LOW VOLTAGE DETECTOR
R3113D SERIES
1
OUTLINE
The R3113 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. 1.4
A (V
DET
>
1.5V: V
DD
=V
DET
+1.0V)
Wide Range of Operating Voltage......................................... 0.6V to 6.0V (V
DET
=3.0V, Topt
=
25
C)
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
BLOCK DIAGRAMS
R3113Dxx1A
R3113Dxx1C
V
DD
OUT
GND
Vref
V
DD
OUT
GND
Vref
R3113D
2
TIMING CHART
t
PLH
Supply Voltage
Output Voltage
(OUT)
Minimum Operating Voltage
V
SS
V
SS
Detector Threshold
Hysteresis
(V
DD
)
Release Voltage +V
DET
Detector Threshold -V
DET
DEFINITION OF OUTPUT DELAY TIME
Output Delay Time t
PLH
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 V
DD
pulse from 0.7V to (
+
V
DET
)
+
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 V
DD
pulse from 0.7V to (
+
V
DET
)
+
2.0V and becoming of the output
voltage to (V
DD
/
2) V.
+V
DET
+ 2.0V
5.0V
2.5V
0.7V
Input Voltage
(V
DD
)
Output Voltage
GND
GND
t
PHL
t
PLH
+V
DET
+ 2.0V
+V
DET
+2.0V
+V
DET
+2.0V
0.7V
Input Voltage
(V
DD
)
Output Voltage
GND
2
GND
t
PHL
t
PLH
Nch Open Drain Output
CMOS Output
R3113D
3
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;
R3113xxxxx-xx
Part Number
a
b
c
d
e
Code Descriptions
a
Designation of Package Type;
D: SON1408-3
b
Setting Detector Threshold (
-
V
DET
);
Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V is possible.
c
Designation of Package Type: 1 (Fixed)
d
Designation of Output Type;
A: Nch Open Drain
C: CMOS
e
Designation of Packing or Taping Type;
Ex. TR prescribed as standard directions.
(Refer to Taping Specifications.) Antistatic bag for samples: C
PIN CONFIGURATION
SON1408-3
PIN DESCRIPTION
z
SON1408-3
Pin No. Symbol
1 OUT
2 V
DD
3 GND
1
2
(mark side)
3
R3113D
4
ABSOLUTE MAXIMUM RATINGS
Symbol Item Rating
Unit
V
DD
Supply
Voltage
6.5
V
V
OUT1
Output
Voltage
(CMOS)
V
SS
-
0.3 to V
DD
+
0.3
V
V
OUT2
Output
Voltage
(Nch)
V
SS
-
0.3 to 6.5
V
I
OUT
Output
Current
20
mA
P
D
Power Dissipation
Note1
250 mW
Topt
Operating Temperature Range
-
40 to 85
C
Tstg
Storage Temperature Range
-
55 to 125
C
Tsolder
Lead temperature (Soldering)
260
C, 10s
Note 1: Applied to SON1408-3 at mounted on board
P
D
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.
ELECTRICAL CHARACTERISTICS
R3113D121A/C
Topt
=
25
C
Symbol Item
Conditions
Min.
Typ.
Max.
Unit
-
V
DET
Detector Threshold
1.176 1.200 1.224
V
V
HYS
Detector Threshold Hysteresis
0.036 0.060 0.084
V
I
SS
Supply
Current
V
DD
=
(-V
DET
)-0.1V
(-V
DET
)+1.0V
0.8
1.1
2.0
2.7
A
V
DDH
Maximum
Operating
Voltage
6 V
Topt
=
25
C
0.65
0.85
V
DDL
Minimum Operating Voltage
Note1
-
40
C
<
=
Topt
<
=
85
C
0.95
V
Nch
V
DS
=
0.05V, V
DD
=
0.85V
V
DS
=
0.50V, V
DD
=1.10
V
0.2
1.0
0.3
2.2
mA
I
OUT
Output Current (Driver Output Pin)
Pch
V
DS
=-
2.1V, V
DD
=
4.5V
2.0
5.0
mA
t
PLH
Output Delay Time
Note2
100
s
-
V
DET
/
T
Detector Threshold Temperature
Coefficient
-
40
C
<
=
Topt
<
=
85
C
100
ppm/
C
R3113D
5
R3113D181A/C
Topt
=
25
C
Symbol Item
Conditions
Min.
Typ.
Max.
Unit
-
V
DET
Detector Threshold
1.764 1.800 1.836
V
V
HYS
Detector Threshold Hysteresis
0.054 0.090 0.126
V
I
SS
Supply
Current
V
DD
=
(-V
DET
)-0.1V
(-V
DET
)+1.0V
1.3
1.4
3.3
3.6
A
V
DDH
Maximum
Operating
Voltage
6 V
Topt
=
25
C
0.45
0.70
V
DDL
Minimum Operating Voltage
Note1
-
40
C
<
=
Topt
<
=
85
C
0.80
V
Nch
V
DS
=
0.05V, V
DD
=
0.70V
V
DS
=
0.50V, V
DD
=1
.50V
0.05
2.00
0.13
5.00
mA
I
OUT
Output Current (Driver Output Pin)
Pch
V
DS
=-
2.1V, V
DD
=
4.5V
2.0
5.0
mA
t
PLH
Output Delay Time
Note2
100
s
-
V
DET
/
T
Detector Threshold Temperature
Coefficient
-
40
C
<
=
Topt
<
=
85
C
100
ppm/
C
R3113D271A/C
Topt
=
25
C
Symbol Item
Conditions
Min.
Typ.
Max.
Unit
-
V
DET
Detector Threshold
2.646 2.700 2.754
V
V
HYS
Detector Threshold Hysteresis
0.081 0.135 0.189
V
I
SS
Supply
Current
V
DD
=
(-V
DET
)-0.1V
(-V
DET
)+1.0V
1.3
1.4
3.3
3.6
A
V
DDH
Maximum
Operating
Voltage
6 V
Topt
=
25
C
0.45
0.70
V
DDL
Minimum Operating Voltage
Note1
-
40
C
<
=
Topt
<
=
85
C
0.80
V
Nch
V
DS
=
0.05V,V
DD
=
0.70V
V
DS
=
0.50V,V
DD
=
1.50V
0.05
2.00
0.13
5.00
mA
I
OUT
Output Current (Driver Output Pin)
Pch
V
DS
=-
2.1V,V
DD
=
4.5V
2.0
5.0
mA
t
PLH
Output Delay Time
Note2
100
s
-
V
DET
/
T
Detector Threshold Temperature
Coefficient
-
40
C
<
=
Topt
<
=
85
C
100
ppm/
C
R3113D
6
R3113D361A/C
Topt
=
25
C
Symbol Item
Conditions
Min.
Typ.
Max.
Unit
-
V
DET
Detector Threshold
3.528 3.600
3.672
V
V
HYS
Detector Threshold Hysteresis
0.108 0.180
0.252
V
I
SS
Supply Current
V
DD
=
(-V
DET
)-0.1V
(-V
DET
)+1.0V
1.3
1.4
3.3
3.6
A
V
DDH
Maximum
Operating
Voltage
6
V
Topt
=
25
C
0.45
0.70
V
DDL
Minimum Operating Voltage
Note1
-
40
C
<
=
Topt
<
=
85
C
0.70
V
Nch
V
DS
=
0.05V, V
DD
=
0.70V
V
DS
=
0.50V, V
DD
=
1.50V
0.05
2.00
0.13
5.00
mA
I
OUT
Output Current (Driver Output Pin)
Pch
V
DS
=-
2.1V, V
DD
=
4.5V
2.0
5.0
mA
t
PLH
Output Delay Time
Note2
100
s
-
V
DET
/
T
Detector Threshold Temperature
Coefficient
-
40
C
<
=
Topt
<
=
85
C
100
ppm/
C
R3113D451A/C
Topt
=
25
C
Symbol Item
Conditions
Min.
Typ.
Max.
Unit
-
V
DET
Detector Threshold
4.410 4.500 4.590
V
V
HYS
Detector Threshold Hysteresis
0.135 0.225 0.315
V
I
SS
Supply
Current
V
DD
=
(-V
DET
)-0.1V
(-V
DET
)+1.0V
1.3
1.4
3.3
3.6
A
V
DDH
Maximum
Operating
Voltage
6 V
Topt
=
25
C
0.45
0.70
V
DDL
Minimum Operating Voltage
Note1
-
40
C
<
=
Topt
<
=
85
C
0.80
V
Nch
V
DS
=
0.05V, V
DD
=
0.70V
V
DS
=
0.50V, V
DD
=
1.50V
0.05
2.00
0.13
5.00
mA
I
OUT
Output Current (Driver Output Pin)
Pch
V
DS
=-
2.1V, V
DD
=6
.0V
2.5
6.0
mA
t
PLH
Output Delay Time
Note2
100
s
-
V
DET
/
T
Detector Threshold Temperature
Coefficient
-
40
C
<
=
Topt
<
=
85
C
100
ppm/
C
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 V
DD
input pulse from
0.7V
to (
+
V
DET
)
+
2.0V and output voltage level becoming to V
DD
/2.
R3113D
7
ELECTRICAL CHARACTERISTICS BY DETECTOR THRESHOLD
R3113D121x to R3113D451x
Detector Threshold
Detector Threshold
Hysteresis
Supply Current 1
Supply Current 2
-
-
-
-
V
DET
[V]
V
HYS
[V]
I
SS1
[
A] I
SS2
[
A]
Part
Number
Min
Typ. Max. Min. Typ.
Max.
Condition
Typ.
Max. Condition Typ.
Max.
R3113D121x 1.1
1.200 1.224 0.036 0.060
0.084
R3113D131x 1.2
1.300 1.326 0.039 0.065
0.091
R3113D141x 1.3
1.400 1.428 0.042 0.070
0.098
R3113D151x 1.4
1.500 1.530 0.045 0.075
0.105
0.8 2.0
1.1 2.7
R3113D161x 1.5
1.600 1.632 0.048 0.080
0.112
R3113D171x 1.6
1.700 1.734 0.051 0.085
0.119
R3113D181x 1.7
1.800 1.836 0.054 0.090
0.126
R3113D191x 1.8
1.900 1.938 0.057 0.095
0.133
R3113D201x 1.9
2.000 2.040 0.060 0.100
0.140
R3113D211x 2.0
2.100 2.142 0.063 0.105
0.147
R3113D221x 2.1
2.200 2.244 0.066 0.110
0.154
R3113D231x 2.2
2.300 2.346 0.069 0.115
0.161
R3113D241x 2.3
2.400 2.448 0.072 0.120
0.168
R3113D251x 2.4
2.500 2.550 0.075 0.125
0.175
R3113D261x 2.5
2.600 2.652 0.078 0.130
0.182
R3113D271x 2.6
2.700 2.754 0.081 0.135
0.189
R3113D281x 2.7
2.800 2.856 0.084 0.140
0.196
R3113D291x 2.8
2.900 2.958 0.087 0.145
0.203
R3113D301x 2.9
3.000 3.060 0.090 0.150
0.210
R3113D311x 3.0
3.100 3.162 0.093 0.155
0.217
R3113D321x 3.1
3.200 3.264 0.096 0.160
0.224
R3113D331x 3.2
3.300 3.366 0.099 0.165
0.231
R3113D341x 3.3
3.400 3.468 0.102 0.170
0.238
R3113D351x 3.4
3.500 3.570 0.105 0.175
0.245
R3113D361x 3.5
3.600 3.672 0.108 0.180
0.252
R3113D371x 3.6
3.700 3.774 0.111 0.185
0.259
R3113D381x 3.7
3.800 3.876 0.114 0.190
0.266
R3113D391x 3.8
3.900 3.978 0.117 0.195
0.273
R3113D401x 3.9
4.000 4.080 0.120 0.200
0.280
R3113D411x 4.0
4.100 4.182 0.123 0.205
0.287
R3113D421x 4.1
4.200 4.284 0.126 0.210
0.294
R3113D431x 4.2
4.300 4.386 0.129 0.215
0.301
R3113D441x 4.3
4.400 4.488 0.132 0.220
0.308
R3113D451x 4.4
4.500 4.590 0.135 0.225
0.315
V
DD
=
(
-
V
DET
)
-
0.10V
1.3 3.3
V
DD
=
(
-
V
DET
)
+1
.0V
1.4 3.6
R3113D
8
Output Current 1
Output Current 2
Output Delay
Time
Minimum
Operating Voltage
Detector Threshold
Temperature Coefficient
I
OUT1
[mA] I
OUT2
[mA]
t
PLH
[
s]
V
DDL
[V]
-
-
-
-
V
DET
/
T[ppm/
C]
Condition Min. Typ.
Condition Min.
Typ.
Max.
Typ.
Max. Condition
Typ.
Nch
V
DS
=
0.05V
V
DD
=
0.85V
0.2 0.3
V
DD
=
1.1V
1.0 2.2
Note 2
Condition 1
0.65
Condition 2
Condition 1
0.85
Condition 2
0.95
Nch
V
DS
=
0.05V
V
DD
=
0.7V
0.05 0.13
Nch
V
DS
=
0.5V
V
DD
=
1.5V
2.0 5.0
Note 1
100
Note 2
Condition 1
0.45
Condition 2
Note 2
Condition 1
0.70
Condition 2
0.80
-
40
C
<
=
Topt
<
=
85
C
100
R3113D
9
OPERATION
V
DD
OUT
GND
Vref
Ra
Rb
Rc
Pch
Nch
Comparator
Figure 1. Block Diagram
t
PLH
Supply Voltage
(V
DD
)
Output Voltage
(V
OUT
)
Released Voltage(+V
DET
)
Detector Threshold(-V
DET
)
Detector Threshold
Hysteresis
1
2
3
4
5
A
B
Minimum Operating Voltage
GND
GND
Step 1
2
3
4
5
Comparator
Pin Input Voltage
I II III IV
V
Comparator
Output
H L
Inde-finite
L
H
Tr.1 OFF
ON
Inde-finite ON OFF
Pch
ON OFF Inde-finite OFF ON
Output
Tr.
Nch
OFF ON Inde-finite ON OFF
Rb
+
Rc
I.
Ra
+
Rb
+
Rc
V
DD
Rb
II.
Ra
+
Rb
V
DD
Figure 2. Operation Diagram
Step 1. The output voltage is equal to the supply voltage (V
DD
).
Step 2. At Point "A", Vref
>
=
V
DD
(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 (
-
V
DET
).
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 V
DD
, the output voltage equals to V
DD
voltage.
Step 4. The output voltage equals to GND level.
Step 5. At Point "B", Vref
>
=
V
DD
Rb/(Ra
+
Rb) is true, Output of the comparator is reverse, and output voltage is
equal to the supply voltage, or (V
DD
). The voltage level of Point B means released voltage, or (
+
V
DET
).
The difference between released voltage and detector threshold voltage is the detector threshold hysteresis.
R3113D
10
TEST CIRCUITS
Pull-up circuit is not necessary for CMOS Output type, or R3113xxxxC.
Figure 3. Supply Current Test Circuit
Figure 4. Detector Threshold Test Circuit
Apply to CMOS Output type only
Figure 5. Nch Driver Output Current Test
Circuit
Figure 6. Pch Driver Output Current Test Circuit
Figure 7. Output Delay Time Test Circuit (1)
Figure 8. Output Delay Time Test Circuit (2)
R3113D
Series OUT
V
DD
GND
I
SS
R3113D
Series
OUT
V
DD
GND
470k
V
IN
V
IN
5.0V
V
OUT
R3113D
Series OUT
V
DD
GND
V
IN
I
OUT
V
DS
R3113D
Series OUT
V
DD
GND
V
IN
I
OUT
V
DD
-|V
DS
|
V
DS
0.
85V
GND
(+V
DET
)+
1
.0V
GND
Output
Voltage
R3113D
Series
OUT
V
DD
GND
470k
Input
Voltage
V
IN
5.0V
V
OUT
t
PLH
100%
50%
R3113D
11
TYPICAL CHARACTERISTICS
1) Supply Current vs. Input Voltage
2) Detector Threshold Hysteresis vs. Temperature
R3113D121C
0.0
0.5
1.0
1.5
2.0
2.5
0
1
2
3
4
5
6
Input Voltage V
IN(
V)
S
uppl
y
Current
I
SS
(
A
)
Topt=85
C
25C
-40C
R3113D271C
0.0
0.5
1.0
1.5
2.0
2.5
0
1
2
3
4
5
6
Input Voltage V
IN
(V)
S
uppl
y
Current
I
SS
(
A
)
Topt=85
C
25C
-40C
R3113D451C
0.0
0.5
1.0
1.5
2.0
0
1
2
3
4
5
6
Input Voltage V
IN
(V)
S
uppl
y
Current
I
SS
(
A
)
25C
Topt=85
C
-40C
R3113D121C
1.14
1.16
1.18
1.20
1.22
1.24
1.26
1.28
1.30
-60
-40
-20
0
20
40
60
80
100
Temperature Topt(
C)
Det
e
c
t
or Thres
hol
d -V
DET
(V
)
+V
DET
-V
DET
R3113D271C
2.500
2.600
2.700
2.800
2.900
-60
-40
-20
0
20
40
60
80
100
Temperature Topt(
C)
Det
e
c
t
or Thres
hol
d -V
DET
(V
)
+V
DET
-V
DET
R3113D
12
3) Output Voltage vs. Input Voltage
R3113D451C
4.400
4.500
4.600
4.700
4.800
-50
-25
0
25
50
75
100
Temperature Topt(
C)
Det
e
c
t
or Thres
hol
d -V
DET
(V
)
+V
DET
-V
DET
R3113D121C
0.000
0.200
0.400
0.600
0.800
1.000
1.200
1.400
1.600
1.800
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Input Voltage V
IN
(V)
Out
put
V
o
l
t
age V
OUT
(V
)
85
C
Topt=-40C
25C
R3113D121A
0.000
1.000
2.000
3.000
4.000
5.000
6.000
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
Input Voltage V
IN
(V)
Out
put
V
o
l
t
age V
OUT
(V
)
Topt=-40C
25
C
85
C
5V Pull-up 470k
R3113D271C
0.000
0.500
1.000
1.500
2.000
2.500
3.000
3.500
4.000
4.500
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Input Voltage V
IN
(V)
Out
put
V
o
l
t
age V
OUT
(V
)
85
C
Topt=-40C
25C
R3113D271A
0.000
1.000
2.000
3.000
4.000
5.000
6.000
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Input Voltage V
IN
(V)
Out
put
V
o
l
t
age V
OUT
(V
)
Topt=-40C
25
C
85
C
5V Pull-up 470k
R3113D
13
4) Nch Driver Output Current vs. V
DS
R3113D451C
0.000
1.000
2.000
3.000
4.000
5.000
6.000
7.000
0.0
1.0
2.0
3.0
4.0
5.0
6.0
Input Voltage V
IN
V
Out
put
V
o
l
t
age V
OUT
(V
)
85
C
Topt=-40C
25C
R3113D451A
0.000
1.000
2.000
3.000
4.000
5.000
6.000
0.0
1.0
2.0
3.0
4.0
5.0
6.0
Input Voltage V
IN(
V)
Out
put
V
o
l
t
age V
OUT
(V
)
Topt=-40C
25C
85
C
5V Pull-up 470k
R3113D121C
0
100
200
300
400
500
600
700
800
900
0.0
0.2
0.4
0.6
0.8
V
DS(
V)
Out
put
Current
I
OUT
(
A
)
Topt=25
C
V
DD
=0.85V
0.7V
R3113D121C
0
50
100
150
200
250
300
350
400
0.00
0.02
0.04
0.06
0.08
0.10
V
DS
V
Out
put
Current
I
OU
T
(
A
)
Topt=25
C
V
DD
=0.8V
0.7V
R3113D271C
0
5
10
15
20
25
0.0
0.5
1.0
1.5
2.0
2.5
V
DS(
V)
Out
put
Current
I
OUT
(m
A
)
Topt=25
C
V
DD
=2.5V
2.0V
1.5V
R3113D271C
0
5
10
15
20
25
0.0
0.5
1.0
1.5
2.0
2.5
V
DS(
V)
Out
put
Current
I
OUT
(m
A
)
Topt=25
C
V
DD
=2.5V
2.0V
1.5V
R3113D
14
5) Nch Driver Output Current vs. Input Voltage
R3113D451C
0
10
20
30
40
50
60
70
0.0
1.0
2.0
3.0
4.0
V
DS
(V)
Out
put
Current
I
OUT
(m
A
)
Topt=25
C
V
DD
=4.5V
4.0V
3.5V
3.0V
2.5V
2.0V
1.5V
R3113D451C
0
50
100
150
200
250
300
350
400
0.00
0.02
0.04
0.06
0.08
0.10
V
DS(
V)
Out
put
Current
I
OUT
(
A
)
Topt=25
C
V
DD
=0.8V
0.7V
R3113D121C
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0.00
0.50
1.00
1.50
Input Voltage V
IN(
V)
Out
put
Current
I
OUT
(m
A
)
Topt=25C
85C
-40C
V
DS
=0.5V
R3113D271C
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
0.00
0.50
1.00
1.50
2.00
2.50
3.00
Input Voltage V
IN
(V)
Out
put
Current
I
OUT
(m
A
)
V
DS
=0.5V
Topt=25
C
85C
-40C
R3113D451C
0.0
5.0
10.0
15.0
20.0
25.0
30.0
0.00
1.00
2.00
3.00
4.00
5.00
Input Voltage V
IN(
V)
Out
put
Current
I
OUT
(m
A
)
V
DS
=0.5V
Topt=25
C
85C
-40C
R3113D
15
6) Pch Driver Output Current vs. Input Voltage
7) Output Delay Time vs. Load Capacitance
R3113D121C
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0
1
2
3
4
5
6
Input Voltage V
IN(
V)
Out
put
Current
I
OU
T
(m
A
)
V
DS
=0.7V
0.5V
Topt=25C
R3113D271C
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
0
1
2
3
4
5
6
Input Voltage V
IN
V
Out
put
Current
I
OUT
(m
A
)
V
DS
=2.1V
1.5V
1.0V
0.5V
Topt=25C
R3113D451C
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
0
1
2
3
4
5
6
Input Voltage V
IN(
V)
Out
put
Current
I
OUT
(m
A
)
V
DS
=2.1V
1.5V
1.0V
0.5V
Topt=25C
R3113D121A
0.00
0.01
0.10
1.00
10.00
100.00
0.0001
0.001
0.01
0.1
Output Pin External Capacitance C
OUT(
F)
Out
put
Del
a
y
Ti
m
e
t
P
LH(m
s
)
tPLH
tPHL
R3113D271A
0.00
0.01
0.10
1.00
10.00
100.00
0.0001
0.001
0.01
0.1
Output Pin External Capacitance C
OUT(
F)
Out
put
Del
a
y
Ti
m
e
t
P
LH(m
s
)
tPLH
tPHL
R3113D
16
8) Output Delay Time vs. Input Pin Capacitance
R3113D451A
0.00
0.01
0.10
1.00
10.00
100.00
0.0001
0.001
0.01
0.1
Output pin External Capacitance C
OUT(
F)
Out
put
Del
a
y
Ti
m
e
t
P
LH(m
s
)
tPLH
tPHL
R3113D121A
0.00
0.01
0.10
1.00
10.00
100.00
0.0001
0.001
0.01
0.1
Input Pin External Capacitance C
IN(
F)
O
u
tp
u
t
D
e
l
a
y T
i
me
tPH
L
(
m
s)
tPLH
tPHL
R3113D271A
0.00
0.01
0.10
1.00
10.00
100.00
0.0001
0.001
0.01
0.1
Input Pin External Capacitance C
IN(
F)
O
u
tp
u
t
D
e
la
y Time
tPH
L
(
m
s)
tPHL
tPLH
R3113D451A
0.001
0.010
0.100
1.000
10.000
100.000
0.0001
0.001
0.01
0.1
Input Pin External Capacitance C
IN
F
Out
put
Del
a
y
T
i
m
e
t
P
HL(m
s
)
tPLH
tPHL
R3113D
17
TECHNICAL NOTES
Figure 9
Figure 10
1. In Figure 9, When R3113Dxx1C is used, and if an impedance is connected between Voltage Supplier
and the V
DD
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.
OUT
V
DD
GND
V
DD
OUT
V
DD
GND
V
DD
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