RN5VD SERIES
LOW VOLTAGE DETECTOR WITH OUTPUT DELAY
NO. EA-027-160309
1
OUTLINE
The RN5VD 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, resistor net for detector threshold setting,
an output driver, a hysteresis circuit, and an output delay 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 for these ICs is SOT-23-5 package, high density mounting of the ICs on board is possible.
FEATURES
•Built-in Output Delay Circuit ............................................... Typ. 100ms with an external capacitor : 0.15µF
•Supply Current ................................................................... Typ. 1.0µA (RN5VD15x, VDD=3.5V)
•Operating Voltage Range ................................................... 0.7 to 10.0V (Topt=25°C)
•Detector Threshold Range ................................................. 0.9V to 6.0V (0.1V steps)
•Detector Threshold Accuracy ............................................. ±2.5%
•Temperature-Drift Coefficient of Detector Threshold ............ Typ. ±100ppm/°C
•Output Types ...................................................................... Nch Open Drain and CMOS
•Package ............................................................................. SOT-23-5
APPLICATIONS
•CPU and Logic Circuit Reset
•Battery Checker
•Window Comparator
•Wave Shaping Circuit
•Battery Back-up Circuit
•Power Failure Detector
RN5VD
2
BLOCK DIAGRAMS
RN5VDxxA RN5VDxxC
GND
V
DD
-
+
Vref
OUT
R
D
C
D
GND
V
DD
-
+
Vref
OUT
R
D
C
D
SELECTION GUIDE
The detector threshold, and the output type for the ICs can be selected at the users’ request.
Product Name Package Quantity per Reel Pb Free Halogen Free
RN5VDxx∗A-TR-FE SOT-23-5 3,000 pcs Yes Yes
xx : The detector threshold can be designated in the range from 0.9V(09) to 6.0V(60) in 0.1V steps.
∗ : Designation of Output Type
(A) Nch Open Drain
(C) CMOS
RN5VD
3
PIN CONFIGURATION
●SOT-23-5
1
4
5
23
(mark side)
PIN DESCRIPTION
Pin No. Symbol Pin Description
1 OUT Output Pin（"L" at Detection）
2 VDD Input Pin
3 GND Ground Pin
4 NC No Connection
5 CD Pin for external capacitor ( for setting output delay)
ABSOLUTE MAXIMUM RATINGS
Symbol Item Ratings Unit
VDD Supply Voltage 12 V
CMOS VSS −0.3 to VDD+0.3
VOUT Output Voltage
Nch VSS −0.3～12
V
IOUT Output Current 70 mA
PD Power Dissipation (SOT-23-5)* 420 mW
Topt Operating Temperature Range −40 to +85 °C
Tstg Storage Temperature Range −55 to +125 °C
Tsolder Lead Temperature (Soldering) 260°C 10s
* ) For Power Dissipation, please refer to PACKAGE INFORMATION.
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the
permanent damages and may degrade the life time and safety for both device and system using the device
in the field. The functional operation at or over these absolute maximum ratings is not assured.
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˚C≤Topt≤85˚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 MΩ
Detector Threshold
Temperature Coefficient –30˚C≤Topt≤85˚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 470kΩ, 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˚C≤Topt≤85˚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 MΩ
∆–VDET
∆Topt
Detector Threshold
Temperature Coefficient –30˚C≤Topt≤85˚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 470kΩ, 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˚C≤Topt≤85˚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 MΩ
∆–VDET
∆Topt
Detector Threshold
Temperature Coefficient –30˚C≤Topt≤85˚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 470kΩ, 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˚C≤Topt≤85˚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 MΩ
∆–VDET
∆Topt
Detector Threshold
Temperature Coefficient –30˚C≤Topt≤85˚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 470kΩ, 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˚C≤Topt≤85˚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 MΩ
∆–VDET
∆Topt
Detector Threshold
Temperature Coefficient –30˚C≤Topt≤85˚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 470kΩ, 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˚C≤Topt≤85˚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 MΩ
∆–VDET
∆Topt
Detector Threshold
Temperature Coefficient –30˚C≤Topt≤85˚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 470kΩ, 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˚C≤Topt≤85˚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(MΩ)
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˚C≤Topt≤85˚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
AB
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 Vref≥VDD · (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.
Step3. 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=0.69×10 6×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
470kΩ
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
470kΩ
RN5VD
SERIES
VIN VDD
CD
VDS GND
RN5VD
SERIES
ICD
tPHL tD
+VDET+2.0V
100%
50%
GND
0.7V
GND
Input Voltage
Output Voltage
CD
CD
VDD
+5V
GND
OUT
470kΩ
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
0
1
2
3
4
5
0246810
Supply Current Iss(µA)
Input Voltage VIN(V)
RN5VD27x
Topt=80˚C
25˚C
–30˚C
2) Detector Threshold vs. Temperature
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
470kΩ
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
470kΩ
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
470kΩ
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
470kΩ
–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
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
470kΩ
4) Nch Driver Output Current vs. VDS
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
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
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)
RN5VD27A
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(MΩ)
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
•Manual Reset Circuit
VDD R
VDD VDD
CD
GND
OUT
CD
VDD
RN5VDxxC
SERIES
VDD
CD
GND
OUT
CD
RN5VDxxA
SERIES
TECHNICAL NOTES
When connecting resistors to the device’s input pin
When connecting a resistor (R1) to an input of this device, the input voltage decreases by [Device’s
Consumption Current] x [Resistance Value] only. And, the cross conduction current*1, which occurs when
changing from the detecting state to the release state, is decreased the input voltage by [Cross Conduction
Current] x [Resistance Value] only. And then, this device will enter the re-detecting state if the input voltage
reduction is larger than the difference between the detector voltage and the released voltage.
When the input resistance value is large and the VDD is gone up at mildly in the vicinity of the released voltage,
repeating the above operation may result in the occurrence of output.
As shown in Figure A/B, set R1 to become 100 kΩ or less as a guide, and connect CIN of 0.1 μF and more to
between the input pin and GND. Besides, make evaluations including temperature properties under the actual
usage condition, with using the evaluation board like this way. As a result, make sure that the cross conduction
current has no problem.
VDD
R1
GND
OUT pin
CIN
*2
Figure A
Voltage
Detector
V
DD
R1
GND
OUT pin
C
IN
*2
Figure B
Voltage
Detector
R2
*1 In the CMOS output type, a charging current for OUT pin is included.
*2 Note the bias dependence of capacitors.
http://www.e-devices.ricoh.co.jp/en/
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