VOLTAGE DETECTOR
WITH OUTPUT DELAY
RN5VD SERIES
1
OUTLINE
The RN5VD Series are CMOS-based voltage detector ICs with output delay functions and high detector
threshold accuracy and ultra-low supply current, which can be operated at an extremely low voltage and is
used,for instance, for system reset.
Each of these ICs consists of a voltage reference unit, a comparator, resistors for voltage detection, an
output driver, a hysteresis circuit and an output delay generator. The detector threshold is fixed with high
accuracy in the IC and requires no adjustment.
The RN5VD Series are operable by a lower voltage than that for the Rx5VL Series, and can be driven by
a single battery.
Two output types, Nch open drain type and CMOS type, are available. Since the package for these ICs
is SOT-23-5(Mini-mold)package, high density mounting of the ICs on board is possible.
• Output Delay ......................................................Typ. 100ms with external capacitor : 0.15µF
• Ultra-low Supply Current .................................Typ. 1.0µA (RN5VD15x : VDD=3.5V)
• Broad Operating Voltage Range.......................0.7V to 10.0V
• Detector Threshold ............................................Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V is
................................................................................possible. (refer to Selection Guide) .
• High Accuracy Detector Threshold ..................±2.5%
• Low Temperature-Drift Coefficient of Detector Threshold ...........Typ. ±100ppm/˚C
• Two Output Types..............................................Nch Open Drain and CMOS
• Small Package ....................................................SOT-23-5(Mini-mold)
FEATURES
APPLICATIONS
CPU & Logic Circuit Reset
Battery Checker
Window Comparator
Wave Shaping Circuit
Battery Back-Up Circuit
Power Failure Detector
NO. EA-027-090421
RN5VD
2
BLOCK DIAGRAMS
Nch Open Drain Output (RN5VDxxA) CMOS Output (RN5V DxxC)
GND
V
DD
-
+
Vref
OUT
R
D
C
D
GND
V
DD
-
+
Vref
OUT
R
D
C
D
SELECTION GUIDE
The detector threshold, the output type for the ICs can be selected at the users’ request.
The selection can be made with designating the part number as shown below;
RN5VDxxxA-xx -x Part Number
a b c d e
Code Contents
a Designation of Packa ge Type;
N: SOT-23-5
b Setting Detector Threshold (-VDET);
Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V is possible.
c Designation of Output Type;
A: Nch Open Drain
C: CMOS
d Designation of Taping Type;
TR (Refer to Taping Specifications; TR type is the standard direction.)
e Designation of Composition of pin plating
-F: Lead free solder plating (SOT-2 3-5)
For example, the Product with Detector Threshold 4.5V and Output Type Nch Open Drain is designated by Part
Number RN5VD45AA-TR -F.
RN5VD
3
ABSOLUTE MAXIMUM RATINGS
Symbol Item Rating Unit
VDD Supply Voltage 12
VOUT Output Voltage
IOUT Output Current
Power Dissipation
CNOS VSS0.3 to VDD+0.3
Nch
70
PD150
VSS0.3 to 12
V
V
mA
mW
Operating Temperature Range
Topt 40 to +85 ˚C
Storage Temperature RangeTstg 55 to +125 ˚C
Lead Temperature (Soldering) Tsolder 260˚C, 10s
Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under any
conditions. Moreover, such values for any two items must not be reached simultaneously. Operation above
these absolute maximum ratings may cause degradation or permanent damage to the device. These are stress
ratings only and do not necessarily imply functional operation below these limits.
ABSOLUTE MAXIMUM RATINGS
PIN DESCRIPTION
Pin No. Symbol Description
1OUT Output Pin
Input and power source for device itself
Ground Pin
No Connection
Pin for external capacitor (for setting output delay)
2 VDD
3GND
4NC
5 CD
PIN CONFIGURATION
SOT-23-5
123
54
(mark side)
RN5VD
4
VDD=0.8V
VDD=2.9V
VDET
Topt
ELECTRICAL CHARACTERISTICS
RN5VD09A/C
Topt=25˚C
Symbol Item Conditions Min. Typ. Max. Unit.
VDET
VHYS
ISS
Detector Threshold
Detector Threshold Hysteresis
Supply Current
0.878 0.900 0.922 V
0.027 0.045 0.063 V
1.5
0.9
3.7
2.7
µA
VDDH Maximum Operating Voltage 10 V
VDDL Minimum Operating Voltage
(Note 1)
Topt=25˚C
30˚CTopt85˚C
0.55
0.65
0.70
0.80
V
IOUT Output Current
Nch
Pch
VDS=0.05V, VDD=0.7V
VDS=0.5V, VDD=0.85V
VDS=2.1V, VDD=4.5V
0.01
0.05
1.0
0.05
0.50
2.0
mA
VTCD CDpin Threshold Voltage VDD=0.99V 0.297 0.495 0.693 V
mA
RDDelay Resistance 0.5 1.0 2.0 M
Detector Threshold
Temperature Coefficient 30˚CTopt85˚C±100 ppm/˚C
ICD CDpin Sink Current
VDS=0.1V, VDD=0.7V
VDS=0.5V, VDD=0.85V
2.0
10.0
30
100.0
µA
(Note 1) Minimum Operating Voltage means the value of input voltage when output voltage maintains 0.1V or less, provided that in the case of Nch
Open Drain Type Products, the pull-up resistance is set at 470k, and the pull-up voltage is set at 5.0V.
RN5VD
5
RN5VD18A/C
Topt=25˚C
Symbol Item Conditions Min. Typ. Max. Unit.
VDET
VHYS
ISS
VDDH
Detector Threshold
Detector Threshold Hysteresis
Supply Current
Maximum Operating Voltage
VDD=1.7V
VDD=3.8V
1.755 1.800 1.845 V
0.054 0.090 0.126 V
2.5
1.0
5.0
3.0
µA
10 V
VDDL Minimum Operating Voltage
(Note 1)
Topt=25˚C
30˚CTopt85˚C
0.55
0.65
0.70
0.80 V
IOUT Output Current
Nch
Pch VDS=2.1V, VDD=4.5V
VDS=0.05V, VDD=0.7V
VDS=0.5V, VDD=1.5V
0.01
1.0
0.05
2.0
1.0 2.0
mA
mA
VTCD CDpin Threshold Voltage VDD=1.98V 0.693 0.990 1.287 V
ICD CDpin Sink Current
VDS=0.1V, VDD=0.7V
VDS=0.5V, VDD=1.5V
2.0
200.0
30
800.0
µA
RDDelay Resistance 0.5 1.0 2.0 M
VDET
Topt
Detector Threshold
Temperature Coefficient 30˚CTopt85˚C±100 ppm/˚C
(Note 1) Minimum Operating Voltage means the value of input voltage when output voltage maintains 0.1V or less, provided that in the case of Nch
Open Drain Type Products, the pull-up resistance is set at 470k, and the pull-up voltage is set at 5.0V.
RN5VD
6
RN5VD27A/C
Topt=25˚C
Symbol Item Conditions Min. Typ. Max. Unit.
VDET
VHYS
ISS
VDDH
Detector Threshold
Detector Threshold Hysteresis
Supply Current
Maximum Operating Voltage
VDD=2.6V
VDD=4.7V
2.633 2.700 2.767 V
0.081 0.135 0.189 V
3.5
1.1
7.0
3.3
µA
10 V
VDDL Minimum Operating Voltage
(Note 1)
Topt=25˚C
30˚CTopt85˚C
0.55
0.65
0.70
0.80 V
IOUT Output Current
Nch
Pch VDS=2.1V, VDD=4.5V
VDS=0.05V, VDD=0.7V
VDS=0.5V, VDD=1.5V
0.01
1.0
0.05
2.0
1.0 2.0
mA
mA
VTCD CDpin Threshold Voltage VDD=2.97V 1.188 1.485 1.782 V
ICD CDpin Sink Current
VDS=0.1V, VDD=0.7V
VDS=0.5V, VDD=1.5V
2.0
200.0
30
800.0
µA
RDDelay Resistance 0.5 1.0 2.0 M
VDET
Topt
Detector Threshold
Temperature Coefficient 30˚CTopt85˚C±100 ppm/˚C
( Note 1) Minimum Operating Voltage means the value of input voltage when output voltage maintains 0.1V or less, provided that in the case of Nch
Open Drain Type Products, the pull-up resistance is set at 470k, and the pull-up voltage is set at 5.0V.
RN5VD
7
RN5VD36A/C
Topt=25˚C
Symbol Item Conditions Min. Typ. Max. Unit.
VDET
VHYS
Detector Threshold
Detector Threshold Hysteresis
3.510 3.600 3.690 V
0.108 0.180 0.252 V
ISS Supply Current
VDD=3.47V
VDD=5.6V
4.5
1.2
9.0
3.6
µA
VDDH Maximum Operating Voltage 10 V
VDDL Minimum Operating Voltage
(Note 1)
Topt=25˚C
30˚CTopt85˚C
0.55
0.65
0.70
0.80 V
IOUT Output Current
Nch
Pch
VDS=0.05V, VDD=0.7V
VDS=0.5V, VDD=1.5V
VDS=2.1V, VDD=4.5V
0.01
1.0 2.0
1.0 2.0
0.05
mA
mA
VTCD CDpin Threshold Voltage VDD=3.96V 1.584 1.980 2.376 V
ICD CDpin Sink Current
VDS=0.1V, VDD=0.7V
VDS=0.5V, VDD=1.5V
2.0
200.0
30
800.0
µA
RDDelay Resistance 0.5 1.0 2.0 M
VDET
Topt
Detector Threshold
Temperature Coefficient 30˚CTopt85˚C±100 ppm/˚C
(Note 1) Minimum Operating Voltage means the value of input voltage when output voltage maintains 0.1V or less, provided that in the case of Nch
Open Drain Type Products, the pull-up resistance is set at 470k, and the pull-up voltage is set at 5.0V.
RN5VD
8
RN5VD45A/C
Topt=25˚C
Symbol Item Conditions Min. Typ. Max. Unit.
VDET
VHYS
Detector Threshold
Detector Threshold Hysteresis
4.388 4.500 4.612 V
0.135 0.225 0.315 V
ISS Supply Current
VDD=4.34V
VDD=6.5V
5.5
1.3
11.0
3.9
µA
VDDL Minimum Operating Voltage
(Note 1)
Topt=25˚C
30˚CTopt85˚C
0.55
0.65
0.70
0.80 V
IOUT Output Current
VTCD CDpin Threshold Voltage
Nch
VDS=0.05V, VDD=0.7V
VDS=0.5V, VDD=1.5V
VDS=2.1V, VDD=8.0VPch
0.01
1.0
0.05
2.0
1.5 3.0
VDD=4.95V 1.980 2.475 2.970 V
ICD CDpin Sink Current
VDS=0.1V, VDD=0.7V
VDS=0.5V, VDD=1.5V
2.0
200.0
30
800.0
µA
RDDelay Resistance 0.5 1.0 2.0 M
VDET
Topt
Detector Threshold
Temperature Coefficient 30˚CTopt85˚C±100 ppm/˚C
mA
mA
VDDH Maximum Operating Voltage 10 V
(Note 1) Minimum Operating Voltage means the value of input voltage when output voltage maintains 0.1V or less, provided that in the case of Nch
Open Drain Type Products, the pull-up resistance is set at 470k, and the pull-up voltage is set at 5.0V.
RN5VD
9
RN5VD54A/C
Topt=25˚C
Symbol Item Conditions Min. Typ. Max. Unit.
VDET Detector Threshold 5.265 5.400 5.535
0.378
V
VHYS Detector Threshold Hysteresis 0.162 0.270 V
12.0
4.2
ISS Supply Current
VDD=5.2V
VDD=7.4V
6.0
1.4
µA
10VDDH Maximum Operating Voltage V
0.70
0.80
VDDL Minimum Operating Voltage
(Note 1)
Topt=25˚C
30˚CTopt85˚C
0.55
0.65 V
0.05
2.0
3.564VTCD CDpin Threshold Voltage VDD=5.94V 2.376 2.970 V
2.0RDDelay Resistance 0.5 1.0 M
VDET
Topt
Detector Threshold
Temperature Coefficient 30˚CTopt85˚C±100 ppm/˚C
ICD CDpin Sink Current
VDS=0.1V, VDD=0.7V
VDS=0.5V, VDD=1.5V
2.0
200.0
30
800.0
µA
IOUT Output Current
Nch
VDS=0.05V, VDD=0.7V
VDS=0.5V, VDD=1.5V
0.01
1.0
mA
mA3.0Pch VDS=2.1V, VDD=8.0V 1.5
(Note 1) Minimum Operating Voltage means the value of input voltage when output voltage maintains 0.1V or less, provided that in the case of Nch
Open Drain Type Products, the pull-up resistance is set at 470k, and the pull-up voltage is set at 5.0V.
RN5VD
10
Part Number.
RN5VD09A/C
RN5VD10A/C
RN5VD11A/C
RN5VD12A/C
RN5VD13A/C
RN5VD14A/C
RN5VD15A/C
RN5VD16A/C
RN5VD17A/C
RN5VD18A/C
RN5VD19A/C
RN5VD20A/C
RN5VD21A/C
RN5VD22A/C
RN5VD23A/C
RN5VD24A/C
RN5VD25A/C
RN5VD26A/C
RN5VD27A/C
RN5VD28A/C
RN5VD29A/C
RN5VD30A/C
RN5VD31A/C
RN5VD32A/C
RN5VD33A/C
RN5VD34A/C
RN5VD35A/C
RN5VD36A/C
RN5VD37A/C
RN5VD38A/C
RN5VD39A/C
Detector Threshold
VDET (V)
Min
.
Typ. Max.
0.878 0.900 0.922 0.027 0.045 0.063
0.975 1.000 1.025 0.030 0.050 0.070
1.073 1.100 1.127 0.033 0.055 0.077
1.170 1.200 1.230 0.036 0.060 0.084
1.268 1.300 1.332 0.039 0.065 0.091
1.365 1.400 1.435 0.042 0.070 0.098
1.463 1.500 1.537 0.045 0.075 0.105
1.560 1.600 1.640 0.048 0.080 0.112
1.658 1.700 1.742 0.051 0.085 0.119
1.755 1.800 1.845 0.054 0.090 0.126
1.853 1.900 1.947 0.057 0.095 0.133
1.950 2.000 2.050 0.060 0.100 0.140
2.048 2.100 2.152 0.063 0.105 0.147
2.145 2.200 2.255 0.066 0.110 0.154
2.243 2.300 2.357 0.069 0.115 0.161
2.340 2.400 2.460 0.072 0.120 0.168
2.438 2.500 2.562 0.075 0.125 0.175
2.535 2.600 2.665 0.078 0.130 0.182
2.633 2.700 2.767 0.081 0.135 0.189
2.730 2.800 2.870 0.084 0.140 0.196
2.828 2.900 2.972 0.087 0.145 0.203
2.925 3.000 3.075 0.090 0.150 0.210
3.023 3.100 3.177 0.093 0.155 0.217
3.120 3.200 3.280 0.096 0.160 0.224
3.218 3.300 3.382 0.099 0.165 0.231
3.315 3.400 3.485 0.102 0.170 0.238
3.413 3.500 3.587 0.105 0.175 0.245
3.510 3.600 3.690 0.108 0.180 0.252
3.608 3.700 3.792 0.111 0.185 0.259
3.705 3.800 3.895 0.114 0.190 0.266
3.803 3.900 3.997 0.117 0.195 0.273
V
DD
=
(V
DET
)
0.10V
V
DD
=
(V
DET
)
0.13V
1.5
1.8
3.7
4.5
2.0 5.0
2.5 5.0
3.0 6.0
3.5 7.0
4.0 8.0
4.5 9.0
V
DD
=
(
V
DET
)
+
2.0V
0.9 2.7
1.0 3.0
1.1 3.3
1.2 3.6
Nch
V
DS
=
0.05V
V
DD
=
0.7V
0.01 0.05
Nch
V
DS
=
0.5V
V
DD
=
0.85V 0.05 0.50
V
DD
=
1.0V 0.2 1.0
V
DD
=
1.5V 1.0 2.0
Min
.
Typ. Max.
condi-
tions
Typ. Max.
condi-
tions
Typ. Max.
condi-
tions
Min. Typ.
conditions
Min. Typ.
VHYS (V) Iss1(µA) Iss2(µA) IOUT1(mA) IOUT2(mA)
Hysteresis
Supply Current 1 Supply Current 2 Output Current 1 Output Current 2
ELECTRICAL CHARACTERISTICS BY DETECTOR THRESHOLD
RN5VD09A/C to RN5VD39A/C
(Note) Refer to the previously defined Minimum Operating Voltage.
Condition 1 : Topt=25˚C
Condition 2 : 30˚CTopt85˚C
RN5VD
11
P
ch
V
DS
=
2.1V
V
DD
=
4.5V
1.0 2.0
(Note1)
Condition1
0.55
Condition2
0.65
(Note1)
Condition1
0.70
Condition2
0.80
V
DD
=
(
V
DET
)
×
1.1V
V
DS
=
0.1V
V
DD
=
0.7V
2.0 30
V
DS
=
0.5V
V
DD
=
0.85V
V
DD
=
1.0V
V
DD
=
1.5V
10
50
200
100
200
800
0.5 1.0 2.0
Output Current 3
IOUT3 (mA)
condi-
tions
Min. Typ. Typ. Max.
condi-
tions
V
DD
×
0.3
V
DD
×
0.35
V
DD
×
0.4
V
DD
×
0.5
V
DD
×
0.5
V
DD
×
0.5
V
DD
×
0.7
V
DD
×
0.65
V
DD
×
0.6
Min. Typ. Max.
condi-
tions
Min. Typ.
conditions
Min. Typ. Min. Typ. Max.
VDDL (V) VTCD (V) ICD1(µA) ICD2(µA) RD(M)
Minimum Oper-
ating Voltage C
D
Pin Threshold Voltage
C
D
Pin Output
Current 1 C
D
Pin Output Current 2 Delay
Resistance
30˚C
Topt
85˚C
±100
condi-
tions
Typ.
V
DET
Topt (ppm/˚C)
Detector
Threshold
Tempco.
Topt=25˚C
RN5VD
12
Part Number.
RN5VD40A/C
RN5VD41A/C
RN5VD42A/C
RN5VD43A/C
RN5VD44A/C
RN5VD45A/C
RN5VD46A/C
RN5VD47A/C
RN5VD48A/C
RN5VD49A/C
RN5VD50A/C
RN5VD51A/C
RN5VD52A/C
RN5VD53A/C
RN5VD54A/C
RN5VD55A/C
RN5VD56A/C
RN5VD57A/C
RN5VD58A/C
RN5VD59A/C
RN5VD60A/C
Detector Threshold
VDET (V)
Min. Typ. Max. Min. Typ. Max.
condi-
tions
Typ. Max.
condi-
tions
Typ. Max.
condi-
tions
Min. Typ. Min. Typ.
3.900 4.000 4.100 0.120 0.200 0.280
3.998 4.100 4.202 0.123 0.205 0.287
4.095 4.200 4.305 0.126 0.210 0.294
4.193 4.300 4.407 0.129 0.215 0.301
4.290 4.400 4.510 0.132 0.220 0.308
4.388 4.500 4.612 0.135 0.225 0.315
4.485 4.600 4.715 0.138 0.230 0.322
4.583 4.700 4.817 0.141 0.235 0.329
4.680 4.800 4.920 0.144 0.240 0.336
4.778 4.900 5.022 0.147 0.245 0.343
4.875 5.000 5.125 0.150 0.250 0.350
4.973 5.100 5.227 0.153 0.255 0.357
5.070 5.200 5.330 0.156 0.260 0.364
5.168 5.300 5.432 0.159 0.265 0.371
5.265 5.400 5.535 0.162 0.270 0.378
5.363 5.500 5.637 0.165 0.275 0.385
5.460 5.600 5.740 0.168 0.280 0.392
5.558 5.700 5.842 0.171 0.285 0.399
5.655 5.800 5.945 0.174 0.290 0.406
5.753 5.900 6.047 0.177 0.295 0.413
5.850 6.000 6.150 0.180 0.300 0.420
V
DD
=
(V
DET
)
0.16V
V
DD
=
(V
DET
)
0.20V
5.0 10.0
5.5 11.0
6.0 12.0
6.5 13.0
V
DD
=
(V
DET
)
+
2.0V
1.3 3.9
1.4 4.2
N
ch
V
DS
=
0.05V
V
DD
=
0.7V
0.01 0.05
N
ch
V
DS
=
0.5V
V
DD
=
1.5V 1.0 2.0
conditions
VHYS (V) Iss1(µA) Iss2(µA) IOUT1(mA) IOUT2(mA)
Hysteresis
Supply Current 1 Supply Current 2 Output Current 1
Output Current 2
RN5VD40A/C to RN5VD60A/C
(Note) Refer to the previously defined Minimum Operating Voltage.
Condition 1 : Topt=25˚C
Condition 2 : 30˚CTopt85˚C
RN5VD
13
P
ch
V
DS
=
2.1V
V
DD
=
8.0V
1.5 3.0
(Note1)
Condition1
0.55
Condition2
0.65
(Note1)
Condition1
0.70
Condition2
0.80
V
DD
=
(V
DET
)
×
1.1V
V
DS
=
0.1V
V
DD
=
0.7V
2.0 30
V
DS
=
0.5V
V
DD
=
1.5V
200 800 0.5 1.0 2.0
Output Current 3
IOUT3(mA)
condi-
tions
Min. Typ.
Typ.
Max.
condi-
tions
V
DD
×
0.4
V
DD
×
0.5
V
DD
×
0.6V
Min. Typ. Max.
condi-
tions
Min. Typ.
conditions
Min. Typ.
condi-
tions
Typ. Max.
VDDL (V) VTCD (V) ICD1(µA) IOUT1(mA) IOUT2(mA)
Minimum Oper-
ating Voltage C
D
Pin Threshold Voltage
C
D
Pin Output
Current 1 C
D
Pin Output Current 2 Delay
Resistance
30˚C
Topt
85˚C
±100
condi-
tions
Typ.
Detector
Threshold
Tempco.
Topt=25˚C
V
DET
Topt (ppm/˚C)
RN5VD
14
A
B
1 2 3 4 5
Detector Threshold Hysteresis
Released Voltage +VDET
Detected Voltage VDET
Minimum Operaing Voltage
Delay Time
GND
GND
Supply Voltage
(VDD)
Output Voltage
(OUT)
OPERATION
Fig. 2 Operation Diagram
Fig. 1 Block Diagram
Step 1. Output voltage is equal to pull-up voltage.
Step 2. When input voltage (VDD) reaches the state of VrefVDD · (Rb+Rc) / (Ra+Rb+Rc) at point A (Detected Voltage VDET) , the output of comparator is
reversed, so that output voltage becomes GND. Discharging is performed from CDpin connected to an external capacitor. No delay time is generated.
Step 3. Output voltage becomes indefinite when power source voltage(VDD) is smaller than minimum operating voltage. When the output is pulled up, VDD is
output.
Step 4. Output voltage becomes equal to GND.
Step 5. When input voltage (VDD) reaches the state of Vref VDD · Rb/(Ra+Rb) at Point B (Released Voltage +VDET) , the output of comparator is reversed,
and the external capacitor is charged through CDpin, so that output voltage becomes equal to pulled-up voltage after a delay time tD(=0.69×106×CD) .
Step Step 1 Step 2 Step 3 Step 4 Step 5
Comparator () Pin
Input Voltage
III II II I
Comparator Output
LH
Indefinite
HL
Tr. 1, 2 OFF ON
Indefinite
ON OFF
Output Tr.
Nch OFF ON
Indefinite
ON OFF
Pch ON OFF
Indefinite
OFF ON
I. Rb + Rc
Ra + Rb + Rc · VDD
II. Rb
Ra + Rb · VDD
GND
OUT
CD
VDD
Ra
Current Source
Output Capacitor
RD
Rb
Rc
Tr.1
Tr.2
Vref
+
Comparator
Schmitt Trigger
Nch
Pch
RN5VD
15
Output Delay Operation
When the supply voltage crosses the released voltage (+VDET) from a low value to a value higher than
the released voltage (+VDET) , the CDpin voltage starts to increase (starts to charge the external capaci-
tor).
The output voltage is maintained at
L
level until the CDpin voltage reaches to VTCD (CDpin threshold
voltage) after that the output voltage is reversed to
H
.
The time period from beginning of charging capacitor to output voltage reversing represents the out-
put delay (tD) .
Supply Voltage
(VDD)
CD pin Voltage
Output Voltage
(OUT)
Output Delay Time (tD)
GND
CD pin Threshold Voltage (VTCD)
Released Voltage (+VDET)
GND
Delay time (tD) can be set accordance with the capacitance CDof external capacitor as below
tD=0.69×106×CD(s)
Output Delay Time
RN5VD
16
TEST CIRCUITS
Fig. 3 Supply Current test Circuit Fig. 4 Detector Threshold Test Circuit
Fig. 5 Nch Driver Output Current Test Circuit Fig. 6 Pch Driver Output Current Test Circuit
Fig. 7 CDpin Threshold Voltage Test Circuit Fig. 8 CDpin Sink Current Test Circuit
Fig. 9 Output Delay Time Test Circuit
VIN
ISS
VDD
GND
RN5VD
SERIES
VIN
VDD
+5V or VDD
GND
OUT
470k
RN5VD
SERIES
VIN
VDD
GND
OUT
RN5VD
SERIES
VDS
IOUT
VIN
VDD
GND
OUT
RN5VD××C
SERIES
VDD+VDS
IOUT
VIN
VDD
CD
VDS
+5V or VDD
GND
OUT
OUT
470k
RN5VD
SERIES
VIN
VDD
CD
VDS GND
RN5VD
SERIES
ICD
CD
CD
VDD
+5V
GND
OUT
470k
RN5VD
SERIES
VIN
*) at Fig.4,7,9. CMOS Output Type does not
need a pull-up resistor.
RN5VD
17
TYPICAL CHARACTERISTICS
1) Supply Current vs. Input Voltage
0246810
0
0.5
1.0
1.5
2.0
2.5
3.0
Supply Current Iss(µA)
RN5VD09x
Input Voltage VIN(V)
Topt=80˚C
25˚C
30˚C
0
1
2
3
4
5
0246810
Supply Current Iss(µA)
Input Voltage VIN(V)
RN5VD27x
Topt=80˚C
25˚C
30˚C
0
3
4
5
6
7
8
Supply Current Iss(µA)
0246810
Input Voltage VIN(V)
RN5VD45x
Topt=80˚C
25˚C
30˚C
2
1
2) Detector Threshold vs. Temperature
40 200 20406080
0.86
0.88
0.90
0.92
0.94
0.96
0.98
Detector Threshold VDET(V)
RN5VD09x
Temperature Topt(˚C)
+VDET
VDET
2.60
2.65
2.70
2.75
2.80
2.85
2.90
Detector Threshold VDET(V)
RN5VD27x
40 200 20406080
Temperature Topt(˚C)
VDET
+VDET
RN5VD
18
3) Output Voltage vs. Input Voltage
0 0.2 0.4 0.6 0.8 1
0
0.2
0.4
0.6
0.8
1.0
Output Voltage VOUT(V)
RN5VD09A
Input Voltage VIN(V)
25˚C
30˚C
Topt=80˚C
VDD Pull-up
470k
0 0.2 0.4 0.6 0.8 1.0
0
1
2
3
4
5
6
Output Voltage VOUT(V)
RN5VD09A
Input Voltage VIN(V)
Topt=80˚C
25˚C
30˚C
5V Pull-up
470k
0 0.5 1.0 1.5 2.0 2.5 3.0
0
0.5
1.0
1.5
2.0
2.5
3.0
Output Voltage VOUT(V)
RN5VD27A
Input Voltage VIN(V)
Topt= 30˚C
25˚C
80˚C
VDD Pull-up
470k
0 0.5 1.0 1.5 2.0 2.5 3.0
0
1
2
3
4
5
6
Output Voltage VOUT(V)
RN5VD27A
Input Voltage VIN(V)
25˚C
Topt=30˚C
80˚C
5V Pull-up
470k
40 200 20406080
4.4
4.5
4.6
4.7
4.8
4.9
Detector Threshold VDET(V)
RN5VD45x
Temperature Topt(˚C)
+VDET
VDET
RN5VD
19
012345
0
1
2
3
4
5
Output Voltage VOUT(V)
RN5VD45A
Input Voltage VIN(V)
Topt=30˚C
25˚C
80˚C
VDD Pull-up
470k
0
1
2
3
4
6
5
Output Voltage VOUT(V)
RN5VD45A
012345
Input Voltage VIN(V)
Topt=30˚C
25˚C
80˚C
5V Pull-up
470k
4) Nch Driver Output Current vs. VDS
0 0.2 0.4 0.6 0.8 1.0
0
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
Output Currert IOUT(mA)
RN5VD09x
VDS(V)
VDD=0.85V
0.7V
0
5
10
15
20
25
30
35
40
Output Currert IOUT(mA)
01234
RN5VD45x
VDS(V)
1.5V
2.0V
2.5V
3.0V
3.5V
VDD=4.0V
RN5VD27x
0 0.5 1.0 1.5 2.0 2.5
VDS(V)
0
2
4
6
8
10
12
14
16
Output Currert IOUT(mA)
VDD=2.5V
2.0V
1.5V
RN5VD
20
5) Nch Driver Output Current vs. Input Voltage
0 0.2 0.4 0.6 0.8 1.0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Output Current IOUT(mA)
RN5VD09x
Input Voltage VIN(V)
VDS=0.5V
Topt = 80˚C
25˚C
30˚C
Output Current IOUT(mA)
RN5VD45x VDS=0.5V
012345
0
2
4
6
8
10
12
14
16
18
Input Voltage VIN(V)
Topt = 30˚C25˚C
80˚C
Output Current IOUT(mA)
Input Voltage VIN(V)
0 0.5 1.0 1.5 2.0 2.5 3.0
0
2
4
6
8
10
12 RN5VD27x VDS=0.5V
Topt = 30˚C25˚C
80˚C
6) Pch Driver Output Current vs. Input Voltage
0246810
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Output Current IOUT(mA)
RN5VD09C
Input Voltage VIN(V)
0.5V
1.0V
1.5V
VDS = 2.1V
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Output Current IOUT(mA)
0246810
RN5VD27C
Input Voltage VIN(V)
VDS = 2.1V
1.5V
1.0V
0.5V
RN5VD
21
0246810
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Output Current IOUT(mA)
RN5VD45C
Input Voltage VIN(V)
0.5V
1.5V
VDS =2.1V
1.0V
7) CDpin Threshold Voltage vs. Temperature
40 200 20406080
0.2
0.3
0.4
0.5
0.6
0.7
0.8
CD pin Threshold Voltage VTCD(V)
RN5VD09x
Temperature Topt(˚C)
VDD=0.99V
40 200 20406080
1.2
1.3
1.4
1.5
1.6
1.7
1.8
CD pin Threshold Voltage VTCD(V)
RN5VD27x
Temperature Topt(˚C)
VDD=2.97V
40 200 20406080
2.2
2.3
2.4
2.5
2.6
2.7
2.8
CD pin Threshold Voltage VTCD(V)
RN5VD45x
Temperature Topt(˚C)
VDD=4.95V
RN5VD
22
9) CD pin Sink Current vs. CD pin Voltage
0 0.2 0.4 0.6 0.8 1.0
0
0.02
0.04
0.06
0.08
0.10
0.12
CD pin Sink Current ICD(mA)
RN5VD09x
CD pin Voltage VCD(V)
0.7V
VDD = 0.85V
0 0.5 1.0 1.5 2.0 2.5
0
1.5
1.0
0.5
2.0
2.5
3.0
3.5
4.0
CD pin Sink Current ICD(mA)
RN5VD27x
CD pin Voltage VDS(V)
2.0V
1.5V
VDD = 2.5V
8) CD pin Sink Current vs. Input Voltage
0 0.2 0.4 0.6 0.8 1.0
0
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
CD pin Sink Current ICD(mA)
RN5VD09x
Input Voltage VIN(V)
25˚C
Topt = 80˚C
30˚C
VDS=0.5V
012345
0
1
2
3
4
5
CD pin Sink Current ICD(mA)
RN5VD45x
Input Voltage VIN(V)
Topt =30˚C25˚C
80˚C
VDS=0.5V
0 0.5 1.0 1.5 2.0 2.5 3.0
0
0.5
1.0
1.5
2.0
2.5
3.0
CD pin Sink Current ICD(mA)
RN5VD27x
Input Voltage VIN(V)
Topt =30˚C
25˚C
80˚C
VDS=0.5V
RN5VD
23
01234
0
2
4
6
8
10
CD pin Sink Current ICD(mA)
RN5VD45x
CD pin Voltage VDS(V)
VDD = 4.0V
3.5V
3.0V
2.5V
2.0V
1.5V
10) Output delay Time vs. External Capacitance
11) Delay Resistance vs. Temperature
0.0001 0.001 0.01 0.1 1
0.01
0.1
1
10
100
1000
Output Delay Time tP(ms)
RN5VD09A
External Capacitance CD(µF)
tD
tPHL
0.0001 0.001 0.01 0.1 1
0.01
0.1
1
10
100
1000
Output Delay Time tP(ms)
RN5VD27A
External Capacitance CD(µF)
tD
tPHL
0.0001 0.001 0.01 0.1 1
0.01
0.1
1
10
100
1000
Output Delay Time tP(ms)
RN5VD45A
External Capacitance CD(µF)
tD
tPHL
40 20 0 20406080
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Delay Resistance RD(M)
RN5VDxxx
Temperature Topt(˚C)
RN5VD
24
TYPICAL APPLICATIONS
RN5VDxxA CPU Reset Circuit (Nch Open Drain Output)
RN5VDxxC CPU Reset Circuit (CMOS Output)
Memory Back-up Circuit
(1) Input Voltage to RN5VDxxA is
the same as the input voltage to CPU.
(2) Input Voltage to RN5VDxxA is
different from the input voltage to CPU.
R
VDD
GND
OUT
CD
CD
RN5VDxxA
SERIES
VDD
VDD
CPU
RESET
GND
VDD
VDD1 VDD2
GND
OUT
R
RN5VDxxA
SERIES
VDD
CPU
RESET
GND
CD
CD
VDD
VDD
OUT
GND
RN5VDxxC
SERIES
VDD
CPU
RESET
GND
CD
CD
OUT
D2
D1
A
B
G
Y1
Y2
Y3
Y4
VCC
RAM1
GND CS
VCC
RAM2
GND CS
VCC
RAM3
GND CS
VCC
RAM4
GND CS
GND
VDD
VDD
GND
VCC
RN5VDxxC
SERIES
CD
CD
RN5VD
25
1. When RN5VDxxC (CMOS Output) is used in Fig.10,this IC may oscillate by cross conduction current at the detec-
tion when impedance is connected between Power Source VDD and RN5VD VDD Pin.When RN5VDxxA (Nch Open
Drain Output) is used in Fig.10, and R becomes excessively large, Detector Threshold may be varied because of the
voltage drop of the supply current in the IC itself.
2. The connection as shown in Fig. 11 may cause the oscillation in both RN5VDxxC (CMOS Output) and RN5VDxxA
(Nch Open Drain Output)
APPLICATION HINTS
SERIES
VDD
VDD
OUTCD
GND
RN5VD
Fig.10
SERIES
RN5VD
VDD
VDD
GND
OUT
R2
R1
CD
Fig.11
Manual Reset Circuit
VDD
R
VDD
VDD
CD
GND
OUT
CD
VDD
RN5VDxxC
SERIES
VDD
CD
GND
OUT
CD
RN5VDxxA
SERIES