RICOH RN5RZ50BA-TR

VOLTAGE DETECTOR
WITH OUTPUT DELAY
RN5VD SERIES
NO. EA-027-0301
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.
FEATURES
• 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)
APPLICATIONS
• CPU & Logic Circuit Reset
• Battery Checker
• Window Comparator
• Wave Shaping Circuit
• Battery Back-Up Circuit
• Power Failure Detector
1
RN5VD
BLOCK DIAGRAMS
• Nch Open Drain Output (RN5VDxxA)
• CMOS Output (RN5VDxxC)
VDD 2
VDD
2
1 OUT
RD
RD
+
+
–
–
Vref
1 OUT
Vref
3 GND
3 GND
5
5
CD
CD
SELECTION GUIDE
The detector threshold, the output type, the packing type, and the taping type of RN5VD Series can be designating at the user's request by specifying the part number as follows :
}
}
RN5VDxxxx– xx ← Part Number
↑ ↑↑ ↑
a bc d
Code
Contents
a
Setting Detector Threshold (–VDET) :
Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V is possible.
b
Designation of Output Type
A: Nch Open Drain
C: CMOS
c
Designation of Packing Type
A: Taping
C: Antistatic bag for samples
d
Designation of Taping Type:
Ex. SOT-23-5: TR, TL
(refer to Taping Specification)
“TR” is prescribed as a standard.
For example, the Product with Detector Threshold 3.5V, Output Type Nch Open Drain and Taping Type TR,
is designated by Part Number RN5VD35AA-TR.
2
RN5VD
PIN CONFIGURATION
• SOT-23-5
5
4
(mark side)
1
2
3
PIN DESCRIPTION
Pin No.
Symbol
Description
1
OUT
Output Pin
2
VDD
Input and power source for device itself
3
GND
Ground Pin
4
NC
No Connection
5
CD
Pin for external capacitor (for setting output delay)
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
VDD
Supply Voltage
VOUT
Output Voltage
IOUT
PD
Rating
Unit
12
V
CNOS
VSS–0.3 to VDD+0.3
Nch
VSS–0.3 to 12
V
Output Current
70
mA
Power Dissipation
150
mW
Topt
Operating Temperature Range
–40 to +85
˚C
Tstg
Storage Temperature Range
–55 to +125
˚C
Lead Temperature (Soldering)
260˚C, 10s
Tsolder
ABSOLUTE MAXIMUM RATINGS
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.
3
RN5VD
ELECTRICAL CHARACTERISTICS
• RN5VD09A/C
Topt=25˚C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit.
–VDET
Detector Threshold
0.878
0.900
0.922
V
VHYS
Detector Threshold Hysteresis
0.027
0.045
0.063
V
VDD=0.8V
1.5
3.7
VDD=2.9V
0.9
2.7
ISS
VDDH
VDDL
µA
Supply Current
Maximum Operating Voltage
10
Minimum Operating Voltage
Topt=25˚C
0.55
0.70
–30˚C≤Topt≤85˚C
0.65
0.80
V
V
(Note 1)
VDS=0.05V, VDD=0.7V
0.01
0.05
VDS=0.5V, VDD=0.85V
0.05
0.50
VDS=–2.1V, VDD=4.5V
1.0
2.0
VDD=0.99V
0.297
0.495
VDS=0.1V, VDD=0.7V
2.0
30
VDS=0.5V, VDD=0.85V
10.0
100.0
0.5
1.0
Nch
IOUT
Output Current
Pch
VTCD
ICD
RD
∆–VDET
∆Topt
CD pin Threshold Voltage
mA
mA
0.693
V
µA
CD pin Sink Current
Delay Resistance
Detector Threshold
Temperature Coefficient
–30˚C≤Topt≤85˚C
±100
2.0
MΩ
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.
4
RN5VD
• RN5VD18A/C
Topt=25˚C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit.
–VDET
Detector Threshold
1.755
1.800
1.845
V
VHYS
Detector Threshold Hysteresis
0.054
0.090
0.126
V
VDD=1.7V
2.5
5.0
VDD=3.8V
1.0
3.0
ISS
VDDH
VDDL
µA
Supply Current
Maximum Operating Voltage
Topt=25˚C
–30˚C≤Topt≤85˚C
Minimum Operating Voltage
(Note 1)
0.55
0.65
VDS=0.05V, VDD=0.7V
0.01
0.05
VDS=0.5V, VDD=1.5V
1.0
2.0
VDS=–2.1V, VDD=4.5V
1.0
2.0
VDD=1.98V
0.693
0.990
VDS=0.1V, VDD=0.7V
2.0
30
VDS=0.5V, VDD=1.5V
200.0
800.0
0.5
1.0
10
V
0.70
0.80
V
Nch
IOUT
Output Current
Pch
VTCD
ICD
RD
∆–VDET
∆Topt
CD pin Threshold Voltage
mA
mA
1.287
V
µA
CD pin Sink Current
Delay Resistance
Detector Threshold
Temperature Coefficient
–30˚C≤Topt≤85˚C
±100
2.0
MΩ
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.
5
RN5VD
• RN5VD27A/C
Topt=25˚C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit.
–VDET
Detector Threshold
2.633
2.700
2.767
V
VHYS
Detector Threshold Hysteresis
0.081
0.135
0.189
V
VDD=2.6V
3.5
7.0
VDD=4.7V
1.1
3.3
ISS
VDDH
VDDL
µA
Supply Current
Maximum Operating Voltage
Topt=25˚C
–30˚C≤Topt≤85˚C
Minimum Operating Voltage
(Note 1)
0.55
0.65
VDS=0.05V, VDD=0.7V
0.01
0.05
VDS=0.5V, VDD=1.5V
1.0
2.0
VDS=–2.1V, VDD=4.5V
1.0
2.0
VDD=2.97V
1.188
1.485
VDS=0.1V, VDD=0.7V
2.0
30
VDS=0.5V, VDD=1.5V
200.0
800.0
0.5
1.0
10
V
0.70
0.80
V
Nch
IOUT
Output Current
Pch
VTCD
ICD
RD
∆–VDET
∆Topt
CD pin Threshold Voltage
mA
mA
1.782
V
µA
CD pin Sink Current
Delay Resistance
Detector Threshold
Temperature Coefficient
–30˚C≤Topt≤85˚C
±100
2.0
MΩ
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.
6
RN5VD
• RN5VD36A/C
Topt=25˚C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit.
–VDET
Detector Threshold
3.510
3.600
3.690
V
VHYS
Detector Threshold Hysteresis
0.108
0.180
0.252
V
VDD=3.47V
4.5
9.0
VDD=5.6V
1.2
3.6
ISS
VDDH
VDDL
µA
Supply Current
Maximum Operating Voltage
0.55
0.65
Topt=25˚C
–30˚C≤Topt≤85˚C
Minimum Operating Voltage
(Note 1)
VDS=0.05V, VDD=0.7V
0.01
0.05
VDS=0.5V, VDD=1.5V
1.0
2.0
VDS=–2.1V, VDD=4.5V
1.0
2.0
VDD=3.96V
1.584
1.980
VDS=0.1V, VDD=0.7V
2.0
30
VDS=0.5V, VDD=1.5V
200.0
800.0
0.5
1.0
10
V
0.70
0.80
V
Nch
IOUT
Output Current
Pch
VTCD
ICD
RD
∆–VDET
∆Topt
CD pin Threshold Voltage
mA
mA
2.376
V
µA
CD pin Sink Current
Delay Resistance
Detector Threshold
Temperature Coefficient
–30˚C≤Topt≤85˚C
±100
2.0
MΩ
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.
7
RN5VD
• RN5VD45A/C
Topt=25˚C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit.
–VDET
Detector Threshold
4.388
4.500
4.612
V
VHYS
Detector Threshold Hysteresis
0.135
0.225
0.315
V
VDD=4.34V
5.5
11.0
VDD=6.5V
1.3
3.9
ISS
VDDH
VDDL
µA
Supply Current
Maximum Operating Voltage
Topt=25˚C
–30˚C≤Topt≤85˚C
Minimum Operating Voltage
(Note 1)
0.55
0.65
VDS=0.05V, VDD=0.7V
0.01
0.05
VDS=0.5V, VDD=1.5V
1.0
2.0
VDS=–2.1V, VDD=8.0V
1.5
3.0
VDD=4.95V
1.980
2.475
VDS=0.1V, VDD=0.7V
2.0
30
VDS=0.5V, VDD=1.5V
200.0
800.0
0.5
1.0
10
V
0.70
0.80
V
Nch
IOUT
Output Current
Pch
VTCD
ICD
RD
∆–VDET
∆Topt
CD pin Threshold Voltage
mA
mA
2.970
V
µA
CD pin Sink Current
Delay Resistance
Detector Threshold
Temperature Coefficient
–30˚C≤Topt≤85˚C
±100
2.0
MΩ
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.
8
RN5VD
• RN5VD54A/C
Topt=25˚C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit.
–VDET
Detector Threshold
5.265
5.400
5.535
V
VHYS
Detector Threshold Hysteresis
0.162
0.270
0.378
V
VDD=5.2V
6.0
12.0
VDD=7.4V
1.4
4.2
ISS
VDDH
VDDL
µA
Supply Current
Maximum Operating Voltage
Topt=25˚C
–30˚C≤Topt≤85˚C
Minimum Operating Voltage
(Note 1)
0.55
0.65
VDS=0.05V, VDD=0.7V
0.01
0.05
VDS=0.5V, VDD=1.5V
1.0
2.0
1.5
3.0
VDD=5.94V
2.376
2.970
VDS=0.1V, VDD=0.7V
2.0
30
VDS=0.5V, VDD=1.5V
200.0
800.0
0.5
1.0
10
V
0.70
0.80
V
Nch
IOUT
Output Current
Pch
VTCD
ICD
RD
∆–VDET
∆Topt
CD pin Threshold Voltage
mA
VDS=–2.1V, VDD=8.0V
mA
3.564
V
µA
CD pin Sink Current
Delay Resistance
Detector Threshold
Temperature Coefficient
–30˚C≤Topt≤85˚C
±100
2.0
MΩ
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.
9
RN5VD
ELECTRICAL CHARACTERISTICS BY DETECTOR THRESHOLD
• RN5VD09A/C to RN5VD39A/C
Part Number.
Detector Threshold
Hysteresis
–VDET (V)
VHYS (V)
Supply Current 1 Supply Current 2 Output Current 1
Iss1 (µA)
Iss2 (µA)
IOUT1 (mA)
Min. Typ. Max. Min. Typ. Max. condi- Typ. Max. condi- Typ. Max. condi- Min. Typ.
tions
tions
tions
RN5VD09A/C 0.878 0.900 0.922 0.027 0.045 0.063
RN5VD10A/C 0.975 1.000 1.025 0.030 0.050 0.070
RN5VD11A/C 1.073 1.100 1.127 0.033 0.055 0.077
RN5VD12A/C 1.170 1.200 1.230 0.036 0.060 0.084
RN5VD13A/C 1.268 1.300 1.332 0.039 0.065 0.091
RN5VD14A/C 1.365 1.400 1.435 0.042 0.070 0.098
1.5
3.7
1.8
4.5
2.0
5.0
0.9
IOUT2 (mA)
conditions
2.7
Min. Typ.
VDD=
0.05 0.50
0.85V
VDD=
0.2
1.0V
1.0
RN5VD15A/C 1.463 1.500 1.537 0.045 0.075 0.105
Output Current 2
1.0
3.0
RN5VD16A/C 1.560 1.600 1.640 0.048 0.080 0.112
RN5VD17A/C 1.658 1.700 1.742 0.051 0.085 0.119
2.5
5.0
3.0
6.0
RN5VD18A/C 1.755 1.800 1.845 0.054 0.090 0.126
VDD=
(–VDET)
RN5VD20A/C 1.950 2.000 2.050 0.060 0.100 0.140 –0.10V
RN5VD21A/C 2.048 2.100 2.152 0.063 0.105 0.147
RN5VD19A/C 1.853 1.900 1.947 0.057 0.095 0.133
RN5VD22A/C 2.145 2.200 2.255 0.066 0.110 0.154
RN5VD23A/C 2.243 2.300 2.357 0.069 0.115 0.161
Nch
VDD=
(–VDET)
+2.0V 1.1
RN5VD24A/C 2.340 2.400 2.460 0.072 0.120 0.168
RN5VD25A/C 2.438 2.500 2.562 0.075 0.125 0.175
3.3
VDD=
0.7V
RN5VD26A/C 2.535 2.600 2.665 0.078 0.130 0.182
RN5VD27A/C 2.633 2.700 2.767 0.081 0.135 0.189
3.5
7.0
4.0
8.0
RN5VD28A/C 2.730 2.800 2.870 0.084 0.140 0.196
RN5VD29A/C 2.828 2.900 2.972 0.087 0.145 0.203
RN5VD30A/C 2.925 3.000 3.075 0.090 0.150 0.210
RN5VD31A/C 3.023 3.100 3.177 0.093 0.155 0.217
RN5VD32A/C 3.120 3.200 3.280 0.096 0.160 0.224
RN5VD33A/C 3.218 3.300 3.382 0.099 0.165 0.231
RN5VD34A/C 3.315 3.400 3.485 0.102 0.170 0.238 VDD=
(–VDET)
1.2
RN5VD35A/C 3.413 3.500 3.587 0.105 0.175 0.245 –0.13V
RN5VD36A/C 3.510 3.600 3.690 0.108 0.180 0.252
RN5VD37A/C 3.608 3.700 3.792 0.111 0.185 0.259
RN5VD38A/C 3.705 3.800 3.895 0.114 0.190 0.266
RN5VD39A/C 3.803 3.900 3.997 0.117 0.195 0.273
(Note) Refer to the previously defined “Minimum Operating Voltage”.
Condition 1 : Topt=25˚C
Condition 2 : –30˚C≤Topt≤85˚C
10
VDS=
0.05V 0.01 0.05
4.5
9.0
3.6
Nch
VDS=
0.5V
VDD=
1.5V 1.0
2.0
RN5VD
Topt=25˚C
Output Current 3
IOUT3 (mA)
condi- Min. Typ.
tions
Minimum Oper- CD Pin Threshold Voltage
ating Voltage
VDDL (V)
Typ.
VTCD (V)
CD Pin Output
Current 1
ICD1 (µA)
Max. condi- Min. Typ. Max. condi- Min. Typ.
tions
tions
CD Pin Output Current 2
Delay
Resistance
Detector
Threshold
Tempco.
ICD2 (µA)
RD (MΩ)
∆–VDET (ppm/˚C)
∆Topt
conditions
VDD × VDD × VDD ×
0.3 0.5 0.7
Min. Typ. Min. Typ. Max. conditions
VDD=
0.85V
10
100
VDD=
1.0V
50
200
Typ.
VDD × VDD × VDD ×
0.35 0.5 0.65
Pch
(Note1) (Note1)
VDS =
0.1V
Condition1 Condition1
VDS=
–2.1V 1.0
VDD=
4.5V
0.70 VDD=
(–VDET)
2.0
Condition2 Condition2 × 1.1V
0.65 0.80
0.55
VDD =
0.7V
2.0
30
VDS =
0.5V
0.5
VDD =
1.5V 200
1.0
2.0
–30˚C≤
Topt
≤85˚C ±100
800
VDD × VDD × VDD ×
0.4 0.5 0.6
11
RN5VD
• RN5VD40A/C to RN5VD60A/C
Part Number.
Detector Threshold
Hysteresis
–VDET (V)
VHYS (V)
Supply Current 1 Supply Current 2 Output Current 1
Iss1 (µA)
Iss2 (µA)
Output Current 2
IOUT1 (mA)
Min. Typ. Max. Min. Typ. Max. condi- Typ. Max. condi- Typ. Max. condi- Min. Typ.
tions
tions
tions
IOUT2 (mA)
conditions
Min. Typ.
RN5VD40A/C 3.900 4.000 4.100 0.120 0.200 0.280
RN5VD41A/C 3.998 4.100 4.202 0.123 0.205 0.287
RN5VD42A/C 4.095 4.200 4.305 0.126 0.210 0.294
5.0
10.0
RN5VD43A/C 4.193 4.300 4.407 0.129 0.215 0.301
RN5VD44A/C 4.290 4.400 4.510 0.132 0.220 0.308 VDD=
(–VDET)
1.3
RN5VD45A/C 4.388 4.500 4.612 0.135 0.225 0.315 –0.16V
RN5VD46A/C 4.485 4.600 4.715 0.138 0.230 0.322
RN5VD47A/C 4.583 4.700 4.817 0.141 0.235 0.329
5.5
3.9
11.0
Nch
RN5VD48A/C 4.680 4.800 4.920 0.144 0.240 0.336
RN5VD49A/C 4.778 4.900 5.022 0.147 0.245 0.343
VDD=
(–VDET)
+2.0V
RN5VD50A/C 4.875 5.000 5.125 0.150 0.250 0.350
RN5VD51A/C 4.973 5.100 5.227 0.153 0.255 0.357
RN5VD52A/C 5.070 5.200 5.330 0.156 0.260 0.364
6.0
VDS=
0.05V 0.01 0.05
VDD=
0.7V
12.0
RN5VD53A/C 5.168 5.300 5.432 0.159 0.265 0.371
RN5VD54A/C 5.265 5.400 5.535 0.162 0.270 0.378 VDD=
RN5VD55A/C 5.363 5.500 5.637 0.165 0.275 0.385 (–VDET)
1.4
RN5VD56A/C 5.460 5.600 5.740 0.168 0.280 0.392 –0.20V
RN5VD57A/C 5.558 5.700 5.842 0.171 0.285 0.399
RN5VD58A/C 5.655 5.800 5.945 0.174 0.290 0.406
RN5VD59A/C 5.753 5.900 6.047 0.177 0.295 0.413
RN5VD60A/C 5.850 6.000 6.150 0.180 0.300 0.420
(Note) Refer to the previously defined “Minimum Operating Voltage”.
Condition 1 : Topt=25˚C
Condition 2 : –30˚C≤Topt≤85˚C
12
6.5
13.0
4.2
Nch
VDD=
1.0
VDS= 1.5V
0.5V
2.0
RN5VD
Topt=25˚C
OperOutput Current 3 Minimum
ating Voltage CD Pin Threshold Voltage
IOUT3 (mA)
condi- Min. Typ.
tions
Pch
VDDL (V)
Typ.
VTCD (V)
(Note1) (Note1)
0.55
0.70
3.0
Condition2 Condition2
VDD=
8.0V
0.65
CD Pin Output Current 2
Delay
Resistance
ICD1 (µA)
IOUT1 (mA)
IOUT2 (mA)
∆–VDET (ppm/˚C)
∆Topt
Max. condi- Min. Typ. Max. condi- Min. Typ.
tions
tions
Condition1 Condition1
VDS=
–2.1V 1.5
CD Pin Output
Current 1
Detector
Threshold
Tempco.
0.80
VDD=
VDS=
0.1V
VDD × VDD × VDD ×
(–VDET)
2.0
DD=
× 1.1V 0.4 0.5 0.6V V0.7V
30
conditions
Min. Typ. condi- Typ. Max. conditions
tions
VDS= VDD=
0.5V 1.5V 200
800
0.5
1.0
2.0
–30˚C≤
Topt
≤85˚C
Typ.
±100
13
RN5VD
OPERATION
VDD
Current Source
Ra Comparator
–
RD
Pch
Schmitt Trigger
+
OUT
Rb
Vref
Tr.2
Tr.1
Nch
Rc
GND
CD
Output Capacitor
Fig. 1 Block Diagram
1
2
3
5
B
Released Voltage +VDET
Detected Voltage –VDET
4
A
Step
Step 1
Step 2
Step 3
Step 4
Step 5
Comparator (–) Pin
Input Voltage
I
II
II
II
I
Comparator Output
L
H
Indefinite
H
L
Tr. 1, 2
OFF
ON
Indefinite
ON
OFF
Nch
OFF
ON
Indefinite
ON
OFF
Pch
ON
OFF
Indefinite
OFF
ON
Detector Threshold Hysteresis
Supply Voltage
(VDD)
Minimum Operaing Voltage
GND
Output Tr.
Output Voltage
(OUT)
Delay Time
I.
GND
II.
Rb + Rc
Ra + Rb + Rc
Rb
Ra + Rb
· VDD
· VDD
Fig. 2 Operation 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 CD pin 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 CD pin, so that output voltage becomes equal to pulled-up voltage after a delay time tD (=0.69× 106× CD) .
14
RN5VD
• Output Delay Operation
Supply Voltage
(VDD)
CD pin Voltage
Released Voltage (+VDET)
CD pin Threshold Voltage (VTCD)
GND
Output Voltage
(OUT)
GND
Output Delay Time (tD)
When the supply voltage crosses the released voltage (+VDET) from a low value to a value higher than
the released voltage (+VDET) , the CD pin voltage starts to increase (starts to charge the external capacitor).
The output voltage is maintained at “L” level until the CD pin voltage reaches to VTCD (CD pin 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 output delay (tD) .
• Output Delay Time
Delay time (tD) can be set accordance with the capacitance CD of external capacitor as below
tD=0.69 × 10 6× CD (s)
15
RN5VD
TEST CIRCUITS
ISS
+5V or VDD
VDD
VDD
470kΩ
VIN
VIN
RN5VD
SERIES
RN5VD
SERIES
GND
GND
Fig. 3 Supply Current test Circuit
Fig. 4 Detector Threshold Test Circuit
VDD
VDD
VIN
IOUT
VIN
RN5VD
SERIES
OUT
OUT
RN5VD××C
SERIES
VDS
GND
IOUT
OUT
VDD+VDS
GND
Fig. 5 Nch Driver Output Current Test Circuit
Fig. 6 Pch Driver Output Current Test Circuit
+5V or VDD
VDD
VDD
VIN
CD
RN5VD
SERIES
VDS
VIN
470kΩ
ICD
OUT
CD
OUT
VDS
GND
GND
Fig. 7 CD pin Threshold Voltage Test Circuit
Fig. 8 CD pin Sink Current Test Circuit
+VDET+2.0V
+5V
VDD
Input Voltage
CD
VIN
0.7V
CD
GND
RN5VD
SERIES
470kΩ
OUT
GND
100%
Output Voltage
50%
Fig. 9 Output Delay Time Test Circuit
GND
tPHL
*) at Fig.4,7,9. CMOS Output Type does not
need a pull-up resistor.
16
tD
RN5VD
SERIES
RN5VD
TYPICAL CHARACTERISTICS
1) Supply Current vs. Input Voltage
RN5VD09x
RN5VD27x
5
2.5
Supply Current Iss(µA)
Supply Current Iss(µA)
3.0
Topt=80˚C
2.0
25˚C
1.5
–30˚C
1.0
0.5
0
4
3
Topt=80˚C
2
25˚C
1
–30˚C
0
0
2
4
6
8
10
8
10
0
2
Input Voltage VIN(V)
4
6
8
Input Voltage VIN(V)
10
RN5VD45x
8
Supply Current Iss(µA)
7
Topt=80˚C
6
25˚C
5
4
3
–30˚C
2
1
0
0
2
4
6
Input Voltage VIN(V)
2) Detector Threshold vs. Temperature
RN5VD27x
RN5VD09x
2.90
Detector Threshold VDET(V)
Detector Threshold VDET(V)
0.98
0.96
+VDET
0.94
0.92
–VDET
0.90
0.88
0.86
–40
–20
0
20
40
60
Temperature Topt(˚C)
80
2.85
+VDET
2.80
2.75
–VDET
2.70
2.65
2.60
–40
–20
0
20
40
60
Temperature Topt(˚C)
80
17
RN5VD
RN5VD45x
Detector Threshold VDET(V)
4.9
4.8
+VDET
4.7
4.6
–VDET
4.5
4.4
–40
–20
0
20
40
Temperature Topt(˚C)
60
80
3) Output Voltage vs. Input Voltage
RN5VD09A
0.8
0.6
Topt=80˚C
0.4
25˚C
–30˚C
0.2
5
0
4
25˚C
3
2
1
0.2
0.4
0.6
0.8
0
1
0.2
RN5VD27A
3.0
VDD Pull-up
470kΩ
2.0
1.5
1.0
Topt= –30˚C
0
0.5
1.0
1.5
2.0
Input Voltage VIN(V)
0.8
1.0
6
5V Pull-up
470kΩ
5
Topt=–30˚C
4
25˚C
3
2
80˚C
1
25˚C
80˚C
0
0.6
RN5VD27A
Output Voltage VOUT(V)
2.5
0.5
0.4
Input Voltage VIN(V)
Input Voltage VIN(V)
Output Voltage VOUT(V)
–30˚C
Topt=80˚C
0
0
18
5V Pull-up
470kΩ
RN5VD09A
6
Output Voltage VOUT(V)
Output Voltage VOUT(V)
1.0
VDD Pull-up
470kΩ
0
2.5
3.0
0
0.5
1.0
1.5
2.0
Input Voltage VIN(V)
2.5
3.0
RN5VD
VDD Pull-up
470kΩ
RN5VD45A
6
Output Voltage VOUT(V)
Output Voltage VOUT(V)
5
4
3
2
1
25˚C
80˚C
0
5
Topt= –30˚C
4
25˚C
3
80˚C
2
1
Topt= –30˚C
0
5V Pull-up
470kΩ
RN5VD45A
0
1
2
3
4
0
5
1
2
3
4
5
Input Voltage VIN(V)
Input Voltage VIN(V)
4) Nch Driver Output Current vs. VDS
RN5VD09x
0.45
Output Currert IOUT(mA)
0.40
VDD=0.85V
0.35
0.30
0.25
0.20
0.15
0.10
0.7V
14
VDD=2.5V
12
10
8
2.0V
6
4
1.5V
2
0.05
0
0
0
0.2
0.4
0.6
VDS(V)
0.8
1.0
0
0.5
1.0
1.5
VDS(V)
2.0
2.5
RN5VD45x
40
Output Currert IOUT(mA)
Output Currert IOUT(mA)
RN5VD27x
16
35
VDD=4.0V
30
3.5V
25
20
3.0V
15
2.5V
10
2.0V
5
1.5V
0
0
1
2
VDS(V)
3
4
19
RN5VD
5) Nch Driver Output Current vs. Input Voltage
RN5VD09x
VDS=0.5V
0.7
VDS=0.5V
10
Output Current IOUT(mA)
Output Current IOUT(mA)
0.6
RN5VD27x
12
0.5
0.4
Topt = 80˚C
0.3
25˚C
0.2
0.1
Topt = –30˚C
25˚C
8
6
80˚C
4
2
–30˚C
0
0
0
0.2
RN5VD45x
18
Output Current IOUT(mA)
0.4
0.6
0.8
Input Voltage VIN(V)
1.0
0
0.5
1.0
1.5
2.0
Input Voltage VIN(V)
2.5
3.0
VDS=0.5V
16
14
Topt = – 30˚C
25˚C
12
10
8
80˚C
6
4
2
0
0
1
2
3
Input Voltage VIN(V)
4
5
6) Pch Driver Output Current vs. Input Voltage
RN5VD09C
RN5VD27C
4.0
4.0
VDS = –2.1V
3.0
Output Current IOUT(mA)
Output Current IOUT(mA)
VDS = –2.1V
3.5
–1.5V
2.5
–1.0V
2.0
1.5
–0.5V
1.0
0.5
3.0
–1.5V
2.5
2.0
–1.0V
1.5
–0.5V
1.0
0.5
0
0
0
20
3.5
2
4
6
Input Voltage VIN(V)
8
10
0
2
4
6
Input Voltage VIN(V)
8
10
RN5VD
RN5VD45C
4.0
VDS =–2.1V
Output Current IOUT(mA)
3.5
3.0
–1.5V
2.5
–1.0V
2.0
1.5
–0.5V
1.0
0.5
0
0
2
4
6
Input Voltage VIN(V)
8
10
7) CD pin Threshold Voltage vs. Temperature
0.7
0.6
0.5
0.4
0.3
0.2
–40
–20
0
20
40
Temperature Topt(˚C)
RN5VD45x
CD pin Threshold Voltage VTCD(V)
RN5VD27x
VDD=0.99V
CD pin Threshold Voltage VTCD(V)
CD pin Threshold Voltage VTCD(V)
RN5VD09x
0.8
2.8
60
80
1.8
VDD=2.97V
1.7
1.6
1.5
1.4
1.3
1.2
–40
–20
0
20
40
Temperature Topt(˚C)
60
80
VDD=4.95V
2.7
2.6
2.5
2.4
2.3
2.2
–40
–20
0
20
40
60
Temperature Topt(˚C)
80
21
RN5VD
8) CD pin Sink Current vs. Input Voltage
RN5VD09x
VDS=0.5V
CD pin Sink Current ICD(mA)
CD pin Sink Current ICD(mA)
VDS=0.5V
Topt = –30˚C
0.16
0.14
0.12
0.10
0.08
Topt = 80˚C
0.06
25˚C
0.04
0.02
2.5
25˚C
2.0
1.5
80˚C
1.0
0.5
–30˚C
0
0
0
0.2
0.4
0.6
0.8
Input Voltage VIN(V)
RN5VD45x
5
CD pin Sink Current ICD(mA)
RN5VD27x
3.0
0.18
0
1.0
0.5
1.0
1.5
2.0
Input Voltage VIN(V)
2.5
3.0
VDS=0.5V
4
Topt = –30˚C
25˚C
3
2
80˚C
1
0
0
1
2
3
Input Voltage VIN(V)
4
5
9) CD pin Sink Current vs. CD pin Voltage
RN5VD09x
CD pin Sink Current ICD(mA)
CD pin Sink Current ICD(mA)
0.10
VDD = 0.85V
0.08
0.06
0.04
0.7V
0.02
0
3.5
VDD = 2.5V
3.0
2.5
2.0
2.0V
1.5
1.0
1.5V
0.5
0
0
22
RN5VD27x
4.0
0.12
0.2
0.4
0.6
0.8
CD pin Voltage VCD(V)
1.0
0
0.5
1.0
1.5
2.0
CD pin Voltage VDS(V)
2.5
RN5VD
RN5VD45x
CD pin Sink Current ICD(mA)
10
VDD = 4.0V
8
3.5V
6
3.0V
4
2.5V
2
2.0V
1.5V
0
0
1
2
3
CD pin Voltage VDS(V)
4
10) Output delay Time vs. External Capacitance
RN5VD09A
100
10
tD
1
tPHL
0.1
0.01
0.0001
0.001
0.01
RN5VD27A
1000
Output Delay Time tP(ms)
Output Delay Time tP(ms)
1000
0.1
100
10
tD
1
tPHL
0.1
0.01
0.0001
1
0.001
0.01
0.1
External Capacitance CD(µF)
External Capacitance CD(µF)
1
11) Delay Resistance vs. Temperature
RN5VD45A
1000
RN5VDxxx
100
Delay Resistance RD(MΩ)
Output Delay Time tP(ms)
1.6
10
tD
1
tPHL
0.1
0.01
0.0001
0.001
0.01
0.1
External Capacitance CD(µF)
1
1.4
1.2
1.0
0.8
0.6
0.4
–40
–20
0
20
40
60
80
Temperature Topt(˚C)
23
RN5VD
TYPICAL APPLICATIONS
• RN5VDxxA CPU Reset Circuit (Nch Open Drain Output)
(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.
VDD
VDD
CD
CD
R
RN5VDxxA
SERIES
VDD1
VDD2
VDD
RESET
OUT
VDD
CD
CPU
GND
CD
GND
R
RN5VDxxA
SERIES
RESET
OUT
GND
• RN5VDxxC CPU Reset Circuit (CMOS Output)
VDD
VDD
CD
CD
VDD
RN5VDxxC
SERIES
RESET
OUT
CPU
GND
GND
• Memory Back-up Circuit
VDD
VCC
D1
D2
A Y1
Y2
B
Y3
G Y4
GND
VDD
CD
RN5VDxxC
SERIES
CD
GND
24
OUT
VDD
VCC
VCC
VCC
VCC
RAM1
RAM2
RAM3
RAM4
GND CS
GND CS
GND CS
GND CS
CPU
GND
RN5VD
• Manual Reset Circuit
VDD
VDD
VDD
VDD
R
CD
RN5VDxxA
SERIES
CD
OUT
CD
RN5VDxxC
SERIES
OUT
CD
GND
GND
APPLICATION HINTS
VDD
VDD
R1
VDD
VDD
R2
CD
RN5VD
OUT
SERIES
GND
Fig.10
CD
RN5VD
OUT
SERIES
GND
Fig.11
1. When RN5VDxxC (CMOS Output) is used in Fig.10,this IC may oscillate by cross conduction current at the detection 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)
25