211x R3113D221x R3113D231x R3113D241x R3113D251x R3113D261x R3113D271x R3113D281x R3113D291x R3113D301x R3113D311x R3113D321x R3113D331x R3113D341x R3113D351x R3113D361x R3113D371x R3113D381x R3113D391x R3113D401x R3113D411x R3113D421x R3113D431x R3113D441x R3113D451x
VDD= (-VDET) -0.10V 1.3 3.3
VDD= (-VDET) +1.0V 1.4 3.6
Note1: In the case of CMOS Output type: The time interval between the rising edge of VDD input pulse from 0.85V to (+VDET) +1.0V and output voltage level becoming to VDD/2. Condition1: Topt=25C Condition2: -40C < Topt < 85C = = Note2: The Minimum operating voltage means the value of input voltage when output voltage maintains 0.1V or less. (In the case of Nch Open Drain Output type, the output pin is pulled up with a resistance of 470k to 5.0V.)
8
R3113D
Output Current 1 IOUT1[mA] Condition Nch VDS=0.05V VDD=0.85V Min. 0.2 Typ. 0.3
Output Current 2 IOUT2[mA] Condition VDD= 1.1V Min. 1.0 Typ. 2.2
Output Delay Time tPLH[s] Max.
Minimum Operating Voltage VDDL[V] Typ. Max.
Detector Threshold Temperature Coefficient -VDET/T[ppm /C] Conditio Typ.
Note 2 Condition 1 0.85 Condition 1 0.65 Condition 2 0.95 Condition 2
Nch VDS=0.05V VDD=0.7V
Nch VDS= 0.5V 0.05 0.13
Note 1 100 VDD= 1.5V 2.0 5.0
Note 2 Condition 1 0.45 Condition 2
Note 2 Condition 1 0.70 Condition 2 0.80
-40C < = Topt < 85C =
100
9
R3113D
OPERATION
VDD Ra Pch OUT Rb Vref Rc GND Comparator Nch
Figure 1. Block Diagram
1
2
3
4 B
5
Step Comparator Pin Input Voltage Comparator Output Tr.1 Output Tr. Pch Nch
1 I H OFF ON OFF
2 II L ON
3 III Inde-finite Inde-finite
4 IV L ON
5 V H OFF ON OFF
Supply Voltage (VDD)
Released Voltage(+VDET) Detector Threshold(-VDET) A Minimum Operating Voltage GND
Detector Threshold Hysteresis
OFF Inde-finite OFF ON Inde-finite ON
Output Voltage (VOUT)
I.
GND tPLH
Rb + Rc Ra + Rb + Rc Rb Ra + Rb
x VDD x VDD
II.
Figure 2. Operation Diagram Step 1. The output voltage is equal to the supply voltage (VDD). Step 2. At Point "A", Vref > VDDx(Rb+Rc)/(Ra+Rb+Rc) is true, as a result, the output of comparator is reverse, = and output voltage becomes to GND level. The voltage level of Point A means detector threshold voltage, or (-VDET). Step 3. When the supply voltage is less than minimum operating voltage, the operation of output transistor becomes indefinite, and in the case that output is pulled up to VDD, the output voltage equals to VDD voltage. Step 4. The output voltage equals to GND level. Step 5. At Point "B", Vref > VDDxRb/(Ra+Rb) is true, Output of the comparator is reverse, and output voltage is = equal to the supply voltage, or (VDD). The voltage level of Point B means released voltage, or (+VDET). The difference between released voltage and detector threshold voltage is the detector threshold hysteresis.
10
R3113D
TEST CIRCUITS
Pull-up circuit is not necessary for CMOS Output type, or R3113DxxxC.
ISS VDD
5.0V VDD 470k
VIN
R3113D Series
GND
OUT
VIN
R3113D Series
GND
VOUT OUT
Figure 3. Supply Current Test Circuit
Figure 4. Detector Threshold Test Circuit
VDD
VDD IOUT OUT VDS VIN
VDS IOUT OUT VDD-|VDS|
VIN
R3113D Series
GND
R3113D Series
GND
Figure 5. Nch Driver Output Current Test Circuit
Figure 6. Pch Driver Output Current Test Circuit Apply only to CMOS
(+VDET)+1.0V Input Voltage 0.85V GND 100% Output Voltage 50% GND tPLH
VIN 5.0V VDD 470k
R3113D Series
GND
VOUT OUT
Figure 7. Output Delay Time Test Circuit (1)
Figure 8. Output Delay Time Test Circuit (2)
11
R3113D
TYPICAL CHARACTERISTICS
1) Supply Current vs. Input Voltage
R3113D121C
2.5 2.5
R3113D271C
Supply Current ISS(A)
2.0 Topt=85C 1.5 1.0 0.5 0.0 -40C 25C
Supply Current ISS(A)
2.0 1.5 1.0 0.5 0.0
Topt=85C 25C -40C
0
1
2 3 4 5 Input Voltage VIN(V)
6
0
1
2 3 4 5 Input Voltage VIN(V)
6
R3113D451C
2.0
Supply Current ISS(A)
1.5 1.0 0.5 0.0
Topt=85C 25C -40C
0
1
2 3 4 5 Input Voltage VIN(V)
6
2) Detector Threshold Hysteresis vs. Temperature
R3113D121C
1.30 2.900
R3113D271C
Detector Threshold -VDET(V)
Detector Threshold -VDET(V)
1.28 1.26 1.24 1.22 1.20 1.18 1.16 1.14 -60 -40 -20 0 20 40 60 Temperature Topt(C) 80 100 -VDET +VDET
2.800 2.700
+VDET
-VDET 2.600 2.500 -60 -40 -20 0 20 40 60 Temperature Topt(C)
80 100
12
R3113D
R3113D451C
4.800
Detector Threshold -VDET(V)
4.700 4.600 4.500
+VDET
-VDET 4.400 -50 -25 0 25 50 75 Temperature Topt(C) 100
3) Output Voltage vs. Input Voltage
R3113D121C
1.800
6.000
R3113D121A
5V Pull-up 470k
Output Voltage VOUT(V)
1.400 1.200 1.000 0.800 0.600 0.400 0.200 0.000 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Input Voltage VIN(V) 85C 25C Topt=-40C
Output Voltage VOUT(V)
1.600
5.000 4.000 3.000 2.000 1.000 0.000 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Input Voltage VIN(V) 85C Topt=-40C 25C
R3113D271C
4.500
6.000
R3113D271A
5V Pull-up 470k
Output Voltage VOUT(V)
3.500 3.000 2.500 2.000 1.500 1.000 0.500 85C 25C Topt=-40C
Output Voltage VOUT(V)
4.000
5.000 4.000 3.000
85C 25C Topt=-40C
2.000 1.000 0.000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Input Voltage VIN(V)
0.000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Input Voltage VIN(V)
13
R3113D
R3113D451C
7.000
6.000
R3113D451A
5V Pull-up 470k
Output Voltage VOUT(V)
Output Voltage VOUT(V)
6.000 5.000 4.000 3.000 2.000 1.000 0.000 0.0 1.0 85C 25C Topt=-40C 2.0 3.0 4.0 5.0 Input Voltage VIN(V) 6.0
5.000 4.000 3.000
85C 25C Topt=-40C
2.000 1.000 0.000 0.0 1.0 2.0 3.0 4.0 5.0 Input Voltage VIN(V) 6.0
4) Nch Driver Output Current vs. VDS
R3113D121C
900 Topt=25C 400
R3113D121C
Topt=25C
Output Current IOUT(A)
700 600 500 400 300 200 100 0 0.0 0.2
Output Current IOUT(A)
800 VDD=0.85V
350 300 250 200 150 100 50 0 0.00 0.02 0.04 0.06 VDS(V) 0.08 0.10 0.7V VDD=0.8V
0.7V
0.4 VDS(V)
0.6
0.8
R3113D271C
25 Topt=25C 400
R3113D271C
Topt=25C
Output Current IOUT(A)
20 15 10 5 0 0.0 1.5V 0.5 1.0 1.5 VDS(V)
VDD=2.5V
Output Current IOUT(A)
350 300 250 200 150 100 50 0 0.00 0.02 0.04 0.06 VDS(V) 0.08 0.10 0.7V VDD=0.8V
2.0V
2.0
2.5
14
R3113D
R3113D271C
70 Topt=25C 400
R3113D271C
Topt=25C
Output Current IOUT(A)
VDD=4.5V 4.0V 3.5V 3.0V 2.5V 2.0V 1.5V 1.0 2.0 3.0 VDS(V) 4.0
Output Current IOUT(A)
60 50 40 30 20 10 0 0.0
350 300 250 200 150 100 50 0 0.00 0.02 0.04 0.06 VDS(V) 0.08 0.10 0.7V VDD=0.8V
5) Nch Driver Output Current vs. Input Voltage
R3113D121C
3.5 VDS=0.5V -40C 18.0
R3113D271C
VDS=0.5V
Output Current IOUT(mA)
Output Current IOUT(mA)
3.0 2.5 2.0 1.5 1.0 0.5 0.0 0.00
16.0 14.0 12.0 10.0 8.0 6.0 4.0 2.0 0.0 0.00 0.50 1.00 1.50 2.00 2.50 3.00 Input Voltage VIN(V) 85C Topt=25C -40C
Topt=25C
85C
0.50 1.00 Input Voltage VIN(V)
1.50
R3113D451C
30.0 VDS=0.5V
Output Current IOUT(mA)
25.0 20.0 15.0 10.0 5.0 0.0 0.00 Topt=25C
-40C
85C
1.00 2.00 3.00 4.00 Input Voltage VIN(V)
5.00
15
R3113D
6) Pch Driver Output Current vs. Input Voltage
R3113D121C
3.0 Topt=25C 7.0
R3113D271C
Topt=25C
Output Current IOUT(mA)
2.5 2.0 1.5 1.0 0.5 0.0 0 1 2 3 4 Input Voltage VIN(V) 5 6 0.5V VDS=0.7V
Output Current IOUT(mA)
6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 1 2 3 4 Input Voltage VIN(V) VDS=2.1V 1.5V 1.0V 0.5V 5 6
R3113D451C
7.0 Topt=25C VDS=2.1V
Output Current IOUT(mA)
6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 1
1.5V 1.0V 0.5V 2 3 4 Input Voltage VIN(V) 5 6
7) Output Delay Time vs. Load Capacitance
R3113D121A
100.00 100.00
R3113D271A
Output Delay Time tPLH(mS)
Output Delay Time tPLH(mS)
10.00 1.00 0.10 0.01 0.00 0.0001 0.001 0.01 0.1 Output Pin External Capacitance COUT(F) tPLH tPHL
10.00 1.00 0.10 0.01 0.00 0.0001 0.001 0.01 0.1 Output Pin External Capacitance COUT(F) tPLH tPHL
16
R3113D
R3113D451A
100.00
Output Delay Time tPLH(mS)
10.00 1.00 0.10 0.01 0.00 0.0001 0.001 0.01 0.1 Output Pin External Capacitance COUT(F) tPLH
tPHL
8) Output Delay Time vs. Input Pin Capacitance
R3113D121A
100.00 100.00
R3113D271A
Output Delay Time tPHL(mS)
Output Delay Time tPHL(mS)
10.00 1.00 0.10 0.01 0.00 0.0001 0.001 0.01 0.1 Input Pin External Capacitance CIN(F) tPHL tPLH
10.00 1.00 tPHL 0.10 0.01 0.00 0.0001 0.001 0.01 0.1 Input Pin External Capacitance CIN(F) tPLH
R3113D451A
100.00
Output Delay Time tPHL(mS)
10.00 1.00 0.10 0.01 0.00 0.0001 0.001 0.01 0.1 Input Pin External Capacitance CIN(F) tPHL tPLH
17
R3113D
TECHNICAL NOTES
VDD
VDD
VDD OUT GND
VDD OUT GND
Figure 9
Figure 10
1. In Figure 9, When R3113Dxx1C is used, and if an impedance is connected between Voltage Supplier and the VDD Pin of R3113Dxx1C Series, the operation might be unstable by cross conduction current at detection. When R3113Dxx1A is used in Figure 9, if the value of R is set excessively large, voltage drop may occur caused by supply current of IC itself and Detector threshold may vary. 2. Wiring as shown in Figure 10 may cause the oscillation in both output types of R3113 Series.
18

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